Amritsar vs Coimbatore
Side-by-side air quality comparison between Amritsar and Coimbatore.
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 | Coimbatore |
|---|---|---|
| PM2.5(µg/m³) | 68.50 | 2.50 |
| PM10(µg/m³) | 84.10 | 3.00 |
| NO₂(µg/m³) | 30.40 | 4.60 |
| SO₂(µg/m³) | 6.70 | 2.00 |
| O₃(µg/m³) | 41.00 | 40.00 |
| CO(µg/m³) | 756.00 | 163.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Amritsar averaged an AQI of 124 while Coimbatore averaged 66 — a 58-point (88%) gap, with Amritsar the more polluted and Coimbatore the cleaner of the two. On 948 days when both cities reported, Coimbatore was cleaner on 786 of them; the average daily gap was 61 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Amritsar logged 0.2% Severe days and 47.2% Good-or-Satisfactory days; Coimbatore was 0% Severe and 90.5% Good-or-Satisfactory. Longest clean-air streaks: Amritsar 40 days, Coimbatore 32 days.
Year-over-year progress
Amritsar has improved by 40 AQI points (24.4%) from 2017 to 2024; Coimbatore has improved by 5 AQI points (7%) over the same window. The worst recorded day for Amritsar reached AQI 459 at Golden Temple (PPCB) on 2018-06-14; Coimbatore hit AQI 279 at SIDCO Kurichi (TNPCB) on 2024-09-28.
Station-level disparity
Amritsar spans 1 CPCB stations with a 0-point spread (min 119, max 119); Coimbatore spans 2 stations with a 1-point spread (min 63, max 64).
Verdict
🏆 Coimbatore has better air quality with an AQI of 4 compared to Amritsar's 129. That's a significant difference of 125 points.