Amritsar vs Howrah
Side-by-side air quality comparison between Amritsar and Howrah.
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 | Howrah |
|---|---|---|
| PM2.5(µg/m³) | 54.10 | 64.70 |
| PM10(µg/m³) | 70.50 | 69.40 |
| NO₂(µg/m³) | 20.20 | 18.10 |
| SO₂(µg/m³) | 7.10 | 13.10 |
| O₃(µg/m³) | 66.00 | 86.00 |
| CO(µg/m³) | 610.00 | 421.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Amritsar averaged an AQI of 124 while Howrah averaged 126 — a 2-point (2%) gap, with Howrah the more polluted and Amritsar the cleaner of the two. On 2072 days when both cities reported, Amritsar was cleaner on 1200 of them; the average daily gap was 86 AQI points.
Seasonality & days
Amritsar peaks in November, while Howrah peaks in December. Amritsar logged 0.2% Severe days and 47.2% Good-or-Satisfactory days; Howrah was 0.7% Severe and 48.7% Good-or-Satisfactory. Longest clean-air streaks: Amritsar 40 days, Howrah 120 days.
Year-over-year progress
Amritsar has improved by 40 AQI points (24.4%) from 2017 to 2024; Howrah has improved by 32 AQI points (20.3%) over the same window. The worst recorded day for Amritsar reached AQI 459 at Golden Temple (PPCB) on 2018-06-14; Howrah hit AQI 500 at Ghusuri (WBPCB) on 2017-04-15.
Station-level disparity
Amritsar spans 1 CPCB stations with a 0-point spread (min 119, max 119); Howrah spans 5 stations with a 116-point spread (min 111, max 227).
Verdict
🏆 Amritsar has better air quality with an AQI of 90 compared to Howrah's 117.