Ariyalur vs Chandrapur
Side-by-side air quality comparison between Ariyalur and Chandrapur.
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 | Ariyalur | Chandrapur |
|---|---|---|
| PM2.5(µg/m³) | 6.80 | 22.50 |
| PM10(µg/m³) | 8.30 | 32.50 |
| NO₂(µg/m³) | 7.50 | 9.80 |
| SO₂(µg/m³) | 6.50 | 13.50 |
| O₃(µg/m³) | 43.00 | 87.00 |
| CO(µg/m³) | 133.00 | 183.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ariyalur averaged an AQI of 46 while Chandrapur averaged 123 — a 77-point (167%) gap, with Chandrapur the more polluted and Ariyalur the cleaner of the two. On 9 days when both cities reported, Ariyalur was cleaner on 8 of them; the average daily gap was 50 AQI points.
Seasonality & days
Both cities see their worst air in March on average. Ariyalur logged 0% Severe days and 93.8% Good-or-Satisfactory days; Chandrapur was 0.3% Severe and 58.800000000000004% Good-or-Satisfactory. Longest clean-air streaks: Ariyalur 57 days, Chandrapur 37 days.
Year-over-year progress
Ariyalur has improved by 35 AQI points (43.2%) from 2022 to 2024; Chandrapur has improved by 1 AQI points (0.8%) over the same window. The worst recorded day for Ariyalur reached AQI 221 at Keelapalur (TNPCB) on 2024-04-07; Chandrapur hit AQI 500 at MIDC Khutala (MPCB) on 2017-11-14.
Station-level disparity
Ariyalur spans 1 CPCB stations with a 0-point spread (min 51, max 51); Chandrapur spans 1 stations with a 0-point spread (min 100, max 100).
Verdict
🏆 Ariyalur has better air quality with an AQI of 11 compared to Chandrapur's 38.