Greta Jimenez
The Ganges River, or Ganga, is one of the most sacred waterways in India, celebrated with birth and death ceremonies on its banks. However, it is also one of the most polluted rivers in the world. The river's pollution is caused by untreated sewage, industrial waste, agricultural runoff, and remnants of partially burned bodies from funeral pyres, among other things. The Indian government has been trying to clean up the river since the 1980s, but despite initiatives like the Ganga Action Plan and the Namami Gange Programme, the river remains severely polluted, posing risks to both human health and the environment.
| Characteristics | Values |
|---|---|
| Population of river basin | 650 million |
| Daily sewage in litres | 37 billion |
| Percentage of untreated sewage | 50% |
| Industrial effluents | Substantial |
| Waterborne diseases | Several |
| Pollution from | Homes, industries, agriculture |
| Pollution by | Food, waste, leaves, human waste, industrial leftovers, domestic sewage, religious rituals, chemical fertilisers, pesticides, herbicides |
| Initiatives | Ganga Action Plan, Namami Gange Programme |
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What You'll Learn
Population growth and sewage
The Ganga basin is one of the most densely populated regions globally, with the river flowing past 29 cities, each with a population of over 1 million people. This rapid urbanisation contributes significantly to the river's pollution levels. Approximately 75% of Ganga pollution comes from municipal sewage, with nearly 37 billion liters of untreated sewage flowing into the river daily. This untreated sewage contains high levels of disease-causing bacteria and toxic substances, posing severe health risks to the population.
The impact of population growth on the river's pollution is further exacerbated by the traditional Hindu practice of cremating bodies on the river's banks. In the holy city of Varanasi alone, an estimated 40,000 bodies are cremated annually and deposited into the river. Many of these bodies are only partially burned due to the high cost of cremation wood, and over 300 metric tons of ash are immersed in the water each year.
To address the issue of sewage pollution, the Indian government has launched various initiatives, including the Ganga Action Plan, the Namami Gange Programme, and the National Mission to Clean Ganga. These programs aim to intercept, divert, and treat domestic sewage, prevent the inflow of sewage into the river, and create sewer networks and sewage treatment plants. Despite these efforts, the river continues to be severely polluted, highlighting the need for integrated, comprehensive solutions that address the complex interplay between population growth, sewage, and other sources of pollution.
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Industrial waste
The Ganges River is revered in India, serving as a vital water source for approximately 500 million people. However, the river is facing a severe pollution crisis, threatening both human health and the environment. One significant contributor to this crisis is industrial waste.
Industrial units along the Ganges have been discharging untreated effluent, containing toxic heavy metals, chemicals, and other hazardous substances. These pollutants include hydrochloric acid, mercury, lead, copper, chromium, cadmium, arsenic, nickel, sulphide ammonium, chemical dyes, sulfuric acid, methane, and other toxic compounds. The tanning industry, in particular, has been identified as a major culprit, with Kanpur, a city on the banks of the Ganges, producing nine million liters of industrial waste per day, much of which is dumped illegally into the river without treatment.
The discharge of these toxic substances has severe ecological and health implications. The accumulation of heavy metals and toxic compounds in fish and vegetables poses long-term health risks, including carcinogenic dangers, to local populations dependent on these food sources. The pollution has also led to the decline and local extinction of native fish species and threatens endangered species such as the Ganges river dolphin and softshell turtle.
The Indian government has recognized the urgency of addressing this issue. In 2010, a $4 billion campaign was announced to prevent untreated municipal sewage and industrial runoff from entering the river. The Namami Gange Programme has also been implemented, focusing on increasing sewage treatment capacity, river surface cleaning, public awareness, and monitoring of industrial effluent. Despite these efforts, the complex nature of the problem has hindered significant success in cleaning the river.
The pollution of the Ganges due to industrial waste highlights the need for comprehensive solutions. While initiatives to improve sewage treatment and reduce runoff are important, stricter enforcement of environmental regulations and accountability for polluting industries are also crucial. Additionally, promoting sustainable practices and integrated infrastructure solutions can help mitigate the impact of pollution on the river's ecosystem and the communities that depend on it.
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Agricultural runoff
Agricultural activities contribute significantly to the pollution of the Ganges River. The river's tributaries irrigate millions of acres of agricultural crops grown along its banks, providing food for nearly one-third of India's population. However, these farming practices have introduced various chemical substances into the river, including fertilizers, pesticides, and herbicides.
The use of toxic chemicals in pesticides and fertilizers has been a significant concern. These chemicals have been found to exceed international safety standards, affecting anyone who uses the river for drinking, bathing, or cooking. They also contaminate the crops grown in fields irrigated by the river and have contributed to the decline of fish populations and other forms of aquatic life. The accumulation of toxic heavy metals in fish and vegetables poses severe long-term health risks, particularly carcinogenic risks, to local populations dependent on these food sources.
