CEIDARS-Lite
[No Longer Used at ARB]
Overview -- Who Can Use CEIDARS-Lite? -- System Requirements --
Software Download -- Instructions -- Optional --
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Health and Safety Code section 44321 requires CARB to "compile and maintain a list of substances" that must be reported under the AB 2588 Air Toxics "Hot Spots" program. CARB must evaluate substances that are listed under:
Substances contained in any of the above lists that have not been added to the regulation will be reviewed as necessary and where data is available. Substances may be added to Appendix A if a potential impact on public health exists. A substance is removed from the list if no evidence exists that it has been detected in air, and is not manufactured or used in California, or, if manufactured or used in California, because of the physical or chemical characteristics of the substance or the manner in which it is manufactured or used, there is no possibility that it will become airborne.
On November 19, 2020, the California Air Resources Board (CARB) adopted amendments to the proposed Air Toxics “Hot Spots” Emission Inventory Criteria and Guidelines (EICG) Regulation, and the Regulation for the Reporting of Criteria Air Pollutants and Toxic Air Contaminants (CTR). The amendments included updates to Appendix A – list of substances and were effective March 21, 2022.
| 2022 EICG Updates to Appendix A | The EICG Appendix A chemical list now includes 1,925 chemicals. Appendix A-I includes 1,457 chemicals (including 3 broad functional groups), A-II includes 184 and A-III includes 284. During the 2020 EICG amendment process, 994 chemicals were added to A-I, 13 to A-II and 162 to A-III. (In a few cases, a chemical was moved from A-II to A-I). It is important to note that some chemicals were listed in an individual alphabetical location with the phrase “(see…)”, this indicates that the main listing is under a broader group of chemicals as well as the alphabetical location. Additionally, in a few cases, staff found more than one CAS number for essentially the same chemical, those use the notation “(alt. CAS, see CAS…)”. This is important to note because duplicates must be removed to get a unique count of the chemicals as calculated above. Further, there are 194 chemicals in ChemSet-1 (including 2 functional groups) and 765 ChemSet-2 chemicals. |
| 2022 EICG Appendix A list of "Hot Spots" Substances | Appendix A.pdf (ca.gov) (pdf) and AB2588_Appendix_A_v20220331.xlsx(ca.gov) in Excel |
Prior Regulation (approved by OAL on August 27, 2007)
At the November 16, 2006, Board Hearing, the California Air Resources Board approved updates to Appendix A. The following table provides an overview to the 2007 updates and a link to the previous version of Appendix A. This list is provided for historical archive purposes. It has been superseded by the 2022 EICG regulation, effective March 21, 2022.
2007 EICG Updates to Appendix A | Bromine pentafluoride, t-Butyl acetate,2-Chlorophenol, Hydrogen bromide, Hydrogen selenide, 5-Nitroacenaphthene, 4-Nitropyrene, Oleum, Polybrominated diphenyl ethers (PBDEs), Perfluorooctanoic acid (PFOS) and derivatives, Sulfur trioxide, Tetrachlorophenols, Vanadium pentoxide, 3,3',4,4'-Tetrachlorobiphenyl (PCB 77), 3,4,4',5-Tetrachlorobiphenyl (PCB 81), 2,3,3',4,4'-Pentachlorobiphenyl (PCB 105), 2,3,4,4',5-Pentachlorobiphenyl (PCB 114), 2,3',4,4',5-Pentachlorobiphenyl (PCB 118), 2,3',4,4',5'-Pentachlorobiphenyl (PCB 123), 2,3,3',4,4',5-Hexachlorobiphenyl (PCB 156), 2,3,3',4,4',5'-Hexachlorobiphenyl (PCB 157), 2,3',4,4',5,5'-Hexachlorobiphenyl (PCB 167), 2,3',4,4',5,5'-Hexachlorobiphenyl (PCB 169), 2,3,3',4,4',5,5'-Hexachlorobiphenyl (PCB 189), Dichlorodifluoromethane (Freon 12). See Appendix A for more details. |
2007 EICG Appendix A list of "Hot Spots" Substances | Appendix A in Excel |
| Cancer Risk: | The theoretical probability of contracting cancer when continually exposed for a lifetime (70 years) to a given concentration of a substance. The probability is usually calculated as an upper confidence limit. The maximum estimated risk may be presented as the number of chances in a million of contracting cancer. | |
| CAS: | Chemical Abstract Services (CAS) Registry Number is assigned to each pollutant. Do not use dashes when using a CAS # to query the CEIDARS database. | |
| CEIDARS: | The California Emission Inventory Database and Reporting System (CEIDARS) contains all of the emissions data for point sources at ARB. | |
| CERR: | CERR, the Consolidated Emission Consolidated Emission Reporting Rule, is a US/EPA requirement for certain classes of facilities. | |
| CHAPIS: | CHAPIS, the Community Health Air Pollution Information System, provides interactive maps of air pollution emission sources over the web. | |
| Database Year: | Criteria Pollutant data are available for a variety of database years. Toxics inventory data are available from 1996 to 2003 database years; however, toxic emissions may be derived from earlier emission inventory years. The toxics data are submitted to the ARB by the local air districts as a requirement of the Air Toxics "Hot Spots" Program. This Program requires emission inventory updates every four years, although more frequent updates may occur. | |
| Facility ID: | Facility ID is a number that identifies a particular facility. This number is assigned to the facility by the local Air District responsible for this facility. | |
| Facility Name: | When you search for specific facilities, remember that names will often be abbreviated; i.e. "Northern California Electric" facilities may appear both spelled out and abbreviated as both "N.C.E." and "NCE", depending on how the information was submitted by the facility owner. | |
| Facility Prioritization Score: | Districts prioritize facilities in the "Hot Spots" program and assign a cancer, chronic, and acute prioritization score based on those emissions. In addition to the quantity of emissions, the district's evaluation considers other factors such as the toxicity of each substance emitted from the facility. If the prioritization score is greater than the District threshold, the facility must conduct a health risk assessment. For more information see the CAPCOA Facility Prioritization Guidelines, 1990. | |
