This Independence Day, Air District officials remind Valley residents that fireworks can increase levels of dangerous particulate matter, including soot, ash and metals, which cause serious health impacts. Individuals most at risk are small children, the elderly and people with existing respiratory conditions.

“Fireworks can cause pollution levels to rise significantly making the air dangerous for everyone to breathe,” said Samir Sheikh, the Valley Air District’s Executive Director/Air Pollution Control Officer. “The harmful effects from the use of personal fireworks can be avoided by supporting local professional Independence Day celebrations.”

Fine particulate matter can invade the bloodstream, get deep into the lungs and has been linked to heart attacks and stroke.

Each year on the Fourth of July, air monitors across the Valley reflect spikes in PM concentrations, often four to five times higher than the health-based federal standards, and typically occur between the hours of 9 and 10 p.m. These spikes are due in part to personal fireworks used throughout Valley neighborhoods and the high levels of PM threaten the Valley’s progress in meeting air-quality standards that protect public health.