Kiera Jefferson
Diwali, also known as Deepavali, is a festival of lights celebrated across India. The festival has become a source of air and noise pollution, with firecrackers and sparklers contributing to a significant increase in air pollutants and toxic gases. This paragraph will explore the different types of pollution that occur during Diwali and their impacts on the environment and human health.
| Characteristics | Values |
|---|---|
| Particulate matter | PM2.5, PM10 |
| Gases | SO2, NO2, NH3, NO, CO, ethyl-benzene |
| Metals | Zn, Al, Pb, Mn, K, Ba, Sr, Cu, Fe, Mg |
| Water-soluble anions | SO42-, Cl-, NO3- |
| Other | Phthalate groups, VOCs, SB emissions |
| Locations | Delhi, Mumbai, Kolkata, Bhavnagar, Indo-Gangetic Plains |
| Years | 2013, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 |
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What You'll Learn
Firecrackers and air pollution
Diwali, also known as Deepavali, is a festival of lights celebrated by Hindus during the post-monsoon months of October and November. The date of the festival varies according to the Hindu lunisolar calendar. The burning of firecrackers is a traditional part of Diwali celebrations, but it has been associated with air pollution in several cities across India.
A study conducted in 71 stations across 15 states in India from 2019 to 2022 revealed a short-term deterioration in air quality with long-lasting impacts due to the extensive use of firecrackers during Diwali. The levels of PM2.5 and PM10 were found to significantly increase during and after the festival compared to the pre-Diwali period. The concentration of these fine particulate pollutants in the air rose by up to 100% in just five hours after the start of Diwali celebrations.
The burning of firecrackers releases toxic substances into the atmosphere, including sulphur nitrates, magnesium, aluminium, paper, and other materials. These toxic substances can have detrimental effects on human health and the environment. A study in the Indian city of Jamshedpur found significantly increased levels of hazardous substances during the Diwali period. The Indian government's Central Pollution Control Board has identified 15 substances in fireworks that are "hazardous and toxic".
Several Indian states have banned the sale and use of fireworks during Diwali, but enforcement of these bans has been weak. The impact of firecracker emissions on air quality has been analysed in several cities, including Mumbai, Delhi, Kolkata, and Bhavnagar. These cities have consistently ranked among the most polluted in India, and the burning of firecrackers during Diwali further deteriorates the ambient air quality.
In summary, the burning of firecrackers during Diwali significantly contributes to air pollution in India. The release of toxic substances and fine particulate matter leads to a deterioration of air quality with potential long-term impacts on human health and the environment. Strict enforcement of regulations on firecracker usage during Diwali is necessary to mitigate the pollution levels and associated health risks.
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Firework emissions
Diwali, also known as the Festival of Lights, is celebrated by lighting lamps and burning firecrackers. However, the burning of firecrackers has been associated with severe air pollution. The use of fireworks in densely populated regions significantly deteriorates the ambient air quality.
Fireworks contain toxic substances, and research has found increased levels of hazardous and toxic substances during the Diwali period. A study conducted in the Indian city of Jamshedpur revealed a significant increase in the levels of several harmful substances during Diwali. The Indian government's Central Pollution Control Board lists 15 toxic substances in fireworks, and several states have banned their sale and use during Diwali celebrations. However, enforcement of these bans has been weak.
The burning of firecrackers during Diwali leads to an increase in particulate matter (PM) in the air, particularly PM2.5 and PM10. These fine particles can be inhaled and are harmful to human health. Studies have shown that the concentration of PM2.5 particles increases during and after the Diwali period, with levels rising by almost 40% by the second day of the festival. The highest hourly PM2.5 concentration was found to be above 900 μg/m3 in 2017 in Delhi.
In addition to PM2.5, firework emissions also release other pollutants such as sulfur dioxide (SO2), nitrogen oxides (NOx), ammonia (NH3), and ethyl-benzene. These emissions have been found to have long-range transport, impacting air quality even outside the immediate vicinity of firework displays. The combined effect of firework emissions and stubble burning has been shown to result in elevated pollution levels for several days after Diwali.
The impact of firework emissions on air quality during Diwali has been studied in several Indian cities, including Delhi, Mumbai, and Kolkata. These cities are already among the most polluted in the world, and Diwali celebrations further aggravate the problem. The increase in vehicle traffic during Diwali, as people travel to visit family and friends, also contributes to the overall pollution levels.
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Vehicle pollution
Diwali is a festival of lights, celebrated across India. It is a mega-event that takes place in the post-monsoon months of October or November. The date varies according to the Hindu lunisolar calendar.
The festival is a source of noise and air pollution, with firecrackers and sparklers contributing to a significant amount of particulate matter and toxic gases being released into the atmosphere.
