Kanchipuram vs Kolār
Side-by-side air quality comparison between Kanchipuram and Kolār.
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 | Kolār |
|---|---|---|
| PM2.5(µg/m³) | 9.40 | 5.10 |
| PM10(µg/m³) | 11.10 | 6.20 |
| NO₂(µg/m³) | 10.40 | 8.80 |
| SO₂(µg/m³) | 4.60 | 4.30 |
| O₃(µg/m³) | 44.00 | 34.00 |
| CO(µg/m³) | 243.00 | 183.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kanchipuram averaged an AQI of 51 while Kolār averaged 65 — a 14-point (27%) gap, with Kolār the more polluted and Kanchipuram the cleaner of the two. On 210 days when both cities reported, Kanchipuram was cleaner on 175 of them; the average daily gap was 33 AQI points.
Seasonality & days
Kanchipuram peaks in February, while Kolār peaks in September. Kanchipuram logged 0% Severe days and 94% Good-or-Satisfactory days; Kolār was 0.9% Severe and 85.30000000000001% Good-or-Satisfactory. Longest clean-air streaks: Kanchipuram 18 days, Kolār 17 days.
Year-over-year progress
Kanchipuram has improved by 18 AQI points (26.1%) from 2022 to 2024; Kolār has improved by 56 AQI points (46.3%) over the same window. The worst recorded day for Kanchipuram reached AQI 320 at Kilambi (TNPCB) on 2023-05-22; Kolār hit AQI 500 at Tamaka Ind Area (KSPCB) on 2018-09-18.
Station-level disparity
Kanchipuram spans 1 CPCB stations with a 0-point spread (min 57, max 57); Kolār spans 1 stations with a 0-point spread (min 71, max 71).
Verdict
🏆 Kolār has better air quality with an AQI of 9 compared to Kanchipuram's 16.