The San Fernando Valley saw bad air quality Monday morning as a small brush fire burned in the Hansen Dam area.
Air quality in other parts of Los Angeles County, including the San Gabriel Valley and the coastal communities of L.A. County, were also recorded at levels unsafe for sensitive groups due to higher levels of fine particles in the air, according to the South Coast Air Quality Management District’s map.
The particles, 30 times thinner than a strand of hair, can travel into the respiratory tract and reach the lungs.
Those with heart or lung disease, older adults and children were advised to reduce prolonged or heavy exertion and try to avoid the outdoors, according to health officials.
Exposure to the particles can cause eye, nose, throat and lung irritation, and symptoms can include coughing, sneezing, a runny nose and shortness of…