Bharatpur vs Kollam
Side-by-side air quality comparison between Bharatpur 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
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Bharatpur | Kollam |
|---|---|---|
| PM2.5(µg/m³) | 56.90 | 5.50 |
| PM10(µg/m³) | 138.80 | 7.90 |
| NO₂(µg/m³) | 15.10 | 3.80 |
| SO₂(µg/m³) | 9.00 | 1.60 |
| O₃(µg/m³) | 80.00 | 33.00 |
| CO(µg/m³) | 510.00 | 96.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bharatpur averaged an AQI of 131 while Kollam averaged 84 — a 47-point (56%) gap, with Bharatpur the more polluted and Kollam the cleaner of the two. On 517 days when both cities reported, Kollam was cleaner on 405 of them; the average daily gap was 75 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Bharatpur logged 0% Severe days and 33.7% Good-or-Satisfactory days; Kollam was 0% Severe and 81% Good-or-Satisfactory. Longest clean-air streaks: Bharatpur 41 days, Kollam 65 days.
Year-over-year progress
Bharatpur has improved by 25 AQI points (16%) from 2023 to 2024; Kollam has improved by 2 AQI points (2.3%) over the same window. The worst recorded day for Bharatpur reached AQI 396 at Krishna Nagar (RSPCB) on 2023-11-14; Kollam hit AQI 272 at Polayathode Kollam (PCB) on 2024-04-06.
Station-level disparity
Bharatpur spans 1 CPCB stations with a 0-point spread (min 142, max 142); Kollam spans 1 stations with a 0-point spread (min 84, max 84).
Verdict
🏆 Kollam has better air quality with an AQI of 9 compared to Bharatpur's 127. That's a significant difference of 118 points.