| Facility Standard Industrial Classification (SIC) Code: | This is a list of codes that represent various industrial classifications. This list is maintained by the US Office of Management and Budget. For example, SIC Code 2512 is used for facilities that make "Upholstered Household Furniture". One site that allows searches for particular SIC codes can be found at the US Dept. of Labor OSHA SIC Search. | |
| Health Risk Assessment (HRA): | A comprehensive analysis of the dispersion of hazardous substances in the environment, their potential for human exposure, and a quantitative assessment of both individual and population-wide health risks associated with those levels exposed. For more information see the OEHHA Air Toxics "Hot Spots" Program Risk Assessment Guidelines (August 2003). | |
| Non-Cancer Acute Hazard Index: | The potential non-cancer health impacts resulting from a one-hour exposure to toxic substances. The total hazard index includes the sum of hazard indices for pollutants with non-cancer health effects that have the same or similar adverse health effects (endpoints). An acute hazard index is calculated by dividing the one-hour concentration of a toxic pollutant by the acute reference exposure level for that pollutant. | |
| Non-Cancer Chronic Hazard Index: | The potential non-cancer health impacts resulting from exposure to toxic substances usually lasting from one year to a lifetime. The total hazard index includes the sum of hazard indices for pollutants with non-cancer health effects that have the same or similar adverse health effects (endpoints). A chronic hazard index is calculated by dividing the annual average concentration of a toxic pollutant by the chronic reference exposure level for that pollutant. | |
| Notification Levels: | The district established levels where the results of the health risk assessment required under the Hot Spots Program are considered significant enough to notify the affected residents and businesses near a facility of the potential health impacts from that facility's emissions. | |
| Prioritization Thresholds: | These levels, established by each district, define a facility's requirements under the Hot Spots Program based on the prioritization score calculation. Commonly, there are two thresholds, an upper and lower that may be different for cancer and non-canceer prioritization evauations. Facilities with a score above the upper threshold are high priority and must perform a health risk assessment. Facilities below the lower threshold are low priority. Facilities that fall between the two thresholds are called intermediate priority and, at the district's discretion, may be required to perform a risk assessment. | |
| Program Status: | The current facility status in the "Hot Spots" Program (active, exempt, etc). The district may need to be contacted for specific details concerning applicability to the program, exemption, and the extent to which a facility has fulfilled emission inventory reporting and HRA requirements. Code: A - Priority Score > 10; B - 10<Risk<50; C - 50<Risk<100; D - Risk > 100; E - Unprioritized; F - 1<Risk<10; G - exempt or out of business. | |
| Risk Reduction Audit and Plan (RRAP) Levels: | The district established levels where the results of the health risk assessment required under the "Hot Spots" Program are considered significant enough to require the facility to prepare and implement measures to reduce its emissions and potential health risk. |
Health and Safety Code section 44363 requires each of the 35 local air districts to publish an annual report. The statute reads as follows:
(a) Commencing July 1, 1991, each district shall prepare and publish an annual report which does all of the following:
(1) Describes the priorities and categories designated pursuant to Section 44360 and summarizes the results and progress of the health risk assessment program undertaken pursuant to this part.
(2) Ranks and identifies facilities according to the degree of cancer risk posed both to individuals and to the exposed population.
(3) Identifies facilities which expose individuals or populations to any noncancer health risks.
(4) Describes the status of the development of control measures to reduce emissions of toxic air contaminants, if any.
(b) The district shall disseminate the annual report to county boards of supervisors, city councils and local health officers, and the district board shall hold one or more public hearings to present the report and discuss its content and significance. Added Stats 1987 ch 1252 1, operative July 1, 1988.
Assembly Bill (AB) 2588 (Connelly), the Air Toxics "Hot Spots" Information and Assessment Act, requires facilities found to have a significant risk from their emissions to notify all exposed persons. Once risk assessments (see Risk Assessment) are reviewed by the Office of Environmental Health Hazard Assessment (OEHHA) and approved by the air pollution control or air quality management district (district), facility operators must notify all exposed persons of the risk assessment results if the district determines that there is a potentially significant health risk associated with emissions from the facility. Each district is responsible for establishing the notification threshold at which facilities are required to notify all exposed persons with either a letter to individual neighbors, or with a newspaper notification. Some districts also require the facility to post information about the facility risk at the local library.
The California Air Pollution Control Officers Association (CAPCOA) Toxics Committee, in cooperation with OEHHA and the Air Resources Board (ARB), developed the CAPCOA Public Notification Guidelines, October 1992. The purpose of these guidelines is to assist districts in developing their public notification procedures. However, districts may develop and use notification methods which differ from the CAPCOA guidelines.
Some facilities with diesel engines may have to conduct public notification. An industrywide or standard public notice for diesel PM may be appropriate, depending on district policies.
District | ||||||||||
Cancer | Noncancer Chronic | Noncancer Acute | Cancer | Non- cancer | Cancer | Non- cancer | ||||
High | Low | High | Low | High | Low | |||||
Amador | ≥10 | ≤1 | ≥10 | ≤1 | ≥10 | ≤1 | ≥10 | ≥1 | ≥10 | ≥1 |
Antelope Valley | 10 | 1 | 10 | 1 | 10 | 1 | 10 | 1 | 100 | 10 |
Bay Area | ≥10 | <1 | ≥10 | <1 | ≥10 | <1 | >10 | >1 | >100 | >10 |
Butte | ≥100 | <1 | ≥100 | <1 | ≥100 | <1 | 10 | ≥1 | none | none |
