Did the cloud seeding trials in Delhi reduce pollution levels?

No, data shows the cloud seeding trials conducted by the Delhi government on October 30, 2025 failed to significantly reduce air pollution levels in the city.

What did the IIT-Kanpur report say about the cloud seeding trials?

The IIT-Kanpur preliminary report claimed the trials led to reductions in PM2.5 and PM10 levels at monitoring stations, but the official data contradicts these findings.

How did pollution levels change in Delhi on the day of the cloud seeding trials?

The data shows air quality improvements began before the trials, and pollution levels fluctuated or even rose during and after the cloud seeding experiments.

Home / Environment / Delhi's Cloud Seeding Trials Fail to Curb Pollution, Data Shows

Delhi's Cloud Seeding Trials Fail to Curb Pollution, Data Shows

30 Oct, 2025

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Summary

Delhi conducted cloud seeding trials to reduce pollution
Data shows air quality improved before trials, not during or after
IIT-Kanpur reported some reduction in PM2.5 and PM10, but data contradicts

Delhi's Cloud Seeding Trials Fail to Curb Pollution, Data Shows

On October 30, 2025, the Delhi government conducted two rounds of cloud seeding trials in an effort to curb the city's air pollution. However, an analysis of official monitoring data paints a different picture than the claims made by Delhi Environment Minister Manjinder Singh Sirsa and IIT-Kanpur.

The data shows that air quality improvements in Delhi began hours before the cloud seeding operation, suggesting the trials had little to no impact. Pollution levels fluctuated and even rose after the experiments, contradicting the reported reductions in PM2.5 and PM10 concentrations.