Delhi Water Woes: Your jeans may be t behind Delhi's 'blue' water
In southeast Delhi, near the DelhiMumbai expressway, illegal denim dyeing units in Meethapur village are significantly impacting local water bodies with untreated toxic chemicals. These unauthorized operations are causing severe environmental damage and posing health risks to residents, with polluted water flowing into the Yamuna River. EnvironmentalImpact and Health Risks The process of dyeing denim, while creating popular garments, is highly environmentally damaging. Experts explain that synthetic indigo dye does not dissolve in water and requires chemicals to penetrate and color the denim fibers. Despite regulations that restrict such operations to industrial zones, numerous illegal dyeing units are scattered throughout non-conforming areas like Meethapur. These units discharge toxic waste into local drains, which eventually flows Pollution and Regulatory Challenges Nivit Yadav, program director of the industrial pollution unit at the Centre for Science and Environment, detailed the situation: “These units discharge untreated chemical waste into the sewer, which flows to sewage treatment plants (STPs). However, STPs lack the capacity to treat chemical waste, allowing toxic material to enter the Yamuna. These units use substances like hydrochloric acid, hydrogen peroxide, sulfuric acid, formic acid, caustic soda, agents, detergents, and salts. Since they don’t have effluent treatment plants, the discharge of chemical waste can be harmful to both humans and aquatic life.”