Calaveras | none | none | none | none | none | none | 10 | none | 10 | none |
Colusa | >10 | <1 | >10 | <1 | >10 | <1 | >10 | >1 | >10 | >1 |
El Dorado | ≥10 | <1 | ≥10 | <1 | ≥10 | <1 | none | none | none | none |
Feather River | 10 | 1 | 10 | <1 | 10 | 1 | 10 | 1 | none | none |
Great Basin Unified | 10 | 1 | 10 | 1 | 10 | 1 | none | none | none | none |
Glenn | 10 | 1 | 10 | 1 | 10 | 1 | 10 | 1 | none | none |
Imperial | 10 | 1 | 10 | 1 | 10 | 1 | 10 | 1 | none | none |
Kern | 10 | <1 | 10 | <1 | 10 | <1 | 10 | 1 | 100 | 5 |
Lake | 10 | 1 | 10 | 1 | 10 | 1 | none | none | 20 | none |
Lassen | 100 | 10 | 100 | 10 | 100 | 10 | none | none | none | none |
Monterey Bay Unified | ≥10 | ≤1 | ≥10 | ≤1 | ≥10 | ≤1 | >10 | >1 | >10 | >1 |
Mendocino | 10 | 1 | 10 | 1 | 10 | 1 | 10 | 1 | none | none |
Modoc | none | none | none | none | none | none | none | none | none | none |
Mojave | ≥10 | <1 | ≥10 | <1 | ≥10 | <1 | ≥10 | ≥1 | ≥100 | ≥10 |
Mariposa | none | none | none | none | none | none | none | none | none | none |
North Coast Unified | 50 | 10 | 50 | 10 | 50 | 10 | 10 | 1 | none | none |
Northern Sierra | ≥10 | ≥1 | ≥10 | ≥1 | ≥10 | ≥1 | none | none | none | none |
Northern Sonoma | 10 | 1 | 10 | 1 | 10 | 1 | 10 | 1 | 100 | 10 |
Placer | 10 | 1 | 10 | 1 | 10 | 1 | ≥10 | ≥1 | ≥10 | ≥1 |
Sacramento | ≥10 | <1 | ≥10 | <1 | ≥10 | <1 | ≥10 | ≥1 | ≥10 | ≥1 |
San Diego | ≥100 | <1 | ≥10 | <1 | ≥10 | <1 | ≥10 | ≥1 | ≥100 | ≥1 |
San Joaquin Valley | >10 | ≤1 | >10 | ≤1 | >10 | ≤1 | ≥10 | >1 | ≥100 | >5 |
San Luis Obispo | ≥10 | ≤1 | ≥10 | ≤1 | ≥10 | ≤1 | >10 | >1 | >10 | >1 |
Santa Barbara | >10 | <1 | >10 | <1 | >10 | <1 | ≥10 | >1 | ≥10 | >1 |
Shasta | 10 | 1 | 10 | 1 | 10 | 1 | 10 | 1 | 10 | 1 |
Siskiyou | >100 | <1 | >100 | <1 | >100 | <1 | 10 | 1 | 100 | 5 |
South Coast | >10 | ≤1 | >10 | ≤1 | >10 | ≤1 | ≥10 | ≥1 | ≥25 | ≥3 |
Tehama | 100 | 1 | 100 | 1 | 100 | 1 | none | none | none | none |
Tuolumne | 50 | 10 | 50 | 10 | 50 | 10 | 10 | >1 | 10 | >1 |
Ventura | ≥10 | ≤1 | ≥10 | ≤1 | ≥10 | ≤1 | ≥10 | ≥1 | ≥10 | ≥1 |
Yolo-Solano | 10 | 1 | 10 | 1 | 10 | 1 | 10 | 1 | none | none |
Source: Updated upon District request, based on ARB/CAPCOA Risk Management Guidance for Stationary Sources of Air Toxics, July 23, 2015
Last updated: 10/5/2021
Air Toxics “Hot Spots" Program
Use these steps when calculating a screening health risk assessment score for a facility with stationary diesel engines.
Step 1 | Before beginning your analysis, determine the Load, Engine Size, Emission Factor, Distance to Nearest Receptor, and Annual Hours of Operation for each of your engines. The district will help you determine the Urban/Rural Option. |
Step 2 | Please choose the load that most closely matches the average load for the engine during testing (either 50 or 75% load). Then click on the table with the engine size that is closest in size to your engine. |
Step 3 | Find the matrix that corresponds to your emission factor (either 0.01, 0.15, 0.40, 0.55, or 1.0 g/bhp-hr). If you do not know the emission rate of your engine, use 1.0 g/bhp-hr. |
Step 4 | Find the row that corresponds to the correct number of hours of operation (on the left of the table), and the column with the correct receptor distance (between 20 and 1600 meters) to calculate the risk from that engine. |
Step 5 | Repeat these steps for the other engines and sum the results to get the total facility risk. |
Step 6 | Work with local air district to determine next steps. |
Example Calculation:
Step 1:
Engine load = 50% (estimated)
Engine size = 180 hp (maximum rated horsepower)
Emission factor = 0.40 g/bhp-hr (certified emission rate at maximum load - assume 1.0g/bhp-hr if unknown)
Annual hours of operation = 29 h (includes all operating hours, including maintenance and testing, except actual emergency hours)
Distance to nearest receptor = 53 m (measured from the engine to the nearest residential or commercial receptor)
Step 2: Since the engine primarily performs at minimal load during testing, we will use the 50% load tables. The 180 hp engine is closest in size to the 175 hp engine, so we will use the 175 hp table for this example.
Step 3: Click on the 175 hp table and find the matrix that corresponds to 0.40 g/bhp-hr.
Step 4: Identify the row that corresponds to 30 hours (closest to 29 hours) and read across until you find the risk value that is directly under 50 meters (closest to 53 meters). The maximum estimated risk is 8 per million.
Step 5: Repeat as necessary and sum the results to get the total facility risk.
Step 6: Submit results of screening risk calculation to the local air district upon request.
A copy of the MS Excel spreadsheets is available: (50% load) and (75% load).
Because some receptors may be located closer to the engine than the point of maximum impact (the PMI or area of highest risk), we have created tables that retain the higher risk numbers for distances closer than the PMI in order to ensure that these screening tables are still health conservative (50% modified) and (75% modified).
Back to Screening Risk Spreadsheets
"Hot Spots" Program
The DRAFT Clearinghouse of diesel engine emissions data has been provided below to local air district staff for district staff to review. The MS Access database is linked below, and each file is also provided in MS Excel format.
The data has not been reviewed or evaluated by ARB. This data is for review only. Most of the emissions data is incomplete, the fuel may be unspecified, and the study and data may not have been peer-reviewed. Some of the reports are no longer available. ARB staff does not have copies of any of these reports.
Clearinghouse of diesel engine emissions data (link to MS Access database)
Excel Documents
Appendix A - Appendix B - Documents
Carbonyls - Dioxins and Furans - Emissions Data - Engine Data - Fuel Data
Metals/Inorganics - Speciated Hydrocarbons - Heavy Hydrocarbons
Nitrosamines - PAH/NPAH - Hopanes/Steranes
Quick Data Summary
There are 26 acrolein emission factors from the 180 data records for Carbonyls, only 1 Dioxins and Furans study, 674 records for Emissions Data, 54 records for Metals/Inorganic, 139 records for Speciated Hydrocarbons, only 8 records for Heavy Hydrocarbons, 22 records with limited data for Nitrosamines, 225 records for PAHs and Nitro-PAHs, and 35 detailed records for Hopanes and Steranes. A comparison of acrolein vs. PM is here .
