Asansol vs Karnal
Side-by-side air quality comparison between Asansol and Karnal.
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 | Karnal |
|---|---|---|
| PM2.5(µg/m³) | 94.30 | 107.60 |
| PM10(µg/m³) | 100.60 | 257.00 |
| NO₂(µg/m³) | 49.40 | 51.00 |
| SO₂(µg/m³) | 84.00 | 13.40 |
| O₃(µg/m³) | 41.00 | 17.00 |
| CO(µg/m³) | 775.00 | 1055.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Asansol averaged an AQI of 145 while Karnal averaged 102 — a 43-point (42%) gap, with Asansol the more polluted and Karnal the cleaner of the two. On 1568 days when both cities reported, Karnal was cleaner on 801 of them; the average daily gap was 71 AQI points.
Seasonality & days
Asansol peaks in December, while Karnal peaks in November. Asansol logged 0% Severe days and 43.3% Good-or-Satisfactory days; Karnal was 0.1% Severe and 46.2% Good-or-Satisfactory. Longest clean-air streaks: Asansol 44 days, Karnal 53 days.
Year-over-year progress
Asansol has worsened by 12 AQI points (9%) from 2018 to 2024; Karnal has improved by 71 AQI points (41%) over the same window. The worst recorded day for Asansol reached AQI 394 at Court Area (WBPCB) on 2022-12-13; Karnal hit AQI 456 at Sector-12 (HSPCB) on 2019-11-03.
Station-level disparity
Asansol spans 4 CPCB stations with a 40-point spread (min 123, max 163); Karnal spans 1 stations with a 0-point spread (min 128, max 128).
Verdict
🏆 Asansol has better air quality with an AQI of 215 compared to Karnal's 259.