Published by Ajay Maken, Member of Parliament, Rajya Sabha. Independent analysis of official CPCB monitoring data. Data compiled by CREA, with our thanks for its work in creating awareness. Contact: [email protected]
हवा का हिसाब Hawa Ka Hisab

Report · 01 August 2026

The written analysis for this date is in the PDF report below. The figures and chart on this page are unaffected.

63
Consecutive days worse
than the same period last year
139 / 212
Days worse this year
of all days measured in 2026
+15.0
Average excess, µg/m³
PM10 above last year, weather removed
Analysis window: 10 AM 31st July to 10 AM 1st August
Baseline: YoY baseline: avg of 25th Jul - 8th Aug 2025 (same +/-7 days), matched stations

Today's full report

Roughly twelve pages: the verdict on today's air, every monitoring station, the weather versus policy attribution, the full year of de-weathered trends, and the annexures behind each number.

Download the daily reportPDF, 1.2 MB
Narrated in Hindi. Runs 118 seconds.

The evidence

The daily residual: this year minus last year

■ Red: the de-weathered residual, weather removed. Above the zero line, pollution was higher than last year; below the zero line, it was lower.
+0+10+20+30 same as last year +7.6 30 May30 Jun01 Aug µg/m³
Each point is a residual: that day's PM10 level minus the same period last year, after the model removes the effect of weather. The shaded band is the uncertainty around each day. Above the zero line means Delhi's air was genuinely worse than last year, and not merely unluckier with the wind; below it means genuinely cleaner. The run begins 30 May 2026.

A caution we publish daily

Gas data carries documented unit-inconsistency (peer-reviewed international research, 2025); we lead on the reliable PM2.5/PM10.

Back to the daily archive