(Chemical Abstracts Service Registry Numbers) |
| The following substance names are sorted by Chemical Abstracts Service registry numbers and provide a cross reference to the associated Department of Transportation (DOT) number/ARB Emittent ID and substance name. |
CAS # / ARB Emitent ID | DOT #,+ | Substance Name | ||
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50-00-0 | * | Formaldehyde | ||
50-29-3 | 2761 | DDT (Dichlorodiphenyltrichloroethane) (Please see DDE.) | ||
50-32-8 | * | Benzo[a]pyrene (Please see POM.) | ||
51-28-5 | 2,4-Dinitrophenol | |||
51-79-6 | * | Ethyl Carbamate (Urethane) | ||
53-70-3 | * | Dibenz[a,h]anthracene (Please see POM.) | ||
53-96-3 | 2-Acetylaminofluorene | |||
55-18-5 | N-Nitrosodiethylamine (Please see Dialkylnitrosamines.) | |||
56-23-5 | 1846 | * | Carbon Tetrachloride | |
56-38-2 | 2783/2784 | Parathion | ||
56-49-5 | * | 3-Methylcholanthrene | ||
56-55-3 | * | Benzo[a]anthracene (Please see POM.) | ||
57-12-5 | * | Cyanide Compounds | ||
57-14-7 | 1163 | 1,1-Dimethyl Hydrazine | ||
57-57-8 | Beta-Propiolactone | |||
57-74-9 | 2762 | Chlordane | ||
57-97-6 | * | 7,12-Dimethylbenz[a]anthracene | ||
58-89-9 | 2761 | * | Lindane (All Isomers) | |
58-90-2 | 2,3,4,6-Tetrachlorophenol (Please see Chlorophenols.) | |||
59-89-2 | N-Nitrosomorpholine | |||
60-11-7 | Dimethyl Aminoazobenzene | |||
60-34-4 | 1244 | Methyl Hydrazine | ||
60-35-5 | * | Acetamide | ||
62-53-3 | 1547 | * | Aniline | |
62-56-6 | 2877 | ++ | Thiourea | |
62-73-7 | 2783 | Dichlorvos (DDVP) | ||
62-75-9 | * | N-Nitrosodimethylamine | ||
63-25-2 | 2757 | Carbaryl | ||
64-67-5 | 1594 | ++ | Diethyl Sulfate | |
67-56-1 | 1230 | * | Methanol | |
67-63-0 | 1219 | Isopropyl Alcohol | ||
67-66-3 | 1888 | * | Chloroform | |
67-72-1 | 9037 | * | Hexachloroethane | |
68-12-2 | 2265 | * | Dimethyl Formamide | |
71-36-3 | 1120 | N-Butyl Alcohol | ||
71-43-2 | 1114 | * | Benzene | |
71-55-6 | 2831 | * | Methyl Chloroform (1,1,1-Trichloroethane) | |
72-43-5 | 2761 | Methoxychlor | ||
72-55-9 | DDE (P,P-Dichlorodiphenyldichloroethylene) | |||
74-83-9 | 1062 | * | Methyl Bromide (Bromomethane) | |
74-87-3 | 1063 | Methyl Chloride (Chloromethane) | ||
74-88-4 | 2644 | Methyl Iodide (Iodomethane) | ||
74-90-8 | 1613/1051 | Hydrocyanic Acid (Please see Cyanide Compounds.) | ||
75-00-3 | 1037 | * | Ethyl Chloride (Chloroethane) | |
75-01-4 | 1086 | * | Vinyl Chloride | |
75-05-8 | 1648 | Acetonitrile | ||
75-07-0 | 1089 | * | Acetaldehyde | |
75-09-2 | 1593 | * | Methylene Chloride (Dichloromethane) | |
75-15-0 | 1131 | * | Carbon Disulfide | |
75-21-8 | 1040 | * | Ethylene Oxide | |
75-25-2 | 2515 | Bromoform | ||
75-34-3 | 2362 | * | Ethylidene Dichloride (1,1-Dichloroethane) | |
75-35-4 | 1303 | * | Vinylidene Dhloride (1,1-Dichloroethylene) | |
75-43-4 | Dichlorofluoromethane {Freon 21} | |||
75-44-5 | 1076 | * | Phosgene | |
75-55-8 | 1921 | 1,2-Propylenimine (2-Methyl Aziridine) | ||
75-56-9 | 1280 | * | Propylene Oxide | |
75-65-0 | 1120 | Tert-Butyl Alcohol | ||
75-71-8 | Dichlorodifluoromethane {Freon 12} | |||
76-13-1 | Chlorinated Fluorocarbons | |||
76-44-8 | 2761 | Heptachlor | ||
77-47-4 | 2646 | Hexachlorocyclopentadiene | ||
77-78-1 | 1595 | Dimethyl Sulfate | ||
78-59-1 | 1993 | * | Isophorone | |
78-87-5 | 1279 | Propylene Dichloride (1,2-Dichloropropane) | ||
78-92-2 | 1120 | Sec-Butyl Alcohol | ||
78-93-3 | 1193/1232 | * | Methyl Ethyl Ketone (2-Butanone) | |
79-00-5 | 2831 | * | 1,1,2-Trichloroethane | |
79-01-6 | 1710 | * | Trichloroethylene | |
79-06-1 | 2074 | * | Acrylamide | |
79-10-7 | 2218 | * | Acrylic Acid | |
79-11-8 | 1750/1751 | ++ | Chloroacetic Acid | |
79-21-0 | 2131 | ++ | Peracetic Acid | |
79-34-5 | 1702 | * | 1,1,2,2-Tetrachloroethane | |
79-44-7 | 2262 | Dimethyl Carbamoyl Chloride | ||
79-46-9 | 2608 | * | 2-Nitropropane | |
80-05-7 | 4,4'-Isopropylidenediphenol | |||
80-15-9 | 2116 | ++ | Cumene Hydroperoxide | |
80-62-6 | 1247 | * | Methyl Methacrylate | |
82-68-8 | Pentachloronitrobenzene (Quintozene) | |||
83-32-9 | Acenaphthene (Please see POM.) | |||
84-74-2 | Dibutylphthalate | |||
85-01-8 | Phenanthrene (Please see POM.) | |||
85-44-9 | 2214 | * | Phthalic Anhydride | |
85-68-7 | Butyl Benzyl Phthalate | |||
86-30-6 | N-Nitrosodiphenylamine | |||
86-73-7 | Fluorene (Please see POM.) | |||
87-68-3 | 2279 | Hexachlorobutadiene | ||
87-86-5 | 2020 | * | Pentachlorophenol | |
88-06-2 | * | 2,4,6-Trichlorophenol | ||
90-04-0 | 2431 | O-Anisidine | ||
90-43-7 | 2-Phenylphenol | |||
91-20-3 | 1334/2304 | * | Naphthalene | |
91-22-5 | 2656 | ++ | Quinoline | |
91-94-1 | * | 3,3'-Dichlorobenzidene | ||
92-52-4 | Biphenyl | |||
92-67-1 | 4-Aminobiphenyl | |||
92-87-5 | 1885 | Benzidine | ||
