Ariyalur vs Asansol
Side-by-side air quality comparison between Ariyalur 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
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ariyalur averaged an AQI of 46 while Asansol averaged 145 — a 99-point (215%) gap, with Asansol the more polluted and Ariyalur the cleaner of the two. On 314 days when both cities reported, Ariyalur was cleaner on 308 of them; the average daily gap was 125 AQI points.
Seasonality & days
Ariyalur peaks in March, while Asansol peaks in December. Ariyalur logged 0% Severe days and 93.8% Good-or-Satisfactory days; Asansol was 0% Severe and 43.3% Good-or-Satisfactory. Longest clean-air streaks: Ariyalur 57 days, Asansol 44 days.
Year-over-year progress
Ariyalur has improved by 35 AQI points (43.2%) from 2022 to 2024; Asansol has worsened by 12 AQI points (9%) over the same window. The worst recorded day for Ariyalur reached AQI 221 at Keelapalur (TNPCB) on 2024-04-07; Asansol hit AQI 394 at Court Area (WBPCB) on 2022-12-13.
Station-level disparity
Ariyalur spans 1 CPCB stations with a 0-point spread (min 51, max 51); Asansol spans 4 stations with a 40-point spread (min 123, max 163).