Air Pollution Control District


A Joint Message on Wildfire Smoke Impacts from the Tuolumne County Public Health Department and the Air Pollution Control District

Sonora, Calif. - Tuolumne County as with many counties in California are experiencing or may experience moderate to poor air quality due to the many wildfires throughout the state.  The Tuolumne County Public Health Department and the Air Pollution Control District would like to remind the public that wildfire smoke can be hazardous to a person’s health.  While all people may experience varying degrees of symptoms due to exposure, the health risk to an individual depends on age, health status, and length of exposure.  For the young and elderly or those with underlying health conditions, it is imperative that measures be taken to minimize your exposure to wildfire smoke. Anyone experiencing serious symptoms should contact their health care provider or the emergency department.

The following are recommendations to reduce your exposure to smoke:

  • If you can see or smell smoke, limit all unnecessary outdoor activities;
  • Stay indoors, closing all windows and doors and use the air conditioner on the recirculation setting;
  • Limit even indoor physical activities:
  • Keep in mind that healthy individuals can be negatively impacted by the pollutants from smoke;
  • Wearing a mask indoors is not considered adequate protection for smoke related impacts;
  • Smoking, using the vacuum, fireplace, or candles are not advised due to the buildup of particulate matter from these activities; and
  • Check on your loved ones and neighbors;

For more information, visit

You can also contact the Tuolumne County Public Health Department at 533-7401, or the Air Pollution Control District at 533-5691, or visit our websites:

Mountain County Air Basin TAC Meeting

County of Tuolumne Reduction of Non-Essential Services in Response to Coronavirus Covid-19.
See Main Page-News Flash for updates.

In response to the Governor’s March 19th executive order, which included a state wide “stay at home” order, Tuolumne County is making reductions to non-essential services to limit the potential exposure for staff and the public to COVID-19. These changes will go into full effect Monday March 23, 2020.

If you need assistance contact the office
@ 209-533-5693  8-1 pm

Fill out your applications now for
woodstove replacement vouchers!
$110,000 Woodsmoke Reduction Program

The  Air Pollution Control District is pleased to announce a Woodsmoke Reduction Program designed to help Tuolumne County households replace non EPA-certified wood burning stoves, fireplace inserts, or open hearth fireplaces, used as a primary source of heat, with a cleaner burning and more efficient heating alternative. 

Voucher Application: