Researchers have found a cocktail of pollutants in Hyderabad s Durgam Cheruvu lake. In addition to pollutants such as cyanotoxins, pesticides and UV filters, researchers identified 183 compounds of organic micropollutants such as antidepressants, painkillers, anti-obesity medications, and even traces of cocaine. Experts called for immediate action to treat contaminated water, with strict waste management and regulation.