Ariyalur vs Sirohi
Side-by-side air quality comparison between Ariyalur and Sirohi.
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 | Sirohi |
|---|---|---|
| PM2.5(µg/m³) | 6.80 | 20.00 |
| PM10(µg/m³) | 8.30 | 34.70 |
| NO₂(µg/m³) | 7.50 | 4.30 |
| SO₂(µg/m³) | 6.50 | 2.90 |
| O₃(µg/m³) | 43.00 | 51.00 |
| CO(µg/m³) | 133.00 | 127.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ariyalur averaged an AQI of 46 while Sirohi averaged 89 — a 43-point (93%) gap, with Sirohi the more polluted and Ariyalur the cleaner of the two. On 458 days when both cities reported, Ariyalur was cleaner on 414 of them; the average daily gap was 45 AQI points.
Seasonality & days
Ariyalur peaks in March, while Sirohi peaks in December. Ariyalur logged 0% Severe days and 93.8% Good-or-Satisfactory days; Sirohi was 0% Severe and 69.2% Good-or-Satisfactory. Longest clean-air streaks: Ariyalur 57 days, Sirohi 41 days.
Year-over-year progress
Ariyalur has improved by 35 AQI points (43.2%) from 2022 to 2024; Sirohi has improved by 4 AQI points (4.3%) over the same window. The worst recorded day for Ariyalur reached AQI 221 at Keelapalur (TNPCB) on 2024-04-07; Sirohi hit AQI 335 at Vedhaynath Colony (RSPCB) on 2024-12-26.
Station-level disparity
Ariyalur spans 1 CPCB stations with a 0-point spread (min 51, max 51); Sirohi spans 1 stations with a 0-point spread (min 90, max 90).
Verdict
🏆 Ariyalur has better air quality with an AQI of 11 compared to Sirohi's 35.