Kanchipuram vs Perundurai
Side-by-side air quality comparison between Kanchipuram 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 | Kanchipuram | Perundurai |
|---|---|---|
| PM2.5(µg/m³) | 9.70 | 6.80 |
| PM10(µg/m³) | 11.70 | 8.00 |
| NO₂(µg/m³) | 12.20 | 11.30 |
| SO₂(µg/m³) | 4.60 | 3.20 |
| O₃(µg/m³) | 41.00 | 32.00 |
| CO(µg/m³) | 265.00 | 159.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kanchipuram averaged an AQI of 51 while Perundurai averaged 75 — a 24-point (47%) gap, with Perundurai the more polluted and Kanchipuram the cleaner of the two. On 32 days when both cities reported, Kanchipuram was cleaner on 26 of them; the average daily gap was 39 AQI points.
Seasonality & days
Kanchipuram peaks in February, while Perundurai peaks in November. Kanchipuram logged 0% Severe days and 94% Good-or-Satisfactory days; Perundurai was 0% Severe and 80.7% Good-or-Satisfactory. Longest clean-air streaks: Kanchipuram 18 days, Perundurai 13 days.
Year-over-year progress
The worst recorded day for Kanchipuram reached AQI 320 at Kilambi (TNPCB) on 2023-05-22; Perundurai hit AQI 153 at SIPCOT Industrial Park (TNPCB) on 2024-11-12.
Station-level disparity
Kanchipuram spans 1 CPCB stations with a 0-point spread (min 57, max 57); Perundurai spans 1 stations with a 0-point spread (min 75, max 75).
Verdict
🏆 Perundurai has better air quality with an AQI of 11 compared to Kanchipuram's 16.