Kollam vs Pratapgarh
Side-by-side air quality comparison between Kollam and Pratapgarh.
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 | Pratapgarh |
|---|---|---|
| PM2.5(µg/m³) | 4.70 | 59.30 |
| PM10(µg/m³) | 7.20 | 74.30 |
| NO₂(µg/m³) | 4.00 | 43.70 |
| SO₂(µg/m³) | 1.50 | 14.30 |
| O₃(µg/m³) | 31.00 | 41.00 |
| CO(µg/m³) | 91.00 | 320.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kollam averaged an AQI of 84 while Pratapgarh averaged 93 — a 9-point (11%) gap, with Pratapgarh the more polluted and Kollam the cleaner of the two. On 487 days when both cities reported, Kollam was cleaner on 302 of them; the average daily gap was 39 AQI points.
Seasonality & days
Kollam peaks in January, while Pratapgarh peaks in November. Kollam logged 0% Severe days and 81% Good-or-Satisfactory days; Pratapgarh was 0% Severe and 59.9% Good-or-Satisfactory. Longest clean-air streaks: Kollam 65 days, Pratapgarh 49 days.
Year-over-year progress
Kollam has improved by 2 AQI points (2.3%) from 2020 to 2024; Pratapgarh has improved by 10 AQI points (9.7%) over the same window. The worst recorded day for Kollam reached AQI 272 at Polayathode Kollam (PCB) on 2024-04-06; Pratapgarh hit AQI 314 at Pragati Nagar (RSPCB) on 2023-12-25.
Station-level disparity
Kollam spans 1 CPCB stations with a 0-point spread (min 84, max 84); Pratapgarh spans 1 stations with a 0-point spread (min 97, max 97).
Verdict
🏆 Kollam has better air quality with an AQI of 8 compared to Pratapgarh's 99. That's a significant difference of 91 points.