Kolār vs Perundurai
Side-by-side air quality comparison between Kolār 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 | Kolār | Perundurai |
|---|---|---|
| PM2.5(µg/m³) | 5.90 | 6.80 |
| PM10(µg/m³) | 7.20 | 8.00 |
| NO₂(µg/m³) | 10.90 | 11.30 |
| SO₂(µg/m³) | 4.70 | 3.20 |
| O₃(µg/m³) | 35.00 | 32.00 |
| CO(µg/m³) | 189.00 | 159.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kolār averaged an AQI of 65 while Perundurai averaged 75 — a 10-point (15%) gap, with Perundurai the more polluted and Kolār the cleaner of the two. On 45 days when both cities reported, Kolār was cleaner on 31 of them; the average daily gap was 29 AQI points.
Seasonality & days
Kolār peaks in September, while Perundurai peaks in November. Kolār logged 0.9% Severe days and 85.30000000000001% Good-or-Satisfactory days; Perundurai was 0% Severe and 80.7% Good-or-Satisfactory. Longest clean-air streaks: Kolār 17 days, Perundurai 13 days.
Year-over-year progress
The worst recorded day for Kolār reached AQI 500 at Tamaka Ind Area (KSPCB) on 2018-09-18; Perundurai hit AQI 153 at SIPCOT Industrial Park (TNPCB) on 2024-11-12.
Station-level disparity
Kolār spans 1 CPCB stations with a 0-point spread (min 71, max 71); Perundurai spans 1 stations with a 0-point spread (min 75, max 75).
Verdict
🏆 Kolār has better air quality with an AQI of 10 compared to Perundurai's 11.