Resources Agency Building
Auditorium, First Floor
1416 Ninth Street
Sacramento, CA

March 28, 1986
8:30 a.m.



86-4-1 Public Hearing to Consider the Adoption of a 001
Regulatory Amendment Identifying Asbestos as a
Toxic Air Contaminant.

86-4-2 Presentations and Discussion on Risk Management 543
of Toxic Air Contaminants.

Other Business

a. Closed Session
1. Personnel (as authorized by State Agency Open Meeting
Act, Govt. Code Sec. 11126(a).)
2. Litigation (Pursuant to the attorney-client privilege,
Evidence Code Sec. 950-962, and Govt. Code Sec.

b. Research Proposals
c. Delegations to Executive Officer

ITEM NO.: 86-4-1

Proposed Identification of Asbestos as a Toxic Air Contaminant


The ARB staff recommends that asbestos (in the following forms:
chrysotile, actinolite, amosite, anthophyllite, crocidolite, and
tremolite) be identified as a toxic air contaminant for which
there is not sufficient available scientific evidence to support
the identification of an exposure level below which carcinogenic
effects would not occur.


In accordance with the provisions of Health and Safety Code
Section 39650 et seq., the ARB staff, after consulting the
Department of Health Services (DHS) selected asbestos for the
Board's consideration for listing as a toxic air contaminant.
The staff selected asbestos because it has been identified by the
International Agency for Research on Cancer as a human
carcinogen, it is emitted from many sources in the state, and its
presence in the ambient air is documented. Asbestos has also
been listed as a hazardous air pollutant by the U.S.
Environmental Protection Agency (EPA). Health and Safety Code
Section 39655 specifies that substances identified by EPA as
hazardous air pollutants (Section 112 of the Clean Air Act) shall
be identified as toxic air contaminants by ARB.

As required by Health and Safety Code Section 39661, a report was
prepared jointly by DHS and ARB staff reviewing the health
effects and anticipated exposure levels of asbestos. The report
was submitted to the Scientific Review Panel recommended that the
Air Resources Board list asbestos by regulation as a toxic air
contaminant, but was unable to recommend an exposure level below
which carcinogenic effects would not occur.


The identification of asbestos as a toxic air contaminant will
not in itself have any environmental or economic impacts.
However, specific control measures may be developed subsequent to
identification. Analysis of potential environmental and economic
impacts will be included in the consideration of such control