Fireworks Smoke Can Pose Hidden Health Risks

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As communities prepare for upcoming fireworks displays, Public Health is urging residents to be aware of the short-term but significant air quality impacts caused by fireworks smoke and a pollutant known as PM 2.5.
What is PM 2.5?
PM 2.5 refers to particulate matter that measures 2.5 micrometers or smaller in diameter. These particles are so small that thousands could fit on the period at the end of a sentence. Common sources include soot, dust, and smoke, and their tiny size allows them to penetrate deep into the lungs and even enter the bloodstream.
During and after fireworks displays, PM 2.5 levels can spike dramatically. For a few hours after fireworks displays on holidays such as Independence Day, PM 2.5 concentrations often reach two to five times higher than federal health-based standards. Since there are fireworks displays scheduled for July 3rd and 4th this year, higher PM 2.5 concentrations could happen on both days. 
“These spikes may be brief, but they are intense,” said Eileen Moran, Regional Air Pollution Agency (RAPCA) Senior Manager. “Breathing smoke from fireworks can irritate the lungs, trigger asthma attacks and worsen conditions like COPD. It can also increase the risk of heart attacks and strokes, particularly in individuals with heart or lung conditions.”
More Than Just Smoke
Fireworks emissions are not limited to simple dust or smoke. The colorful displays rely on a range of toxic trace metals, including strontium, barium, and copper, as well as gases like sulfur dioxide and nitrogen oxides. These compounds contribute to the vivid colors and explosive effects but also pose additional health concerns when inhaled.
Lingering Effects
While fireworks displays may last only minutes, the resulting pollution can linger. Elevated PM 2.5 levels often remain in the local atmosphere for several hours, sometimes taking until midday the following day to fully dissipate.
How to Protect Yourself
Residents can take simple steps to reduce exposure to harmful air pollutants during and after fireworks events:
  • Check the Air: Monitor real-time air quality conditions at AirNow.gov before spending time outdoors.
  • Seal Your Home: Keep windows and doors closed, especially if you live near a fireworks venue.
  • Filter Your Air: Use an indoor air purifier equipped with a HEPA filter to capture fine particles.
  • Maintain Distance: When attending displays, stay as far away as possible and try to position yourself upwind of the smoke.
Public Health emphasizes that children, older adults, and individuals with heart or lung conditions should take extra precautions during high-exposure periods.
For more information on air quality and health, visit www.rapca.org or www.AirNow.gov.