Asansol vs Sirohi
Side-by-side air quality comparison between Asansol and Sirohi.
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 | Asansol | Sirohi |
|---|---|---|
| PM2.5(µg/m³) | 94.30 | 20.00 |
| PM10(µg/m³) | 100.60 | 34.70 |
| NO₂(µg/m³) | 49.40 | 4.30 |
| SO₂(µg/m³) | 84.00 | 2.90 |
| O₃(µg/m³) | 41.00 | 51.00 |
| CO(µg/m³) | 775.00 | 127.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Asansol averaged an AQI of 145 while Sirohi averaged 89 — a 56-point (63%) gap, with Asansol the more polluted and Sirohi the cleaner of the two. On 331 days when both cities reported, Sirohi was cleaner on 288 of them; the average daily gap was 96 AQI points.
Seasonality & days
Both cities see their worst air in December on average. Asansol logged 0% Severe days and 43.3% Good-or-Satisfactory days; Sirohi was 0% Severe and 69.2% Good-or-Satisfactory. Longest clean-air streaks: Asansol 44 days, Sirohi 41 days.
Year-over-year progress
Asansol has worsened by 12 AQI points (9%) from 2018 to 2024; Sirohi has improved by 4 AQI points (4.3%) over the same window. The worst recorded day for Asansol reached AQI 394 at Court Area (WBPCB) on 2022-12-13; Sirohi hit AQI 335 at Vedhaynath Colony (RSPCB) on 2024-12-26.
Station-level disparity
Asansol spans 4 CPCB stations with a 40-point spread (min 123, max 163); Sirohi spans 1 stations with a 0-point spread (min 90, max 90).
Verdict
🏆 Sirohi has better air quality with an AQI of 35 compared to Asansol's 215. That's a significant difference of 180 points.