Amritsar vs Kollam
Side-by-side air quality comparison between Amritsar 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 | Amritsar | Kollam |
|---|---|---|
| PM2.5(µg/m³) | 46.20 | 4.90 |
| PM10(µg/m³) | 66.80 | 7.60 |
| NO₂(µg/m³) | 16.30 | 2.70 |
| SO₂(µg/m³) | 10.20 | 1.30 |
| O₃(µg/m³) | 114.00 | 40.00 |
| CO(µg/m³) | 347.00 | 107.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Amritsar averaged an AQI of 124 while Kollam averaged 84 — a 40-point (48%) gap, with Amritsar the more polluted and Kollam the cleaner of the two. On 1333 days when both cities reported, Kollam was cleaner on 965 of them; the average daily gap was 52 AQI points.
Seasonality & days
Amritsar peaks in November, while Kollam peaks in January. Amritsar logged 0.2% Severe days and 47.2% Good-or-Satisfactory days; Kollam was 0% Severe and 81% Good-or-Satisfactory. Longest clean-air streaks: Amritsar 40 days, Kollam 65 days.
Year-over-year progress
Amritsar has improved by 40 AQI points (24.4%) from 2017 to 2024; Kollam has improved by 2 AQI points (2.3%) over the same window. The worst recorded day for Amritsar reached AQI 459 at Golden Temple (PPCB) on 2018-06-14; Kollam hit AQI 272 at Polayathode Kollam (PCB) on 2024-04-06.
Station-level disparity
Amritsar spans 1 CPCB stations with a 0-point spread (min 119, max 119); Kollam spans 1 stations with a 0-point spread (min 84, max 84).
Verdict
🏆 Kollam has better air quality with an AQI of 8 compared to Amritsar's 77. That's a significant difference of 69 points.