The chemical treatment aims to reduce the froth and foam in the Yamuna, often caused by untreated waste, industrial pollutants, and sewage that flow into the river.

Alongside water pollution issues in the Yamuna, Delhi faces severe air pollution, with AQI levels across the city recorded in the 'very poor' category, posing health risks for residents.

A thin layer of smog engulfed parts of the national capital on Sunday, and the Air Quality Index (AQI) continues to be in the 'very poor' category. 

The AQI of Delhi was recorded at 364 at 7 AM on Sunday, according to the Central Pollution Control Board (CPCB).

In addition to chemical spraying in the Yamuna, Delhi's Environment Minister announced the deployment of 200 mobile anti-smog guns across the city to curb dust pollution and improve air quality.

Residents like Aditya have expressed difficulty breathing due to the high pollution levels, with both air quality and the foaming Yamuna making it unsafe to exercise or spend extended time outdoors.

The Delhi government is focusing on a multi-pronged approach to pollution, targeting dust, vehicle emissions, and biomass burning to improve both air and water quality in the city.

Reducing toxic foam in the Yamuna is part of the government’s larger strategy to improve environmental conditions in Delhi, with measures in place to address both air and water pollution.