Ajmer vs Asansol
Side-by-side air quality comparison between Ajmer and Asansol.
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 | Ajmer | Asansol |
|---|---|---|
| PM2.5(µg/m³) | 19.40 | 89.60 |
| PM10(µg/m³) | 41.90 | 95.50 |
| NO₂(µg/m³) | 4.60 | 48.70 |
| SO₂(µg/m³) | 4.30 | 82.10 |
| O₃(µg/m³) | 57.00 | 39.00 |
| CO(µg/m³) | 155.00 | 708.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2022, Ajmer averaged an AQI of 112 while Asansol averaged 145 — a 33-point (29%) gap, with Asansol the more polluted and Ajmer the cleaner of the two. On 1548 days when both cities reported, Ajmer was cleaner on 857 of them; the average daily gap was 61 AQI points.
Seasonality & days
Ajmer peaks in November, while Asansol peaks in December. Ajmer logged 0% Severe days and 54.300000000000004% Good-or-Satisfactory days; Asansol was 0% Severe and 43.3% Good-or-Satisfactory. Longest clean-air streaks: Ajmer 94 days, Asansol 44 days.
Year-over-year progress
Ajmer has improved by 22 AQI points (16.4%) from 2017 to 2022; Asansol has worsened by 12 AQI points (9%) over the same window. The worst recorded day for Ajmer reached AQI 357 at Civil Lines (RSPCB) on 2021-03-31; Asansol hit AQI 394 at Court Area (WBPCB) on 2022-12-13.
Station-level disparity
Ajmer spans 1 CPCB stations with a 0-point spread (min 102, max 102); Asansol spans 4 stations with a 40-point spread (min 123, max 163).
Verdict
🏆 Ajmer has better air quality with an AQI of 42 compared to Asansol's 199. That's a significant difference of 157 points.