The forecast of 110 degrees and higher peak temperatures has prompted an Ozone Health Watch for the Valley.
The watch was issued Wednesday and extends through Thursday, but the combination of warm weather and excessive sunlight could potentially add more days to the advisory.
Timothy Franquist with the Arizona Department of Environmental Quality said the best thing to help reduce pollution is to avoid excess car emissions.
“Any kind of fossil fuel burning during days like this, where we have a lot of sunlight and a lot of heat, any kind of fossil fuel combustion is bad,” Franquist said.
He said that means avoiding the drive-thru line at fast food restaurants.
People most affected are those with preexisting heart and lung conditions.
If air quality conditions continue to disintegrate, a high pollution advisory could be implemented.
