Perundurai vs Sirohi
Side-by-side air quality comparison between Perundurai 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 | Perundurai | Sirohi |
|---|---|---|
| PM2.5(µg/m³) | 9.20 | 20.00 |
| PM10(µg/m³) | 10.30 | 34.70 |
| NO₂(µg/m³) | 10.50 | 4.30 |
| SO₂(µg/m³) | 3.60 | 2.90 |
| O₃(µg/m³) | 35.00 | 51.00 |
| CO(µg/m³) | 172.00 | 127.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Perundurai averaged an AQI of 75 while Sirohi averaged 89 — a 14-point (19%) gap, with Sirohi the more polluted and Perundurai the cleaner of the two. On 55 days when both cities reported, Perundurai was cleaner on 41 of them; the average daily gap was 62 AQI points.
Seasonality & days
Perundurai peaks in November, while Sirohi peaks in December. Perundurai logged 0% Severe days and 80.7% Good-or-Satisfactory days; Sirohi was 0% Severe and 69.2% Good-or-Satisfactory. Longest clean-air streaks: Perundurai 13 days, Sirohi 41 days.
Year-over-year progress
The worst recorded day for Perundurai reached AQI 153 at SIPCOT Industrial Park (TNPCB) on 2024-11-12; Sirohi hit AQI 335 at Vedhaynath Colony (RSPCB) on 2024-12-26.
Station-level disparity
Perundurai spans 1 CPCB stations with a 0-point spread (min 75, max 75); Sirohi spans 1 stations with a 0-point spread (min 90, max 90).
Verdict
🏆 Perundurai has better air quality with an AQI of 15 compared to Sirohi's 35.