A study conducted in the Indian city of Jamshedpur found increased levels of toxic substances during the Diwali period, including substances that are also produced by vehicle emissions.
The Indian government has implemented measures to address air pollution, such as restricting cars on roads on certain days, as seen with the "odd-even rule" in Delhi. However, enforcement of bans and restrictions related to Diwali celebrations has been weak, and the festival continues to be a significant contributor to air pollution in India.
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Noise pollution
Diwali is a festival of lights, celebrated by Hindus across India. It is a highly anticipated festival, celebrated with lights, firecrackers, sparklers, and sweets. However, the extensive use of firecrackers during the festival has been a major cause of concern for environmentalists and health professionals. While air pollution due to firecrackers has been a well-known issue, noise pollution is another concern that has gained attention in recent years.
The noise from firecrackers can lead to hearing problems, sleep disturbances, and stress-related issues. Prolonged exposure to high noise levels can cause temporary or permanent hearing loss, tinnitus (ringing in the ears), and hyperacusis (increased sensitivity to sound). It can also disrupt sleep patterns, leading to fatigue, irritability, and decreased productivity. Additionally, the sudden loud noises from firecrackers can startle people, causing stress and anxiety, especially in individuals with pre-existing mental health conditions.
The impact of noise pollution during Diwali can vary depending on the duration and intensity of firecracker usage. The continuous bursting of firecrackers over multiple days can lead to cumulative effects, exacerbating the negative consequences. Additionally, the noise levels can be particularly high in densely populated areas, where the sound reflects off buildings and surfaces, creating a louder and more prolonged noise experience.
To mitigate the impact of noise pollution during Diwali, several measures can be implemented. These include raising awareness about the harmful effects of noise pollution, encouraging the use of quieter and less harmful alternatives to firecrackers, implementing noise regulations and restrictions, and providing educational programs to promote a more sustainable and environmentally friendly way of celebrating the festival. By taking these steps, we can work towards reducing the negative impact of noise pollution on both human health and the environment during Diwali.
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Water pollution
The use of disposable items during Diwali celebrations also contributes to water pollution. Decorations, packaging for sweets, and wrapping paper for gifts are often made from non-biodegradable materials, which eventually end up in landfills or clog waterways. The accumulation of plastic waste in water bodies can have detrimental effects on the aquatic ecosystem, including the entrapment and ingestion of plastic by marine organisms, leading to their injury or death.
In addition to the direct pollution caused by idols and disposable items, the increased use of fireworks during Diwali celebrations can also indirectly impact water quality. The debris and residue from fireworks, which contain toxic substances like sulphur nitrates, magnesium, and aluminium, can make their way into water bodies through runoff or wind. These contaminants can affect the health of aquatic organisms and disrupt the natural balance of the ecosystem.
One notable example of water pollution during Diwali is the contamination of the Yamuna River in Delhi, India. In the days leading up to Diwali in 2024, the river's toxicity reached critical levels, disrupting the water supply across various regions of the city. The high ammonia levels in the river, exceeding 1.5 ppm (parts per million), presented substantial treatment challenges, leading to a significant reduction in the operational capacity of water treatment plants. This, in turn, affected the availability of clean water for residents.
Furthermore, the burning of firecrackers during Diwali releases particulate matter and hazardous substances into the atmosphere. While the focus is often on air pollution, these pollutants can also have indirect effects on water bodies. The toxic substances can be deposited into water sources through wet deposition, impacting aquatic ecosystems and the quality of water available for human consumption.
To mitigate the water pollution caused by Diwali celebrations, several eco-friendly alternatives have been suggested. These include the use of LED lights or earthen diyas (oil lamps) instead of conventional lights, choosing reusable and biodegradable decorations and packaging, and avoiding firecrackers altogether. By adopting these sustainable practices, communities can reduce the environmental impact of Diwali celebrations and preserve the health of their water sources.
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Frequently asked questions
Diwali is a festival of lights, celebrated by burning firecrackers and sparklers. The burning of firecrackers releases a significant amount of particulate matter and other toxic gases into the atmosphere, causing air pollution. The main pollutants released during Diwali include PM2.5, PM10, SO2, NO2, and metals like Zn, Al, Pb, Mn, K, Ba, Sr, Cu, and Mg.
Diwali leads to a deterioration in air quality, with an increase in the concentration of various pollutants. Studies have shown a significant increase in pollution levels during and after the Diwali period, with levels of PM2.5 and PM10 experiencing respective increases of up to 68.84% and 34.32% during the Diwali period. The burning of firecrackers during Diwali contributes to this increase in pollution levels.
Yes, the increase in pollution during Diwali can have both chronic and acute effects on people and their environment. The inhalation of trace elements from fireworks can cause severe health effects in humans, and the poor air quality can lead to various health issues.
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