Chittoor vs Kollam
Side-by-side air quality comparison between Chittoor 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, Chittoor averaged an AQI of 76 while Kollam averaged 84 — a 8-point (11%) gap, with Kollam the more polluted and Chittoor the cleaner of the two. On 466 days when both cities reported, Chittoor was cleaner on 316 of them; the average daily gap was 34 AQI points.
Seasonality & days
Chittoor peaks in October, while Kollam peaks in January. Chittoor logged 0% Severe days and 84.9% Good-or-Satisfactory days; Kollam was 0% Severe and 81% Good-or-Satisfactory. Longest clean-air streaks: Chittoor 37 days, Kollam 65 days.
Year-over-year progress
Chittoor has worsened by 5 AQI points (7%) from 2022 to 2024; Kollam has improved by 2 AQI points (2.3%) over the same window. The worst recorded day for Chittoor reached AQI 348 at Gangineni Cheruvu (APPCB) on 2023-11-13; Kollam hit AQI 272 at Polayathode Kollam (PCB) on 2024-04-06.
Station-level disparity
Chittoor spans 1 CPCB stations with a 0-point spread (min 72, max 72); Kollam spans 1 stations with a 0-point spread (min 84, max 84).