Kiera Jefferson
The Taj Mahal, one of the Seven Wonders of the World, has been under attack by air pollution, threatening its flawless white marble structure. The mausoleum, built by Mughal emperor Shah Jahan, has been weathering filthy air in the world's eighth-most polluted city, Agra. The city's pollution is caused by industrial emissions, sewage, and solid waste, which have led to discolouration and corrosion of the monument. The Indian government has taken steps to curb pollution, such as creating a safe zone around the monument and implementing the National Clean Air Programme. However, despite these efforts, the Taj Mahal continues to face the impact of pollution, with yellow and brown stains appearing on its marble facade.
| Characteristics | Values |
|---|---|
| Cause of pollution | Air pollution, water pollution |
| Air pollution sources | Vehicle emissions, industrial emissions, crop residue, garbage, municipal solid waste burning, biomass, construction and demolition activities |
| Water pollution sources | Industrial discharge, sewage, solid waste |
| Effects of air pollution | Yellowing and blackening of the Taj Mahal's marble, discolouration, corrosion |
| Effects of water pollution | Insect attacks, damage to other monuments |
| Action taken | Creation of a bypass, improvements to the power supply, reduction of diesel generators, launch of an action plan to combat air pollution, use of mud packs and clay mineral paste to clean marble |
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What You'll Learn
Air pollution from vehicles and factories
The Taj Mahal, a UNESCO World Heritage Site and one of the Seven Wonders of the World, has been battling the adverse effects of air pollution since the 1970s. The iconic white marble structure has turned yellow and brown due to air pollution from vehicles and factories.
Agra, the city that houses the Taj Mahal, is one of India's most polluted cities. The air pollution in Agra is caused by a combination of vehicle emissions, industrial activities, and the burning of biomass and fossil fuels. The increasing number of vehicles on the roads has led to traffic congestion, with vehicles being a significant source of harmful emissions such as nitrogen oxide and carbon-based particles. These emissions have contributed to the discolouration of the Taj Mahal's white façade, leaving it with a yellow sheen.
Factories and industrial units in Agra also contribute to air pollution. Fossil fuel burning and industrial emissions release pollutants such as sulphur dioxide, nitrogen dioxide, and carbon-based particles into the atmosphere. These pollutants are then carried by the wind and deposited on the Taj Mahal, causing further discolouration and corrosion. Additionally, the burning of biomass, garbage, and refuse generates brown carbon, which also contributes to the air pollution affecting the monument.
To combat this issue, the Indian government has implemented several measures. They have created a safe zone around the monument, redirected automobile traffic, and introduced electrically-powered tour buses and cabs. Local governments have also installed air quality monitors to gauge the effectiveness of these environmental efforts. The National Clean Air Programme aims to improve air quality in 102 Indian cities, including Agra, by 2025. Additionally, private sector players have proposed projects to reduce plastic waste and clean up the Yamuna River, which is a significant source of water pollution affecting the Taj Mahal.
The battle against air pollution at the Taj Mahal is an ongoing process, with various initiatives and efforts being undertaken to preserve this iconic monument for future generations.
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Water pollution from the Yamuna River
The Yamuna River is a crucial water source for India, with an annual flow of about 10,000 cubic billion meters, providing over 70% of Delhi's water supply. However, it is also one of the most severely polluted rivers in the world, particularly downstream of the capital, New Delhi, which dumps about 58% of its waste into it. The river's pollution poses a significant threat to the Taj Mahal, a majestic 17th-century Mughal architectural wonder located nearby.
The Yamuna River's water quality has been severely impacted by various factors, including industrial discharge, sewage, and solid waste. A report by the National Environmental Engineering Research Institute (NEERI) in 2010 revealed that despite government efforts, the Taj Mahal remained at risk from water and air pollution. The report highlighted that the Yamuna's water, contaminated with industrial effluents, was damaging the monument.
The river receives a significant amount of wastewater from cities like Yamuna Nagar and Panipat, as well as household activities that release detergents, laundry chemicals, and phosphate compounds into the water. Additionally, rapid urbanization and industrialization have led to the presence of heavy metals in the river, with iron (Fe) being the most abundant. The high levels of iron even exceed the permissible limits, posing risks to both the environment and human health.
The pollution in the Yamuna River has resulted in the decline of aquatic life, and the growth of insects like Goeldichironomus, whose excreta has contributed to the green and brownish patches on the Taj Mahal's marble. This insect growth is attributed to the stagnant and polluted water conditions. Furthermore, the formation of phosphorous in the river water has also been linked to the breeding of insects, further exacerbating the issue.
To address the water pollution in the Yamuna River, several initiatives have been undertaken. For example, eleven treatment plants are being installed along an 83-km-long sewer line to treat the wastewater before it enters the river. Additionally, organizations like the Yamuna Foundation for Blue Water Inc. have been working towards cleaning up the river and creating a healthier ecosystem in New Delhi. These efforts are crucial in mitigating the impact of water pollution on the Taj Mahal and the surrounding environment.
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Industrial waste and sewage in the river
The Yamuna River, which flows through several states, including Uttarakhand, Haryana, Delhi, and Uttar Pradesh, is one of the most important rivers in North India. It is considered the lifeline of North India, providing water for drinking, agriculture, and industry for millions of people. However, despite its immense significance, the Yamuna River has become one of the most polluted rivers in India, particularly in the Delhi region.
Industrial waste and sewage discharge are significant contributors to the Yamuna River's pollution crisis. Industries along the river, including textile, tannery, chemical, and pharmaceutical factories, release toxic chemicals, dyes, and heavy metals into the water. These pollutants include harmful substances such as lead, mercury, cadmium, and arsenic, which pose a severe threat to both human and wildlife health. The accumulation of industrial waste has turned stretches of the Yamuna into a floating landfill, clogging drainage systems and disrupting the natural flow of the river.
