Blue Washing

April 11, 2025

The Central Pollution Control Board (CPCB) has recently introduced a new category of industries called the ‘Blue Category’, which falls under Essential Environmental Services (EES).

What is Blue Washing?

  • ‘Blue Washing’ refers to the practice of portraying polluting industries as environmentally friendly by categorising them under less polluting or cleaner industry labels.
  • This term is now used to describe the reclassification of highly polluting Waste-to-Energy (WTE) incineration industries by the Central Pollution Control Board (CPCB) into the new 'Blue Category'.

Blue Category

  • The ‘Blue Category’ is introduced as part of a subset of EES activities like composting, biogas plants, sewage treatment, and material recovery facilities.
  • Waste-to-Energy (WTE) incineration, previously under the ‘Red Category’ with a Pollution Index (PI) of 6, is now reclassified as a ‘Blue Category’ industry.

What is WTE Incineration?

  • WTE incineration burns mixed municipal solid waste (MSW) to produce heat and electricity.
  • It generates energy through turbine-driven steam, similar to coal plants, but emits more CO₂

About Pollution Index (PI)

  • The Union Ministry of Environment, Forest and Climate Change (MoEFCC) introduced a PI to categorise industries based on pollution levels.
  • PI is calculated on the basis of emissions (air pollutants), effluents (water pollutants), hazardous waste, and resource consumption.
  • PI ranges from 0 to 100, with industries classified as:
    • White Category (0–20): Least polluting
    • Green Category (21–40)
    • Orange Category (41–59)
    • Red Category (60–100): Most polluting.

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