92-93-3 | 4-Nitrobiphenyl | |||
94-75-7 | 2765 | 2,4-D, Salts and Esters | ||
95-47-6 | 1307 | * | O-Xylene (Please see Xylenes - Isomers and Mixture.) | |
95-48-7 | 2076 | O-Cresol (Please see Cresols.) | ||
95-53-4 | 1708 | O-Toluidine | ||
95-57-8 | 2020/2021 | ++ | O-Chlorophenol (Please see Chlorophenols.) | |
95-63-6 | 2325 | 1,2,4-Trimethylbenzene | ||
95-70-5 | 2,5-Diaminotoluene (Please see Diaminotoluene - Mixed Isomers.) | |||
95-80-7 | 1709 | 2,4-Toluene Diamine (2,4-Diaminotoluene) | ||
95-95-4 | 2,4,5-Trichlorophenol | |||
96-09-3 | * | Styrene Oxide | ||
96-12-8 | 2872 | 1,2-Dibromo-3-Chloropropane (DBCP) | ||
96-45-7 | * | Ethylene Thiourea | ||
98-07-7 | 2226 | ++ | Benzotrichloride | |
98-82-8 | 1918 | Cumene | ||
98-86-2 | Acetophenone | |||
98-88-4 | 1736 | ++ | Benzoyl Chloride | |
98-95-3 | 1662 | * | Nitrobenzene | |
100-02-7 | 1663 | ++ | 4-Nitrophenol | |
100-21-0 | Terephthalic Acid | |||
100-41-4 | 1175 | * | Ethyl Benzene | |
100-42-5 | 2055 | * | Styrene | |
100-44-7 | 1738 | * | Benzyl Chloride | |
101-14-4 | * | 4,4'-Methylene Bis(2-Chloroaniline) | ||
101-68-8 | 2489 | * | Methylene Diphenyl Diisocyanate (MDI) | |
101-77-9 | * | 4,4-Methylenedianiline | ||
103-23-1 | Bis(2-Ethylhexyl)Adipate | |||
105-60-2 | Caprolactam | |||
106-42-3 | 1307 | * | P-Xylene (Please see Xylenes - Isomers and Mixture) | |
106-44-5 | 2076 | P-Cresol (Please see Cresols.) | ||
106-46-7 | 1592 | * | 1,4-Dichlorobenzene (P-Dicholorobenzene) | |
106-48-9 | 2020/2021 | ++ | P-Chlorophenol (Please see Chlorophenols.) | |
106-50-3 | 1673 | P-Phenylenediamine | ||
106-51-4 | 2587 | Quinone | ||
106-88-7 | * | 1,2-Epoxybutane | ||
106-89-8 | 2083 | * | Epichlorohydrin | |
106-93-4 | 1605 | * | Ethylene Dibromide (1,2-Dibromoethane) | |
106-99-0 | 1010 | * | 1,3-Butadiene | |
107-02-8 | 1092 | * | Acrolein | |
107-05-1 | 1100 | * | Allyl Chloride | |
107-06-2 | 1184 | * | Ethylene Dichloride (1,2-Dichloroethane) | |
107-13-1 | 1093 | * | Acrylonitrile | |
107-21-1 | * | Ethylene Glycol | ||
107-30-2 | 1239 | Chloromethyl Methyl Ether | ||
108-05-4 | 1301 | * | Vinyl Acetate | |
108-10-1 | 1245 | Methyl Isobutyl Ketone (Hexone) | ||
108-31-6 | 2215 | * | Maleic Anhydride | |
108-38-3 | 1307 | * | M-Xylene (Please see Xylenes - Isomers and Mixture.) | |
108-39-4 | 2076 | M-Cresol (Please see Cresols.) | ||
108-43-0 | 2020/2021 | ++ | M-Chlorophenol (Please see Chlorophenols.) | |
108-88-3 | 1294 | * | Toluene | |
108-90-7 | 1134 | * | Chlorobenzene | |
108-95-2 | 1671/2312/2821 | * | Phenol | |
109-86-4 | * | Ethylene Glycol Monomethyl Ether | ||
110-49-6 | Ethylene Glycol Monomethyl Ether Acetate | |||
110-54-3 | 1208 | * | Hexane | |
110-80-5 | 1171 | * | Ethylene Glycol Monoethyl Ether (Please see Glycol Ethers.) | |
110-82-7 | 1145 | Cyclohexane | ||
111-15-9 | * | Ethylene Glycol Monoethyl Ether Acetate | ||
111-30-8 | Glutaraldehyde | |||
111-42-2 | * | Diethanolamine | ||
111-44-4 | 1916 | Dichloroethyl Ether (Bis(2-Chloroethyl) Ether) | ||
111-76-2 | * | Ethylene Glycol Monobutyl Ether | ||
114-26-1 | Propoxur (Baygon) | |||
115-07-1 | 1075/1077 | ++ | Propene | |
115-32-2 | 2761 | ++ | Dicofol | |
117-81-7 | * | Bis(2-Ethylhexyl)Phthalate (DEHP) | ||
118-74-1 | 2729 | * ++ | Hexachlorobenzene | |
119-90-4 | 3,3'-Dimethoxybenzidine | |||
119-93-7 | 3,3'-Dimethyl Benzidine (O-Tolidine) | |||
120-12-7 | Anthracene (Please see POM.) | |||
120-80-9 | Catechol | |||
120-82-1 | 2321 | 1,2,4-Trichlorobenzene | ||
121-14-2 | 2,4-Dinitrotoluene | |||
121-44-8 | 1296 | * | Triethylamine | |
121-69-7 | 2253 | N,N-Dimethylaniline | ||
122-66-7 | 1,2-Diphenylhydrazine | |||
123-31-9 | 2662 | Hydroquinone | ||
123-38-6 | 1275 | ++ | Propionaldehyde | |
123-91-1 | 1165 | * | 1,4-Dioxane | |
126-99-8 | 1991 | Chloroprene | ||
127-18-4 | 1897 | * | Tetrachloroethylene (Perchloroethylene) | |
129-00-0 | Pyrene (Please see POM.) | |||
131-11-3 | 9188 | Dimethyl Phthalate | ||
132-64-9 | Dibenzofuran | |||
133-06-2 | 9188 | Captan | ||
133-90-4 | Chloramben | |||
139-13-9 | Nitrilotriacetic Acid | |||
140-88-5 | 1917 | Ethyl Acrylate | ||
141-32-2 | 2348 | Butyl Acrylate | ||
151-56-4 | 1185 | Ethylene Imine (Aziridine) | ||
156-62-7 | 1403 | Calcium Cyanamide | ||
189-55-9 | * | Dibenzo[a,i]pyrene | ||
189-64-0 | * | Dibenzo[a,h]pyrene | ||
191-30-0 | * | Dibenzo[a,l]pyrene | ||
191-24-2 | Benzo[g,h,i]perylene (Please see POM.) | |||
192-65-4 | * | Dibenz[a,e]pyrene (Please see POM.) | ||
193-39-5 | * | Indeno[1,2,3-cd]pyrene (Please see POM.) | ||
194-59-2 | * | 7H-Dibenzo[c,g]carbazole | ||
205-82-3 | * | Benzo[j]fluoranthene | ||
205-99-2 | * | Benzo[b]fluoranthene (Please see POM.) | ||
206-44-0 | Fluoranthene (Please see POM.) | |||
