Summary of the Dixie, Monument and Caldor California Fires and Air Pollution

Update, August 30.

California’s three largest fires are currently the Dixie, Monument, and Caldor fires in Northern California.  The data is from CalFire at fire.ca.gov.

The Dixie fire is 771,000 acres, or 1,200 square miles, and is 48% contained.

The Monument fire is 165,000 acres, or 258 square miles, and is 29% contained.

The Caldor fire is now second largest, at 177,000 acres, or 277 square miles, and is only 14% contained.  It is vicious, having destroyed 472 and damaged 39 structures.  30,000 residents of East Dorado county had already been evacuated, and now 22,000 more were evacuated from South Lake Tahoe.  It is being fought by 3,684 personnel, 353 engines, 25 helicopters, 77 dozers, and 78 water tenders.

The Dixie fire has destroyed 1,273 structures and damaged 92 more.  It is being fought by 4,833 personnel and 73 crews, with 370 engines, 172 dozers, 167 water tenders, and 21 helicopters.

Maps are still from August 26.

This is a map of the Dixie fire between Redding and Reno:

 

This is a map of the Monument fire on the left and the Caldor fire on the right, both South of Lake Tahoe.

This is the PurpleAir map of air pollution at PurpleAir.com for the Lake Tahoe area:

 

The Lake Tahoe fires have bad air approaching 650 of PM2.5 parts per million of particles of 2.5 nanometers.  200 parts per million is already very unhealthy.

The Dixie fire is in the North producing severe air quality up to 400 parts per million of PM2.5.

 

About Dennis SILVERMAN

I am a retired Professor of Physics and Astronomy at U C Irvine. For two decades I have been active in learning about energy and the environment, and in reporting on those topics for a decade. For the last four years I have added science policy. Lately, I have been reporting on the Covid-19 pandemic of our times.
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