This map was created using Google Maps API v3 by Eric Burton and Dustin Goto, Air Resources Board

Add or Remove Boundaries: County Boundaries Air Basin Boundaries Air District Boundaries

Zoom to an area: Browse by County: --Select a County-- Alameda Alpine Amador Butte Calaveras Colusa Contra Costa Del Norte El Dorado Fresno Glenn Humbolt Imperial Inyo Kern Kings Lake Lassen Los Angeles Madera Marin Mariposa Mendocino Merced Modoc Mono Monterey Napa Nevada Orange Placer Plumas Riverside Sacramento San Diego San Francisco San Joaquin Santa Barbara San Benito San Bernardino San Luis Obispo San Mateo Santa Clara Santa Cruz Sierra Siskiyou Shasta Solano Sonoma Stanislaus Sutter Trinity Tehama Tulare Tuolumne Ventura Yolo Yuba Browse by Air Basin: --Select a Basin-- Great Basin Valleys Lake County Lake Tahoe Mojave Desert Mountain Counties North Central Coast North Coast Northeast Plateau Sacramento Valley Salton Sea San Diego San Francisco Bay Area San Joaquin Valley South Central Coast South Coast Browse by Operating District: --Select a District-- Amador Antelope Valley Butte Calaveras Colusa El Dorado Feather River Glenn Great Basin Unified Imperial Eastern Kern Lassen Lake Mariposa Mendocino Modoc Mojave Desert Monterey Bay Unified North Coast Unified Northern Sierra Northern Sonoma Placer Sacramento Metro San Diego San Francisco Bay Area San Joaquin Valley Unified San Luis Obispo Santa Barbara Shasta Siskiyou South Coast Tehama Tuolumne Ventura Yolo-Solano

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