APCD officials are expecting northwesterly gusty winds across the entire San Joaquin Valley Friday afternoon, September 30, through Monday, October 30, 2016. They expect that the winds will generate more blowing dust that will contain potentially unhealthy levels of particulate matter 10 microns and smaller (PM10).
The winds will be resulting from an expected cold front accompanying a low pressure area moving in and out of the Valley as a high pressure system builds behind it.
Exposure to PM10 pollution can cause serious health problems, including asthma attacks, bronchitis,and aggravate those with lung or heart diseases, as well as increasing the risk for respiratory infections.
