Mariposa County, CA Home of Yosemite

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Health Department


Mission Statement: To protect and promote the health, safety, and environment of the community by preventing and controlling diseases, environmental hazards, injury and disability, and by educating and promoting healthier lifestyles.



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For the most recent Air Quality Index information visit:

Mariposa County Air Quality Index 

Those with medical conditions which are made worse by smoke should either shelter inside
or consider leaving the areas that have the densest smoke.
Everyone should avoid strenuous activity during the worst parts of the day.


AQI Definitions


Community Health

Environmental Health

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5100 Bullion St.  |  Mariposa, CA 95338  |  Telephone Numbers