Asansol vs Tumkur
Side-by-side air quality comparison between Asansol and Tumkur.
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 | Tumkur |
|---|---|---|
| PM2.5(µg/m³) | 89.60 | 3.70 |
| PM10(µg/m³) | 95.50 | 4.60 |
| NO₂(µg/m³) | 48.70 | 7.70 |
| SO₂(µg/m³) | 82.10 | 1.50 |
| O₃(µg/m³) | 39.00 | 32.00 |
| CO(µg/m³) | 708.00 | 124.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Asansol averaged an AQI of 145 while Tumkur averaged 88 — a 57-point (65%) gap, with Asansol the more polluted and Tumkur the cleaner of the two. On 312 days when both cities reported, Tumkur was cleaner on 244 of them; the average daily gap was 82 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; Tumkur was 0% Severe and 54% Good-or-Satisfactory. Longest clean-air streaks: Asansol 44 days, Tumkur 20 days.
Year-over-year progress
Asansol has worsened by 12 AQI points (9%) from 2018 to 2024; Tumkur has improved by 69 AQI points (43.9%) over the same window. The worst recorded day for Asansol reached AQI 394 at Court Area (WBPCB) on 2022-12-13; Tumkur hit AQI 355 at Thimmalapura (KSPCB) on 2023-02-15.
Station-level disparity
Asansol spans 4 CPCB stations with a 40-point spread (min 123, max 163); Tumkur spans 1 stations with a 0-point spread (min 97, max 97).
Verdict
🏆 Tumkur has better air quality with an AQI of 6 compared to Asansol's 199. That's a significant difference of 193 points.