A warning for an increased risk of respiratory problems has been issued in three Central Valley counties Wednesday.

Due to a strong, low pressure system off the northern California coast, winds are expected to blow around dust, “creating unhealthy concentrations of particulate matter 10 microns and smaller (PM10),” according to the San Joaquin Valley Air Pollution Control District.

The counties affected: Tulare, Kings, and the valley air basin portion of Kern counties.

According to the district, exposure can cause serious health problems, aggravate lung disease, trigger asthma attacks, bronchitis and increase risk of respiratory infections.

As a suggestion, the district states:

“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.”

For more information, visit www.valleyair.org or call a district office in Fresno 559-230-6000, Modesto 209-557-6400 or Bakersfield 661-392-5500.