Untreated sewage from urban areas, especially Delhi, is another critical factor in the river's pollution. Delhi alone contributes approximately 3,800 million liters of sewage daily, far exceeding the capacity of the existing sewage treatment plants. This untreated sewage increases the organic matter in the river, leading to eutrophication and oxygen depletion. As a result, the river's Biochemical Oxygen Demand (BOD) often exceeds permissible limits, rendering the water unfit for aquatic life and contributing to the overall degradation of the ecosystem.
The corrosion of the Taj Mahal's marble, which has been a concern since the 1970s, is also attributed to the pollution of the Yamuna River. Studies have found that the river, carrying the untreated wastewater of Agra, is responsible for the generation of hydrogen sulfide (H2S), a corrosive and acidic gas. This gas, along with other air pollutants, has caused the discoloration and corrosion of the Taj Mahal's white marble, leading to the formation of yellow, brown, and black spots on the monument's surface.
To address the pollution crisis in the Yamuna River, various initiatives have been launched by the government, environmental organizations, and citizen-led movements. Programs such as the Yamuna Action Plan (YAP) and the Namami Gange Mission aim to improve wastewater management, sewage treatment, and environmental regulations. However, the success of these efforts relies on collective action and a combination of strict enforcement of environmental laws, innovative waste management technologies, and increased public awareness about pollution prevention.
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Insect excrement from the river
The Taj Mahal, one of the Seven Wonders of the World, has been under attack from air pollution since the 1970s. The white marble of the monument has been stained and fading over the years, turning into a dingy yellow and brown colour. While air pollution has been a long-standing issue, the latest threat to the Taj Mahal is from insect excrement.
The Yamuna River, on which the Taj Mahal sits, has become heavily polluted, stagnated, and now runs low and thick with trash and untreated waste. The river no longer supports fish that once kept the insects in check, leading to an increase in their population. The insects, a type of elongated fly that resembles mosquitoes, are breeding in the polluted river and leaving green and black patches of waste on the walls of the Taj Mahal.
The insect excrement is damaging the intricate marble inlay work of the monument. Archaeological experts have expressed concern over the regular scrubbing of the walls to remove the waste, as it could damage the floral mosaics and shiny marble surface. The marble panels depicting plant motifs and reflective tiles used in the monument are becoming disfigured.
The Archaeological Survey of India, the agency that oversees the monument, has been applying mud packs to whiten the walls and minarets and remove the yellow stains. However, the insect slime and grime keep returning, coating the flowers carved into the marble. The Indian government has taken steps to curb air pollution and protect the Taj Mahal, but the issue of insect excrement from the polluted river remains a challenge.
The sudden increase in the insect population and their impact on the Taj Mahal has been recognised as a serious concern by officials. While efforts are being made to investigate and control their population, the river's pollution and the resulting insect proliferation continue to threaten the integrity of the Taj Mahal's marble structures.
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Acid rain and corrosion
The Taj Mahal, a UNESCO World Heritage Site and one of the Seven Wonders of the World, has been battling the effects of pollution since the 1970s. The white marble mausoleum, built by Mughal emperor Shah Jahan for his wife Mumtaz Mahal, has turned yellow and is developing brown and black spots.
Acid rain, caused by sulphur dioxide emissions, is a significant contributor to the corrosion and discolouration of the Taj Mahal. The marble has been soaked in acid rain and corroded by contaminants in the air. While the popular theory blames sulphuric acid-induced "acid rain", a study conducted between 2006 and 2010 found that steel exposed in Agra showed similar corrosion rates to steel in other locations with lower industrial pollution. This suggests that other factors may also be at play.
The nearby Yamuna River, which has lost its biological flow, is a major source of pollution. The river carries untreated wastewater and sewage from the city of Agra, resulting in the generation of hydrogen sulphide (H2S), a corrosive and acidic gas. The river used to support fish and other aquatic species that fed on insects, but due to severe water pollution, these insects now breed in the river's contaminated debris and attack the Taj Mahal in the evenings, leaving stains with their excrement.
Air pollution from automobile emissions, industrial emissions, and biomass burning also plays a significant role in the corrosion of the Taj Mahal. High levels of noxious gases, suspended dust particles, and carbon-based particles have been found in the area, contributing to the discolouration and corrosion of the marble.
To combat this, the Indian government has implemented measures such as creating a safe zone around the monument, redirecting automobile traffic to electrically-powered vehicles, and installing air quality monitors. Local private sector players have also proposed projects to reduce plastic waste and clean up the Yamuna River.
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Frequently asked questions
The Taj Mahal is becoming polluted due to air pollution from industrial emissions, vehicle emissions, and garbage burning. The city's sewage and industrial waste also flow into the nearby Yamuna River, causing water pollution.
Air pollution is causing the Taj Mahal's white marble to become yellow, brown, and green. The marble is also becoming stained by the excrement of insects from the polluted Yamuna River.
The Yamuna River, which is heavily polluted with untreated sewage and industrial waste, is a source of insects that stain the marble of the Taj Mahal with their excrement. The river's water is also corrosive, causing the marble to corrode and deteriorate.
The Indian government has implemented measures to curb pollution, including creating a safe zone around the monument, redirecting automobile traffic, and installing air quality monitors. The city of Agra has also launched a comprehensive action plan to control air pollution, with a focus on vehicle emission control, suspension of road dust, and emission control of biomass, crop residue, and garbage burning.
