Howrah vs Sonipat
Side-by-side air quality comparison between Howrah and Sonipat.
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 | Sonipat |
|---|---|---|
| PM2.5(µg/m³) | 68.70 | 77.50 |
| PM10(µg/m³) | 72.60 | 154.10 |
| NO₂(µg/m³) | 22.20 | 50.80 |
| SO₂(µg/m³) | 11.50 | 35.90 |
| O₃(µg/m³) | 55.00 | 47.00 |
| CO(µg/m³) | 360.00 | 689.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Howrah averaged an AQI of 126 while Sonipat averaged 134 — a 8-point (6%) gap, with Sonipat the more polluted and Howrah the cleaner of the two. On 1532 days when both cities reported, Howrah was cleaner on 824 of them; the average daily gap was 86 AQI points.
Seasonality & days
Howrah peaks in December, while Sonipat peaks in November. Howrah logged 0.7% Severe days and 48.7% Good-or-Satisfactory days; Sonipat was 0.8% Severe and 26.5% Good-or-Satisfactory. Longest clean-air streaks: Howrah 120 days, Sonipat 21 days.
Year-over-year progress
Howrah has improved by 32 AQI points (20.3%) from 2016 to 2024; Sonipat has improved by 220 AQI points (62.1%) over the same window. The worst recorded day for Howrah reached AQI 500 at Ghusuri (WBPCB) on 2017-04-15; Sonipat hit AQI 455 at Murthal (HSPCB) on 2023-11-03.
Station-level disparity
Howrah spans 5 CPCB stations with a 116-point spread (min 111, max 227); Sonipat spans 1 stations with a 0-point spread (min 162, max 162).
Verdict
🏆 Howrah has better air quality with an AQI of 130 compared to Sonipat's 159.