207-08-9 | * | Benzo[k]fluoranthene (Please see POM.) | ||
208-96-8 | Acenaphthylene (Please see POM.) | |||
218-01-9 | * | Chrysene (Please see POM.) | ||
224-42-0 | * | Dibenz[a,j]acridine | ||
226-36-8 | * | Dibenz[a,h]acridine | ||
302-01-2 | 2029/2030 | * | Hydrazine | |
334-88-3 | Diazomethane | |||
463-58-1 | 2204 | ++ | Carbonyl Sulfide | |
496-72-0 | 3,4-Diaminotoluene (Please see Diaminotoluene - Mixed Isomers.) | |||
510-15-6 | Chlorobenzilate | |||
532-27-4 | 1697 | 2-Chloroacetophenone | ||
534-52-1 | 1598 | 4,6-Dinitro-O-Cresol and Salts | ||
540-84-1 | 1262 | ++ | 2,2,4-Trimethylpentane | |
540-88-5 | t-Butyl acetate | |||
542-75-6 | 2047 | 1,3-Dichloropropene (Telone) | ||
542-88-1 | 2249 | * | Bis(Chloromethyl)Ether | |
584-84-9 | 2078 | * | 2,4-Toluene Diisocyanate | |
593-60-2 | 1085 | Vinyl Bromide | ||
602-87-9 | * | 5-Nitroacenaphthene | ||
607-57-8 | * | 2-Nitrofluorene | ||
608-73-1 | Hexachlorocyclohexanes | |||
624-83-9 | 2480 | * | Methyl Isocyanate | |
680-31-9 | Hexamethylphosphoramide | |||
684-93-5 | N-Nitroso-N-Methylurea | |||
822-06-0 | 2281 | * | Hexamethylene-1,6-Diisocyanate | |
823-40-5 | 2,6-Diaminotoluene (Please see Diaminotoluene - Mixed Isomers) | |||
1120-71-4 | * | 1,3-Propane Sultone | ||
1163-19-5 | Decabromodiphenyl Oxide | |||
1304-56-9 | Beryllium Oxide (Please see Beryllium Compounds.) | |||
1306-23-6 | Cadmium Sulfide (Please see Cadmium and Cadmium Compounds.) | |||
1307-96-6 | Cobalt (II) Oxide (Please see Cobalt Compounds.) | |||
1309-64-4 | * | Antimony Trioxide (Please see Antimony Compounds.) | ||
1310-73-2 | 1823/1824 | Sodium Hydroxide | ||
1313-27-5 | Molybdenum Trioxide | |||
1314-13-2 | 1516 | Zinc Oxide (Please see Zinc Compounds.) | ||
1314-62-1 | Vanadium Pentoxide | |||
1319-77-3 | 2022/2076 | * ++ | Cresols / Cresylic Acid (Isomers and Mixture.) | |
1327-53-3 | Arsenic Trioxide (Please see Arsenic and Compounds.) | |||
1330-20-7 | 1307 | * ++ | Xylenes (Isomers and Mixture) | |
1332-21-4 | 2212/2590 | * | Asbestos | |
1333-86-4 | Carbon Black Extracts | |||
1336-36-3 | 2315 | * ++ | Polychlorinated Biphenyls (PCBs) | |
1582-09-8 | Trifluralin | |||
1634-04-4 | 2398 | * ++ | Methyl Tert-Butyl Ether (MTBE) | |
1746-01-6 | * | 2,3,7,8-Tetrachlorodibenzo-P-Dioxin (TCDD) (Please see Chlorinated Dioxins.) | ||
2795-39-3 | Perfluorooctanoic acid (PFOA) and its salts, esters, and sulfonates | |||
3268-87-9 | * | 1,2,3,4,6,7,8,9-Octachlorodibenzo-p-Dioxin | ||
3697-24-3 | * | 5-Methylchrysene | ||
4239-76-48 | * | 1,6-Dinitropyrene | ||
4239-76-59 | * | 1,8-Dinitropyrene | ||
5120-73-19 | * | 2,3,7,8-Tetrachlorodibenzofuran | ||
5522-43-0 | * | 1-Nitropyrene | ||
3333-67-3 | Nickel carbonate | |||
6484-52-2 | 0222/1942/2426 | ++ | Ammonium Nitrate | |
7429-90-5 | Aluminum and Compounds | |||
7439-92-1 | * | Lead and Compounds | ||
7439-96-5 | * | Manganese Compounds | ||
7439-97-6 | 2809 | * | Mercury Compounds | |
7440-02-0 | * | Nickel and Compounds | ||
7440-22-4 | Silver Compounds | |||
7440-36-0 | 2871 | * | Antimony Compounds | |
7440-38-2 | 1558 | * | Arsenic and Compounds | |
7440-39-3 | 1399/1400/1854 | ++ | Barium Compounds | |
7440-41-7 | 1566/1567 | * | Beryllium Compounds | |
7440-43-9 | 2570 | * | Cadmium and Cadmium Compounds | |
7440-47-3 | * | Chromium and Compounds | ||
7440-48-4 | * | Cobalt Compounds | ||
7440-50-8 | Copper Compounds | |||
7440-66-6 | 1383/1436 | ++ | Zinc Compounds | |
7446-34-6 | Selenium Monosulfide (Please see Selenium Compounds.) | |||
7446-71-9 | Sulfur Trioxide | |||
7487-94-7 | 1624 | ++ | Mercuric Chloride (Please see Mercury Compounds.) | |
7550-45-0 | 1838 | ++ | Titanium Tetrachloride | |
7553-56-2 | Iodine (Please see Radionuclides - Including Radon.) | |||
1175 | (7631-86-9) | Crystalline Silica (respirable) | ||
7647-01-0 | 1050/1789 | * | Hydrochloric Acid | |
7664-38-2 | 1805 | Phosphoric Acid | ||
7664-39-3 | 1052/1790 | * | Hydrogen Fluoride (Hydrofluoric Acid) | |
7664-41-7 | 1005/2073/2672 | Ammonia | ||
7664-93-9 | 1830/1831/1832 | Sulfuric Acid | ||
7697-37-2 | 1760/2031/2032 | Nitric Acid | ||
7723-14-0 | 1381 | * | Phosphorus | |
7726-95-6 | 1744 | Bromine Compounds (Inorganic) | ||
7758-01-2 | Potassium Bromate (Please see Bromine Compounds - Inorganic.) | |||
7758-98-7 | Copper Sulfate (Please see Copper Compounds.) | |||
7782-49-2 | 2658 | * | Selenium Compounds | |
7782-50-5 | 1017 | * | Chlorine | |
7783-06-4 | 1053 | Hydrogen Sulfide | ||
7783-07-5 | Htydrogen Selenide | |||
7783-20-2 | 2506 | ++ | Ammonium Sulfate | |
7784-42-1 | 2188 | * | Arsine (Please see Arsenic and Compounds.) | |
7789-30-2 | Bromine Pentafluoride | |||
7803-51-2 | 2199 | * | Phosphine | |
8001-35-2 | 2761 | Toxaphene (Chlorinated Camphene) | ||
