Palwal vs Perundurai
Side-by-side air quality comparison between Palwal and Perundurai.
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 | Palwal | Perundurai |
|---|---|---|
| PM2.5(µg/m³) | 62.40 | 9.20 |
| PM10(µg/m³) | 136.40 | 10.30 |
| NO₂(µg/m³) | 19.70 | 10.50 |
| SO₂(µg/m³) | 10.50 | 3.60 |
| O₃(µg/m³) | 66.00 | 35.00 |
| CO(µg/m³) | 503.00 | 172.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Palwal averaged an AQI of 95 while Perundurai averaged 75 — a 20-point (27%) gap, with Palwal the more polluted and Perundurai the cleaner of the two. On 44 days when both cities reported, Perundurai was cleaner on 27 of them; the average daily gap was 58 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Palwal logged 0.2% Severe days and 47.800000000000004% Good-or-Satisfactory days; Perundurai was 0% Severe and 80.7% Good-or-Satisfactory. Longest clean-air streaks: Palwal 37 days, Perundurai 13 days.
Year-over-year progress
The worst recorded day for Palwal reached AQI 465 at Shyam Nagar (HSPCB) on 2019-11-14; Perundurai hit AQI 153 at SIPCOT Industrial Park (TNPCB) on 2024-11-12.
Station-level disparity
Palwal spans 1 CPCB stations with a 0-point spread (min 120, max 120); Perundurai spans 1 stations with a 0-point spread (min 75, max 75).
Verdict
🏆 Perundurai has better air quality with an AQI of 15 compared to Palwal's 125. That's a significant difference of 110 points.