Asansol vs Koppal
Side-by-side air quality comparison between Asansol and Koppal.
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 | Koppal |
|---|---|---|
| PM2.5(µg/m³) | 64.50 | 7.90 |
| PM10(µg/m³) | 77.80 | 17.60 |
| NO₂(µg/m³) | 21.00 | 1.80 |
| SO₂(µg/m³) | 76.70 | 0.90 |
| O₃(µg/m³) | 198.00 | 69.00 |
| CO(µg/m³) | 620.00 | 120.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Asansol averaged an AQI of 145 while Koppal averaged 65 — a 80-point (123%) gap, with Asansol the more polluted and Koppal the cleaner of the two. On 850 days when both cities reported, Koppal was cleaner on 728 of them; the average daily gap was 87 AQI points.
Seasonality & days
Asansol peaks in December, while Koppal peaks in February. Asansol logged 0% Severe days and 43.3% Good-or-Satisfactory days; Koppal was 0% Severe and 85.5% Good-or-Satisfactory. Longest clean-air streaks: Asansol 44 days, Koppal 47 days.
Year-over-year progress
Asansol has worsened by 12 AQI points (9%) from 2018 to 2024; Koppal has improved by 31 AQI points (32.3%) over the same window. The worst recorded day for Asansol reached AQI 394 at Court Area (WBPCB) on 2022-12-13; Koppal hit AQI 384 at Diwator Nagar (KSPCB) on 2023-02-16.
Station-level disparity
Asansol spans 4 CPCB stations with a 40-point spread (min 123, max 163); Koppal spans 1 stations with a 0-point spread (min 70, max 70).
Verdict
🏆 Koppal has better air quality with an AQI of 18 compared to Asansol's 116. That's a significant difference of 98 points.