8001-58-9 | 1136 | ++ | Creosotes, Coal Tar (Please see Creosotes.) | |
8014-95-7 | Oleum | |||
8018-01-7 | Mancozeb (Please see Manganese Compounds.) | |||
8021-39-4 | Creosotes, Wood (Please see Creosotes.) | |||
10035-10-6 | Hydrogen bromide | |||
10043-01-3 | 1760/9078 | ++ | Aluminum Sulfate (Please see Aluminum and Compounds.) | |
10043-92-2 | Radon (Please see Radionuclides - Including Radon) | |||
10049-04-4 | Chlorine Dioxide | |||
10124-36-4 | Cadmium Sulfate (Please see Cadmium and Cadmium Compounds.) | |||
13463-39-3 | 1259 | Nickel Carbonyl (Please see Nickel and Compounds.) | ||
13510-49-1 | Beryllium Sulfate(Please see Beryllium Compounds.) | |||
14464-46-1 | Cristobalite (Please see Crystalline Silica.) | |||
14808-60-7 | Quartz (Please see Crystalline Silica.) | |||
15468-32-3 | Tridymite (Please see Crystalline Silica.) | |||
18540-29-9 | * | Chromium VI (Please see Chromium and Compounds.) | ||
19408-74-3 | * | 1,2,3,7,8,9-Hexachlorodibenzo-p-Dioxin | ||
35822-46-9 | * | 1,2,3,4,6,7,8-Heptachlorodibenzo-p-Dioxin | ||
39001-02-0 | * | 1,2,3,4,6,7,8,9-Octachlorodibenzofuran | ||
39227-28-6 | * | 1,2,3,4,7,8-Hexachlorodibenzo-p-Dioxin | ||
40321-76-4 | * | 1,2,3,7,8-Pentachlorodibenzo-p-Dioxin | ||
55673-89-7 | * | 1,2,3,4,7,8,9-Heptachlorodibenzofuran | ||
57117-31-4 | * | 2,3,4,7,8-Pentachlorodibenzofuran | ||
57117-41-6 | * | 1,2,3,7,8-Pentachlorodibenzofuran | ||
57117-44-9 | * | 1,2,3,6,7,8-Hexachlorodibenzofuran | ||
57653-85-7 | * | 1,2,3,6,7,8-Hexachlorodibenzofuran | ||
60851-34-5 | * | 2,3,4,6,7,8-Hexachlorodibenzofuran | ||
67562-39-4 | * | 1,2,3,4,6,7,8-Heptachlorodibenzofuran | ||
70648-26-9 | * | 1,2,3,4,7,8-Hexachlorodibenzofuran | ||
72918-21-9 | * | 1,2,3,7,8,9-Hexachlorodibenzofuran | ||
20859-73-8 | Aluminum Phosphide (Please see Aluminum and Compounds.) | |||
22967-92-6 | Methyl Mercury (Please see Mercury Compounds.) | |||
25167-83-3 | Tetrachlorophenols | |||
25551-13-7 | Trimethylbenzenes | |||
26471-62-5 | Toluene diisocyanates | |||
31508-00-6 | 2,3',4,4',5-Pentachlorobiphenyl (PCB118) | |||
32598-13-3 | 3,3',4,4'-Tetrachlorobiphenyl (PCB 77) | |||
32598-14-4 | 2,3,3',4,4'-Pentachlorobiphenyl (PCB 105) | |||
32774-16-6 | 3,3',4,4',5,5'-Hexachlorobiphenyl (PCB 169) | |||
38380-08-4 | 2,3,3',4,4',5-Hexachlorobiphenyl (PCB 156) | |||
39635-31-9 | 2,3,3',4,4',5,5'-Heptachlorobiphenyl (PCB 189) | |||
52663-72-6 | 2,3',4,4',5,5'-Hexachlorobiphenyl (PCB 167) | |||
57465-28-8 | 3,3',4,4',5-Pentachlorobiphenyl (PCB 126) | |||
57835-92-4 | * | 4-Nitropyrene | ||
65510-44-3 | 2,3',4,4',5'-Pentachlorobiphenyl (PCB 123) | |||
69782-90-7 | 2,3,3',4,4',5'-Hexachlorobiphenyl (PCB 157) | |||
70362-50-4 | 3,4,4',5-Tetrachlorobiphenyl (PCB81) | |||
74472-37-0 | 2,3,4,4',5-Pentachlorobiphenyl (PCB 114) | |||
N/A | * | Chlorinated Dibenzofurans (Please see Chlorinated Dioxins.) | ||
N/A | * | Chlorinated Dioxins | ||
| 1060 | Chlorophenols | |||
| 1066 | Coke Oven Emissions | |||
| 1070 | Creosotes | |||
| 1075 | Dialkylnitrosamines | |||
| 1078 | Diaminotoluene (Mixed Isomers) | |||
| 1090 | Environmental Tobacco Smoke | |||
| 1135 | Fine Mineral Fibers | |||
| 1110 | Gasoline Vapors | |||
N/A | Glycol Ethers | |||
N/A | * | Inorganic Arsenic (Please see Arsenic and Compounds.) | ||
| 1128 | * | Inorganic Lead (Please see Lead and Compounds.) | ||
| 1165 | Radionuclides (Including Radon) | |||
| 2222 | Polybrominated diphenylethers (PBDEs) | |||
| 9901 | * | Diesel Exhaust Particulate Matter (Diesel PM) | ||
| Polycyclic Organic Matter (POM) |
+ | Department of Transportation (DOT) identification number indicates that the chemical is regulated by DOT. This information was found in the NIOSH Pocket Guide to Chemical Hazards (June 1994). |
++ | Department of Transportation (DOT) identification number found in Dangerous Properties of Industrial Materials, seventh edition, 1989, Sax. |
* | Substances which have already been identified by the Board as toxic air contaminants and which have potency numbers developed by the Office of Environmental Health Hazard Assessment and approved by the Scientific Review Panel. |
Toxic Air Contaminant (TAC) Indentification Program
There is currently no CARB-approved test method for acrolein from stationary sources. Until more is known about acrolein emissions, local air districts must determine on a case-by-case basis how they will implement their toxics programs.
On April 28, 2000, the ARB sent an advisory to the local air districts titled "Advisories to Limit Use of ARB Method (M430) Determination of Formaldehyde and Acetaldehyde in Emissions From Stationary Sources" which read:
