Environment
Background: Fireworks in LGU Celebrations
By: Raymond J. Sucgang
Severalย local government units (LGU’s) often include fireworks displays in events like the opening of Christmas lights, town fiestas, or New Year celebrations. These spectacles are intended to foster communal enjoyment and civic pride. However, from an environmental and public health standpoint, such displays generate significant air pollution that is frequently overlooked in planning and regulation.
II. Chemistry of Fireworks Emissions
1. Combustion of Pyrotechnic Compounds
Fireworks are essentially controlled explosions of solid mixtures composed of:
Oxidizers (e.g., perchlorates, potassium nitrate)
Fuel and binders
Colorants (metal salts like strontium, barium, copper)
Propellants and stabilizers
When ignited, combustion occurs:
Fuel+OxidizerโEnergy (heat + light)+Gases+ParticulatesFuel+OxidizerโEnergy (heat + light)+Gases+Particulates
This reaction produces a cocktail of pollutants rather than โjust light and sound.โ Irene+1
III. Air Pollutants Produced
1. Particulate Matter (PM)
The most concerning emissions are particulate matter:
PMโ.โ
(particles โค2.5 ยตm)
PMโโ (particles โค10 ยตm)
These fine and ultrafine particles penetrate deeply into the lungs and even enter the bloodstream, causing systemic health effects. Irene+1
2. Gaseous Pollutants
Combustion also releases:
Sulfur dioxide (SOโ)
Nitrogen oxides (NOโ)
Carbon monoxide (CO)
These gases contribute to smog formation, acid rain, and respiratory irritation. Irene+1
3. Heavy Metals and Trace Elements
Metal salts used for colors (e.g., barium for green, strontium for red, copper for blue) become airborne:
Barium (Ba)
Strontium (Sr)
Copper (Cu)
Lead (Pb) (in some products)
These elemental constituents can persist in air and deposit on soils and water bodies, where they accumulate in ecosystems. Irene+1
4. Perchlorates
Perchlorate compounds used as oxidizers can disrupt thyroid function by interfering with iodine uptake, potentially affecting development and metabolism. Irene
IV. Air Quality and Exposure Evidence
1. Spikes in Particulate Matter
Studies show dramatic increases in air pollution during firework events:
PM levels can rise several times above background levels in urban areas during and after displays. iqair.cn
This means a short fireworks display can make the local air temporary but intensely polluted, especially in already crowded cities.
2. Persistent Air Quality Degradation
Particulate and gaseous pollutants can linger for hours or days, depending on weather conditions like wind and humidity, prolonging exposure. iqair.cn
V. Health Hazards from Firework Pollution
1. Respiratory Effects
Exposure to high levels of PMโ.โ
and gases like NOโ and SOโ is linked with:
Asthma attacks
Bronchitis
Worsening COPD
Respiratory infections gov.scot+1
Children, the elderly, and people with pre-existing conditions are especially vulnerable.
2. Cardiovascular Stress
Fine particles can enter the bloodstream, promoting inflammation, increasing risk of heart attacks, arrhythmias, and stroke. Irene
3. Toxic Metal Exposure
Heavy metals like lead and cadmium are neurotoxic and can accumulate in body tissues, leading to chronic health issues over time. lung.org
4. Other Effects
Perchlorates can disrupt thyroid hormones, which are critical for metabolism and development. Irene
VI. Critique of Current LGU Practices
1. Lack of Environmental Consideration
Many LGUs prioritize spectacle over environmental health, failing to:
assess air quality impacts
provide warnings to vulnerable populations
consider alternative, cleaner celebration methods
2. Public Misperception
Thereโs a common perception that fireworks are harmless entertainment; in reality, they are significant sources of acute air pollution spikes, on par with heavy traffic emissions in some cases. iqair.cn
3. Regulatory Gaps
Even in some developed settings with monitoring systems, regulations often do not limit or track the air pollution impacts of fireworks tied to local celebrations.
VII. Alternatives and Recommendations
Instead of traditional pyrotechnics, LGUs can consider:
Drone light shows
Laser displays
Silent fireworks
These options can dramatically reduce emissions of PM and toxic metals while still providing visual celebration.
Environmental and health advocates increasingly recommend minimizing or altogether avoiding traditional fireworks to protect public health and air quality. ScienceDaily
VIII. Conclusion
While fireworks are a culturally entrenched form of celebration, their chemical byproducts significantly degrade air quality and pose real risks to human health and the environment. Decision-makers in LGUs should weigh short-lived spectacle against measurable harm, and shift toward safer, cleaner celebration alternatives that protect community welfare.
References
All points are supported by scientific studies and environmental analyses, including assessments of particulate matter, gases, heavy metals, and documented health impacts from firework pollution.
