Gusty winds will cause localized blowing dust, which can result in unhealthy concentrations of particulate matter 10 microns and smaller (PM10).

Local air pollution officials are issuing a health cautionary statement effective Thursday afternoon through Friday in the entire San Joaquin Valley.

Exposure to particulate pollution can cause serious health problems, aggravate lung disease, trigger asthma attacks and bronchitis, and increase risk of respiratory infections.

Where conditions warrant, people with heart or lung disease should follow their doctors’ advice for dealing with episodes of particulate exposure.

Additionally, older adults and children should avoid prolonged exposure or heavy exertion, depending on their local conditions.