To address this issue, there has been a push for organic farming methods and education about the dangers of toxic chemicals. The Clean Ganga Campaign aims to raise awareness and promote sustainable practices among farmers. Implementing policies that prevent toxic chemical runoff and creating wastewater management plans are crucial steps in protecting the river and the health of those who depend on it.
The Ganges River is treated as a receptacle for waste, and its natural capacity to absorb pollutants has been diminished. This has led to a devastating impact on aquatic ecosystems, with freshwater biodiversity declining at a rapid rate. The introduction of chemical substances from agricultural activities has significantly contributed to the pollution load, endangering the river's ecological integrity and the intrinsic value of its biodiversity.
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Religious rituals
The Ganges River is considered sacred in Hindu tradition and holds a profoundly sacred and central place in Indian culture and spirituality. The river is invoked whenever water is used in Hindu ritual and is, therefore, present in all sacred waters. For Hindus, it is the Mother Goddess Ganga herself and is a focus of religious devotion for tens of millions of people across the world.
The Ganga Aarti ritual is performed every evening in devotion to the Goddess Ganga using fire as an offering. A diya (lamp) is lit with a candle and floated down the river along with some flowers. This powerful ritual is performed primarily in the three holy cities of Haridwar, Rishikesh, and Varanasi in India.
The Ganges is also considered to remit sins, especially at one of the famous tirthas such as Varanasi, Gangotri, Haridwar, or the Triveni Sangam at Prayagraj. A dip in the river is thought to remit sins, and many people believe that the river's water purifies all simply through touch, consumption, or expression. Jawaharlal Nehru, a religious iconoclast, asked for a handful of his ashes to be thrown into the Ganges.
The river's importance transcends specific rituals; it embodies a deep historical and cultural continuity for India. Its designation as the National River reflects this enduring “unique position”. Its significance is multifaceted, playing an “enormous role in agriculture, fisheries, transportation, culture and religion”.
The reverence for the Ganga is tied to its long history as a sustainer of life and a witness to the unfolding of civilization. Traditional Hindu beliefs hold that being cremated on its banks and floating down the Ganges will cleanse the sins of the deceased and carry them directly to salvation. In the Hindu holy city of Varanasi alone, an estimated 40,000 bodies are cremated each year and deposited into the Ganges. Because many families cannot afford the high cost of cremation wood, many of the bodies placed in the river are only half-burnt. In recent years, electric crematoria have been constructed next to the ghats in Varanasi and other holy riverside towns as an alternative to burning the bodies of the deceased on traditional wooden pyres.
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Climate change
The Ganges River, or Ganga, is revered in India, where it holds a sacred and central place in the country's culture and spirituality. The river embodies a deep historical and cultural continuity for India, and its designation as the National River reflects this enduring significance. The Ganges is also vital for agriculture, fisheries, transportation, and religion.
However, the river faces severe pollution problems, mainly due to the fast growth of cities, agriculture, and industries in recent decades. The Ganges basin is one of the most densely populated regions globally, with over 650 million people living in its river basin, which spans more than 1 million square kilometres. The river receives untreated sewage, industrial waste, agricultural runoff, remnants of partially burned or unburned bodies from funeral pyres, and animal carcasses. The uncontrolled discharge of domestic sewage without treatment, excessive pollutant discharge from industries, and agricultural runoff have made the river highly polluted. The river's importance and the health risks associated with its pollution have led to various initiatives to clean it up, including the Ganga Action Plan and the Namami Gange Programme.
The interaction of increasing temperatures and changing discharge patterns due to climate change, along with other existing pressures on the Ganga, will affect the survival of millions of people and various floral and faunal species. Climate change will also impact the river's fundamental ecological processes, water quality, species composition, and hydropower potential. The ill effects of adverse climate change can destabilize all the facets of the environment and the bonds between the abiotic and biotic components of the ecosystem.
Despite efforts to rejuvenate the river, the impacts of climate change may prove to be a major setback. The river's biodiversity is declining at a faster rate than in other ecosystems, and its conservation does not receive sufficient attention. The Ganga's unique and complex ecosystem is facing collapse, and urgent action is needed to protect the river and the communities and wildlife that depend on it.
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Frequently asked questions
The main causes of pollution in the Ganga are untreated sewage, industrial waste, agricultural runoff, remnants of partially burned or unburned bodies from funeral pyres, and animal carcasses.
The consequences of the pollution in the Ganga are profound, including severe human health risks from waterborne diseases, the accumulation of toxic heavy metals in food sources, ecological degradation, and threats to endangered species like the Ganges river dolphin.
Several initiatives have been implemented to clean the Ganga, including the Ganga Action Plan and the Namami Gange Programme. These initiatives aim to promote sustainable practices, improve infrastructure, and enhance monitoring efforts.
While there have been some successes, such as the creation of forests near the river through the Namami Gange programme, the overall success in cleaning the Ganga has been limited. The complex nature of the challenge requires integrated and comprehensive solutions that address infrastructure, sustainable practices, and improved monitoring.
