Open Waste Burning: Winter Surge in Indian Cities

UPSC Mapping

Important for

• Prelims: Environment and Ecology
• Mains: GS Paper III: Environment, Pollution and Urban Governance

Quick Facts

Study Coverage	11 Indian cities
Survey Period	2019–2026
Winter Change	Up to threefold
Legal Framework	Solid Waste Management Rules, 2016

Article

Open Waste Burning rises sharply during winter and exposes serious gaps in India’s urban waste services. A multi-city study reports seasonal increases in burning incidents, waste quantities and associated emissions; the findings connect air pollution with municipal capacity, environmental justice and neighbourhood-level health risks.

What is Open Waste Burning?

Open Waste Burning means uncontrolled combustion of municipal refuse on streets, vacant plots, collection points or near dumpsites. It usually involves mixed materials rather than waste selected for regulated thermal treatment. The practice commonly appears where door-to-door collection remains irregular, storage points overflow or scientific processing capacity cannot absorb collected waste.

Burning mixed refuse releases particulate matter, carbon monoxide and several toxic organic compounds. Plastics, rubber and treated materials can produce especially harmful emissions because combustion remains incomplete and poorly controlled. Smoke emerges close to breathing height, placing residents, street vendors, children and informal waste workers near the immediate plume; local exposure may therefore remain serious even when the source contributes a modest share of citywide emissions.

Why is Open Waste Burning in News?

Open Waste Burning entered the news after a WRI India working paper examined field surveys across 11 polluted Indian cities. Surveys conducted between 2019 and 2026 compared burning incidence, estimated waste quantities and resulting emissions across seasons. The researchers found that these measures could become up to three times higher in winter than summer; they did not disclose the participating cities, so conclusions should remain limited to the assessed sample.

The seasonal result matters because cooler air, weak winds and shallow mixing layers often restrict pollutant dispersion. Smoke can remain concentrated near the ground precisely when many cities already face severe post-monsoon pollution. WRI India has also highlighted the need for city agencies to address burning through improved services and enforcement; aspirants can consult the WRI India research portal for its work on urban air quality and waste-burning control.

Key Features

The study separates citywide emission shares from direct neighbourhood exposure and compares patterns across different city tiers.

• Strong winter increase: Burning incidence, estimated quantities and related emissions rose as much as threefold compared with summer observations.
• Different tier patterns: Tier 2 cities recorded the largest burned quantities, while Tier 3 cities showed the highest average winter incidence.
• Measured incidence: Winter averages reached 49.6 incidents per square kilometre daily in Tier 3 cities, 46 in Tier 2 and 39.4 in Tier 1.
• Local exposure paradox: The source contributed below one per cent of citywide PM2.5 and PM10 emissions yet created intense exposure near burning locations.
• Socio-economic gradient: Poorer Tier 2 neighbourhoods recorded the study’s highest observed incidence, approaching 84 events per square kilometre daily during winter.

Challenges

India must close persistent gaps in collection coverage, source segregation, enforcement, local monitoring and safe processing capacity.

• Irregular municipal services: Households and workers may burn accumulated refuse when collection vehicles do not reach underserved neighbourhoods reliably.
• Mixed-waste toxicity: Unsegregated loads combine food, paper, plastics, rubber and treated materials, increasing harmful emissions during incomplete combustion.
• Weak local data: Conventional monitoring stations measure ambient concentrations but rarely identify repeated fires along streets, drains and collection points.
• Seasonal policy gap: Winter plans often prioritise traffic, industry, construction dust and crop residue while giving municipal refuse fires less attention.
• Unequal exposure: Poorer communities receive weaker services and then bear greater health risks from the disposal practices created by those deficiencies.

Way Forward

Urban local bodies should guarantee regular doorstep collection, enforce source segregation and expand decentralised processing for biodegradable waste. They must map recurring fire locations and deploy winter patrols where atmospheric dispersion becomes weakest. Community reporting, geotagged inspections and transparent ward dashboards can support targeted enforcement; municipal contracts should link payments with verified collection quality rather than vehicle trips or paperwork alone.

Cities should integrate refuse fires into clean-air plans while protecting informal workers through equipment, training and formal inclusion. Pollution boards can combine ambient monitors with field surveys and low-cost sensors around vulnerable neighbourhoods. The CPCB waste-management framework provides official rules and implementation resources for municipal solid waste; reliable collection, material recovery and scientific disposal address the cause more effectively than seasonal firefighting alone.

Prelims Practice Corner

Question 1

With reference to uncontrolled burning of municipal refuse, consider the following pollutants: 1. Particulate matter 2. Carbon monoxide 3. Dioxins and furans. How many can arise from the practice?

• (a) Only one
• (b) Only two
• (c) All three
• (d) None

Answer: (c) Mixed refuse combustion can release all three, depending on materials and combustion conditions.

Question 2

Why can a source with a small citywide emission share still create a major health concern?

• (a) Exposure may be intense near ground-level sources
• (b) All pollutants remain permanently localised
• (c) Ambient monitoring always overestimates exposure
• (d) Emission inventories exclude particulate matter

Answer: (a) Proximity and breathing-height smoke can produce high local exposure despite a low aggregate share.

Question 3

The Solid Waste Management Rules, 2016 primarily place responsibility for organised municipal collection and disposal on which institution?

• (a) Finance Commission
• (b) Urban local body
• (c) Election Commission
• (d) Inter-State Council

Answer: (b) Urban local bodies carry core responsibilities for municipal solid-waste management within their jurisdictions.

Question 4

Which atmospheric condition most directly worsens near-ground pollution accumulation during winter?

• (a) Strong vertical mixing
• (b) A shallow mixing layer
• (c) Persistent heavy rainfall
• (d) High oceanic tides

Answer: (b) A shallow mixing layer restricts vertical dispersion and concentrates pollutants closer to the surface.

Question 5

Which intervention addresses the root cause of repeated refuse fires in underserved neighbourhoods most directly?

• (a) Relocating ambient monitors
• (b) Increasing road width
• (c) Reliable segregated collection and processing
• (d) Restricting interstate freight movement

Answer: (c) Dependable collection and processing prevent accumulation that often leads residents or workers to burn refuse.

Mains Practice Questions

Question 1

Urban waste fires represent a service-delivery and environmental-justice problem, not merely individual misconduct. Discuss. (15 marks)

Answer Structure:

• Intro: Define the practice and connect it with gaps in municipal waste systems.
• Body: Cover unequal collection, local exposure, health risks, informal workers, enforcement limits and institutional accountability.
• Conclusion: Advocate universal services, inclusive governance and hotspot-based monitoring.

Question 2

Explain why citywide emission shares may underestimate the public-health importance of local pollution hotspots. (10 marks)

Answer Structure:

• Intro: Distinguish aggregate emissions from personal and neighbourhood exposure.
• Body: Examine proximity, breathing height, seasonal dispersion, vulnerable groups and monitoring limitations.
• Conclusion: Recommend combining inventories with local exposure assessment and targeted action.

FAQs on Open Waste Burning

Why does waste burning increase during winter?

The study associates winter with more frequent burning and larger quantities of burned refuse. Poor atmospheric dispersion then allows smoke to remain concentrated near the ground for longer periods.

Why is a below-one-per-cent citywide contribution still important?

Open Waste Burning occurs close to homes, workplaces and public streets. Nearby people can receive intense short-term exposure even when the practice forms a small part of an entire city’s emissions inventory.

What is the most effective municipal response?

Cities should provide reliable collection, enforce segregation and ensure sufficient processing capacity. Monitoring and penalties work best when residents have accessible alternatives to burning accumulated refuse.