Natural (Non-Anthropogenic) Source Methodologies Contacto Emission Inventory Correo electrónico eibweb@arb.ca.gov Teléfono (916) 445-2199 Area Source CategoriesGeogenic SourcesAgencyPetroleum Seeps - Oil & GasCARBSoil NOx and NH3CARBWildfiresAgencyWildfires - All CategoriesCARBWildland Fire Use (WFU) FiresCARB