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EPA’s Pacific Southwest (Region 9) implements and enforces federal environmental laws in Arizona, California, Hawaii, Nevada, the Pacific Islands, and 148 Tribal Nations.

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US EPA, Pacific Southwest, Region 9
Office of Public Affairs
75 Hawthorne St.
San Francisco, CA 94105

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Pacific Southwest Media Center

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    • Protecting Children from Wildfire Smoke
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Last updated on April 1, 2025
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