Kollam vs Sangli
Side-by-side air quality comparison between Kollam and Sangli.
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 | Kollam | Sangli |
|---|---|---|
| PM2.5(µg/m³) | 4.60 | 13.30 |
| PM10(µg/m³) | 7.10 | 22.80 |
| NO₂(µg/m³) | 4.40 | 9.00 |
| SO₂(µg/m³) | 1.50 | 3.30 |
| O₃(µg/m³) | 30.00 | 31.00 |
| CO(µg/m³) | 89.00 | 125.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kollam averaged an AQI of 84 while Sangli averaged 85 — a 1-point (1%) gap, with Sangli the more polluted and Kollam the cleaner of the two. On 416 days when both cities reported, Sangli was cleaner on 233 of them; the average daily gap was 38 AQI points.
Seasonality & days
Kollam peaks in January, while Sangli peaks in February. Kollam logged 0% Severe days and 81% Good-or-Satisfactory days; Sangli was 0% Severe and 67.3% Good-or-Satisfactory. Longest clean-air streaks: Kollam 65 days, Sangli 116 days.
Year-over-year progress
Kollam has improved by 2 AQI points (2.3%) from 2020 to 2024; Sangli has worsened by 17 AQI points (25%) over the same window. The worst recorded day for Kollam reached AQI 272 at Polayathode Kollam (PCB) on 2024-04-06; Sangli hit AQI 254 at Vijay Nagar (MPCB) on 2024-09-24.
Station-level disparity
Kollam spans 1 CPCB stations with a 0-point spread (min 84, max 84); Sangli spans 1 stations with a 0-point spread (min 79, max 79).
Verdict
🏆 Kollam has better air quality with an AQI of 8 compared to Sangli's 23.