Fireworks Impact Air Quality
Each year we celebrate our national birthday with colorful bursts of black powder—fireworks which ignite around American neighborhoods on the Fourth of July.
These pyrotechnical displays provide brilliant light shows each Independence Day, but they also cause spikes in air pollution levels that may be hazardous to the health of individuals. The Olympic Region Clean Air Agency (ORCAA) has noticed elevated levels of fine particulate matter (PM2.5) air pollution at many of its monitoring stations during previous Independence Days. In some cases, levels at the monitoring sites reached Moderate Air Quality for more than a full day after the Fourth.