Method 430 (M430) was last amended on December 13, 1991, by the Air Resources Board (ARB). M430 is based on collecting samples with impingers containing DNPH and analyzing the samples by HPLC. The method was developed to determine formaldehyde and acetaldehyde from stationary sources. In the intervening years, many studies have contributed to ARB staff's knowledge of aldehyde sampling and analysis. Unfortunately, all new information about M430 limits its applicability strictly to formaldehyde and acetaldehyde under certain conditions. Until an improved test method is identified, ARB has developed the following advisories warning against misuse of M430.
Advisories
First Advisory: Do not use M430 for the determination of any aldehyde(s) other than formaldehyde and acetaldehyde; especially, do not use M430 for the determination of acrolein.
Second Advisory: Any data or results, based on the use of M430 to determine acrolein, or aldehyde(s) other than formaldehyde and acetaldehyde, are suspect and should be flagged as non-quantitative wherever they appear.
Third Advisory: Any data or results, based on the use of M430 to determine formaldehyde and acetaldehyde in emissions containing over 50pmvd (parts per million volume dry) of oxides of nitrogen (NOx), are suspect and should be flagged as non-quantitative whenever they appear.
Background for the First Advisory: M430 has always been clear in its stated limitations regarding applicability. The statement of applicability limits its application to determination of formaldehyde and acetaldehyde in emissions from stationary sources. Nevertheless, statutory requirements for acrolein testing of emissions from stationary sources have led to the use of M430 for acrolein. ARB staff has warned against the use of M430 whenever contacted regarding such testing.
The technical limitation for M430 and acrolein involves the strong acid in the sampling train. Acrolein has a double bond that is rapidly degraded by acid. This leads to underestimation of the acrolein emissions. A partial "fix" for this problem was published as a circular by Air Toxics LTD. It involves mixing the sample with a strong organic solvent to pull the acrolein out of the acid, limiting the degradation of acrolein. This is to be done as soon as possible after sampling.
After further work, Air Toxics LTD. published a more comprehensive treatment of M430 problems with acrolein. According to their research, after 30 minutes in the sampling acid more than 60% of the sampled acrolein is lost. After one hour, 70% is gone. This is bad news since the typical sampling time is one hour. Based on this study, M430 cannot be used to determine acrolein.
Background for the Second Advisory: The preceding background for the first advisory casts serious doubt on any date or results using M430 for anything but the determination of formaldehyde or acetaldehyde. For example, the degree of acrolein degradation is not always 60% at 30 minutes, but varies from test to test unpredictably. An example of a set of results rendered void by the second advisory is the large M430 acrolein database compiled per the California "Toxic Hot Spots Act".
Background for the Third Advisory: The sampling acid in M430 is charged with a complexing agent before each test. The agent combines with aldehydes to prepare them for detection at the laboratory. If this combination does not occur, the formaldehyde or acetaldehyde cannot be quantified.
The complexing agent also combines with NOx. Any such NOx-agent combinations prevent aldehyde-combinations with that complexing agent. With enough NOx combinations, there will not be enough complexing agents for aldehyde quantification at the laboratory. For typical M430 sampling trains, this problem for aldehyde quantification occurs when the NOx concentration is 50ppmvd or higher.
There is currently no ARB-approved test method for acrolein from stationary sources. Until more is known about acrolein emissions, local air districts must determine on a case-by-case basis how they will implement their toxics programs. Additional information, including a research report that describes what we do know about the existing test methods, and details about ambient acrolein measurements, is provided below.
Ambient Data
ARB's ambient acrolein monitoring data, and test methods;
U.S. EPA's ambient method for aldehydes: TO-5
Additional Acrolein Information on Test Methods in Development
ARB's Acrolein Research Report - MSWord (124k)
Data summary - PDF
Draft Modified Stationary Source Test Method CARB 430 - MSWord (38k)
Ashland - Lawn Mower Emissions with Modified M430 - MSWord (2,309k)
Sucha Parmar - Retention Study of Acrolein with M430 Paper #1 - Paper #2
Japanese paper - hydroxylamine derivatization ( MSWord 108k)
ARB Test Method 430
Emission Inventory
Overview