What other harmful substances are released besides particulate matter?

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Other Harmful Substances Released by Fireworks

Beyond particulate matter, the combustion of fireworks releases harmful volatile organic compounds (VOCs) and trace metals. These substances contribute to air pollution and can have adverse effects on human health and the environment.
Volatile Organic Compounds

Fireworks emit a range of volatile organic compounds when they burn. VOCs are carbon-containing chemicals that easily become gases or vapors at room temperature. When inhaled, these compounds can contribute to respiratory problems and other health issues. For instance, some VOCs are known irritants to the eyes, nose, and throat, while others can cause headaches, nausea, and damage to the liver, kidneys, and central nervous system. Long-term exposure to certain VOCs has also been linked to an increased risk of cancer.
Trace Metals and Their Colors

The vibrant colors observed in fireworks displays are produced by trace metals that are heated to high temperatures. For example, strontium salts are used to create red hues, barium salts produce green, copper salts yield blue, and titanium or aluminum can create white sparks. While these metals are essential for the visual spectacle, their release into the atmosphere during fireworks displays contributes to metal pollution. The long-term environmental impact of these deposited metals in soil and water bodies is a growing concern, potentially affecting ecosystems and water quality.
Perchlorate in Waterways

Perchlorate, an oxidizing agent commonly used in fireworks to enhance their explosive power and color intensity, has also been identified as a significant environmental contaminant. Studies, such as a 2016 US government investigation near Mount Rushmore National Memorial, have found perchlorate migrating into groundwater and surface water sources following annual July 4th fireworks shows. Perchlorate can interfere with thyroid function in humans and animals, impacting metabolism and development.

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What other harmful substances are released besides particulate matter?

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