Open dumps are uncovered areas where solid waste of all types is dumped. The waste isn't processed, it's left out in the open; it's not segregated. It's a breeding place for disease-carrying flies, rodents, and other insects. Rainwater runoff from these dumps contaminates adjacent land and water, causing diseases to spread. This article will explain to you about open dumps for the disposal of solid waste, which will be helpful in preparing the Environment syllabus for the UPSC Civil Service Exam.

Percentage of Open Dumps: Source: What A Waste 2018 Report

Open Dumps- Concept

• An open dumping site is one where solid waste is disposed of in a way that does not safeguard the environment, is subject to open burning, and is exposed to the elements, vectors, and scavengers.
• Although some open dumps are cleared soon after they are made, most will remain for an indefinite period of time if the location is positioned in the wilderness or in a public space with insufficient public services.
• The discharge of toxic pollutants and heavy metals into the air and water, the increased presence of disease vectors such as rodents and insects, and physical risks such as hypodermic needles, noxious fumes, and/or piercing objects are all potential hazards of open dumping.
• The open dumps are also used in the energy-generating sector
• Carbon dioxide and methane are created when waste accumulates and begins to decompose. These gases can be extracted, purified, and used to generate energy.
• An officially designated municipal solid waste landfill or sanitary waste landfill is not an open dump.

An Open Dumping Site

Illegal Dumping

• Illegal dumping, often known as fly dumping or fly tipping, is the illegal disposal of waste rather than using a legal method such as curbside collection or a licensed dump.
• Local people, construction and landscaping contractors, waste removers, scrap yard owners, and auto and tyre repair shops are all examples of offenders.
• People illegally dump for a variety of reasons; nevertheless, research shows that a lack of legal waste disposal options is a major cause.
• Demand for garbage removal services is increasing as a result of a lack of legal disposal options.
• Unit pricing, which includes charging a set price per bag of waste thrown out, has also been linked to unlawful dumping in studies.
• Although the goal of unit pricing is to encourage individuals to use alternative trash disposal methods like recycling and composting, some may resort to illegal waste disposal to save money.
• Furthermore, a lack of public understanding about the environmental, health, and economic hazards of unlawful dumping, as well as insufficient enforcement of laws preventing illegal dumping, contribute.

Open Dumps- Impacts

Toxic Gas Emissions

• The expansion of open rubbish dumps with no ventilation results in methane emissions, which absorb the sun's heat, warm the atmosphere, and contribute to global warming.
• The formation of methane from the anaerobic degradation of waste in the open dumps , as well as the emission of nitrous oxide both contribute directly to greenhouse gas emissions.
• Both of these greenhouse gasses have a high global warming potential: methane has a warming potential 21 times that of carbon dioxide, and nitrous oxide has a warming potential 310 times that of carbon dioxide.
• This waste rises to the surface of the earth and traps heat. Extreme weather events, such as storms and cyclones, are a result of this.
• Apart from temperature, the amount of precipitation in the air is also greatly influenced.
• A few of the consequences of improper disposal include acid rain and violent hail storms.
• This extends to other sectors, such as thermal and radioactive pollution, as well as subdivisions.

Odor

• The odor of solid waste is a less severe but more well-known effect of open dumpse.
• Neighbors of open dumps frequently complain about the odor they emit.
• While methane-powered projects minimize the amount of unpleasant gasses that escape a landfill, they do not completely eradicate the odor.
• Given the size of open dumps, there is no immediately available remedy to the problem of odor, which can attract species such as rats and other diseases-causing organisms.

Water Pollution

• Water is a great solvent since it can hold a lot of dissolved compounds.
• As a result, water assembles solid waste in the open dumps as it moves through the network.
• It frequently contains dissolved substances such as chemicals and glasses.
• Rainfall mixes easily with poisonous liquid substances and seeps into water streams, eventually ending up in neighbouring bodies of water.
• As a result, pollution risks exist at the neighbourhood fountain, pond, lake, and even drinking water faucets.

Health Issues

• Open dumping endangers human, animal, and environmental health.
• Respiratory diseases, skin infection, eye irritation, gastrointestinal problems, and diarrhea were among the health issues investigated in various cases because of the open dumps.
• Furthermore, due of the incubation and multiplication of flies, mosquitoes, and rats, solid waste dumping places become sources of mosquito borne diseases such as dengue, malaria, etc. and rat-borne diseases such as hantavirus, leptospirosis, lymphocytic choriomeningitis (LCMV), Tularemia and Salmonella.
• Polybrominated diphenyl ether, bisphenol A, and phthalates are among the chemicals leached from plastics in open dumps, and they have an impact on human health, causing hormonal and genetic abnormalities.
• These substances can disrupt the endocrine system and thyroid hormones, and they can be particularly harmful to women of reproductive age and young children.

Open Dumps- Mitigation

• Public Awareness: Raising public awareness of the dangers of open dumps and their health impacts through education and outreach activities in order to change behavior.
• Alternatives to Open Dumps: The other good alternatives for solid waste disposal such as sanitary landfills, incineration, etc would have to be prioritized in the fight against open dumps.
• Economic Incentives: Before enacting the ban or levy, the government may provide economic incentives to stimulate the adoption of eco-friendly and fit-for-purpose alternatives that do not cause greater harm.
• Recycle And Reuse: Tax breaks, R&D grants, technology incubation, and funding for programs that recycle single-use items and other recyclable and reusable substances in the open dumps and then turn the waste into a resource that can be reused are all possible sources of mitigating open dumps.

*To know more on this topic, click this link Solid Waste Management Rules, 2016

Conclusion

Open dumps are thus one of the prevalent methods of disposing solid wastes as they are the easiest and free of charge unmonitored way. Though they are prevalent, they have a harmful impact on the environment as a whole. Furthermore, open dumps are regarded as an inappropriate solid waste disposal method. They are also labelled as an unlawful and illegeal activity and anyone caught disposing in this manner could face a fine in few countries.