100/100 POLLUTION SCORE:
WHY WASTE-TO-ENERGY PLANTS DON’T BELONG IN THE “BLUE” CATEGORY
The report “100/100 POLLUTION SCORE: WHY WASTE-TO-ENERGY PLANTS DON’T BELONG IN THE “BLUE” CATEGORY” challenges the Central Pollution Control Board’s (CPCB) 2025 reclassification of Waste-to-Energy (WTE) incineration plants from the “Red” category to the newly created “Blue” category which grants critical regulatory exemptions.
Using evidence from CPCB’s own documents, the report shows that WTEs produce ‘hazardous’ waste, which would disqualify them from making it to the ‘blue’ category.
Further, using CPCB’s pollution index calculating formula, the report demonstrates that WTEs are in fact one of the highest polluting industries in India. Inventing an industry classification (‘blue category’) delinked from its pollution footprint to exempt it from regulatory safeguards, has disastrous consequences for the environment and public health.
Delhi’s headlines for a long time have been its abysmal air quality index. The basic act of breathing carries profound long-term health risks, reducing the average lifespan of a Delhiite by about 12 years. While public attention routinely fixates on seasonal agricultural stubble burning or vehicular pollution, a permanent yet important contributor to Delhi’s pollution is the burning of about 7,250 tons of unsegregated Municipal Solid Waste daily in the city’s four Waste To Energy (WTE) Incinerators.
Waste-to-energy incineration is the process in which Municipal Solid Waste (MSW) is burnt in a furnace to produce heat. The heat is used to produce steam that drives a generator to produce electricity. But apart from that it also produces bottom ash and fly ash which are hazardous in nature and need a scientific landfill to dispose of.
These WTE incinerators pose considerable risk not only to the health and environment of neighboring communities but also to the general population by reducing the Ambient Air Quality. They pollute air, water, and soil by releasing SOx, NOx, PM 2.5, PM 10, HCL, heavy metals, dioxins, furans, etc. Positioned directly inside dense municipal spaces—these facilities continuously externalize their toxic operating costs onto millions of vulnerable citizens, turning local neighborhoods into sacrifice zones.
The 5-year investigative reporting by The New York Times, has cast a fierce global spotlight on the operational failures and toxic realities of Delhi’s incinerators. The report, which collected over 150 samples found incinerator ash with cadmium registering 19 times higher, manganese 11 times higher, arsenic 10 times higher, and lead 4 times higher than safe thresholds, threatening local families with irreversible bone, kidney, cardiovascular, and neurological diseases. Overall, the report found that the Okhla WTE plant impacted the health of more than 1 million people.
The critical urgency of this study is further amplified because Delhi is not an isolated administrative failure; across India, hundreds of municipal corporations are actively planning, funding, or constructing WTE incineration plants that burn unsegregated MSW.
