Howrah vs Pune
Side-by-side air quality comparison between Howrah and Pune.
Live AQI from Open-Meteo CAMS (~45 km global model, updated hourly). Multi-year history from CPCB station data via aqinow.co pipeline (2016–2024, station-level daily records).
AQI Comparison
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Howrah | Pune |
|---|---|---|
| PM2.5(µg/m³) | 64.70 | 16.30 |
| PM10(µg/m³) | 69.40 | 35.50 |
| NO₂(µg/m³) | 18.10 | 10.00 |
| SO₂(µg/m³) | 13.10 | 9.20 |
| O₃(µg/m³) | 86.00 | 36.00 |
| CO(µg/m³) | 421.00 | 152.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Howrah averaged an AQI of 126 while Pune averaged 97 — a 29-point (30%) gap, with Howrah the more polluted and Pune the cleaner of the two. On 1910 days when both cities reported, Pune was cleaner on 1099 of them; the average daily gap was 73 AQI points.
Seasonality & days
Howrah peaks in December, while Pune peaks in November. Howrah logged 0.7% Severe days and 48.7% Good-or-Satisfactory days; Pune was 0.1% Severe and 44.8% Good-or-Satisfactory. Longest clean-air streaks: Howrah 120 days, Pune 92 days.
Year-over-year progress
Howrah has improved by 32 AQI points (20.3%) from 2016 to 2024; Pune has improved by 7 AQI points (6.7%) over the same window. The worst recorded day for Howrah reached AQI 500 at Ghusuri (WBPCB) on 2017-04-15; Pune hit AQI 435 at Alandi (IITM) on 2024-01-29.
Station-level disparity
Howrah spans 5 CPCB stations with a 116-point spread (min 111, max 227); Pune spans 12 stations with a 54-point spread (min 68, max 122).
Verdict
🏆 Pune has better air quality with an AQI of 36 compared to Howrah's 117. That's a significant difference of 81 points.