Archive · 23 May 2025
Yamuna River Pollution Spikes in May, Experts Raise Concerns
The Yamuna River got dirtier in May, with more bad stuff like poop and ammonia in the water.
The pollution was worse at the end of the river as it left the city.
Some experts are confused because the test results don't seem to match up, like the amount of oxygen in the water and the level of bad stuff.
This could mean there is algae growing, or there are too many nutrients in the water.
They are worried about if the test results are accurate.
Yamuna pollution increased in May with higher fecal levels and ammonia.
Pollution spiked at the river's exit from Delhi at Asgarpur.
Ammoniacal nitrogen levels doubled in May compared to the previous month.
Experts have raised concerns about discrepancies in test results reported by DPCC.
High DO levels upstream may indicate algal growth or excess nutrients.
- Who
- Delhi Pollution Control Committee (DPCC), environmental experts, and a Delhi government official
- What
- Increased pollution levels, specifically fecal coliform, ammonia, and changes in water quality metrics.
- When
- May
- Where
- Yamuna River in Delhi
- Why
- To assess and monitor water quality in the Yamuna River.
Discrepancies in Pollution Data
Possible Causes of Discrepancies
Water Quality Readings
Discrepancies in Pollution Data
Fecal coliform levels are high, but BOD seems low in some areas.
Possible Causes of Discrepancies
DO levels are high upstream, potentially due to algae or nutrients.
- Key Metric
- Fecal Coliform
- Pollution Level at Asgarpur
- 23,00,000 MPN/100 ml
- Ammonia Level
- 5.7mg/litre
- BOD at Nizamuddin Bridge
- 37mg/l
- BOD at Okhla barrage
- 23mg/l
- DO level at Palla
- 9.8mg/l