Kanchipuram vs Kollam
Side-by-side air quality comparison between Kanchipuram and Kollam.
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
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kanchipuram averaged an AQI of 51 while Kollam averaged 84 — a 33-point (65%) gap, with Kollam the more polluted and Kanchipuram the cleaner of the two. On 283 days when both cities reported, Kanchipuram was cleaner on 227 of them; the average daily gap was 30 AQI points.
Seasonality & days
Kanchipuram peaks in February, while Kollam peaks in January. Kanchipuram logged 0% Severe days and 94% Good-or-Satisfactory days; Kollam was 0% Severe and 81% Good-or-Satisfactory. Longest clean-air streaks: Kanchipuram 18 days, Kollam 65 days.
Year-over-year progress
Kanchipuram has improved by 18 AQI points (26.1%) from 2022 to 2024; Kollam has improved by 2 AQI points (2.3%) over the same window. The worst recorded day for Kanchipuram reached AQI 320 at Kilambi (TNPCB) on 2023-05-22; Kollam hit AQI 272 at Polayathode Kollam (PCB) on 2024-04-06.
Station-level disparity
Kanchipuram spans 1 CPCB stations with a 0-point spread (min 57, max 57); Kollam spans 1 stations with a 0-point spread (min 84, max 84).