Natural (Non-Anthropogenic) Source Methodologies Contacto Correo electrónico charanya.varadarajan@arb.ca.gov Teléfono (279) 208-7320 Area Source CategoriesGeogenic SourcesAgencyPetroleum Seeps - Oil & GasCARBSoil NOx and NH3CARBWildfiresAgencyWildfires - All CategoriesCARBWildland Fire Use (WFU) FiresCARB