Howrah vs Hyderabad
Side-by-side air quality comparison between Howrah and Hyderabad.
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 | Howrah | Hyderabad |
|---|---|---|
| PM2.5(µg/m³) | 68.70 | 19.90 |
| PM10(µg/m³) | 72.60 | 27.50 |
| NO₂(µg/m³) | 22.20 | 11.90 |
| SO₂(µg/m³) | 11.50 | 5.60 |
| O₃(µg/m³) | 55.00 | 58.00 |
| CO(µg/m³) | 360.00 | 232.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Howrah averaged an AQI of 126 while Hyderabad averaged 78 — a 48-point (62%) gap, with Howrah the more polluted and Hyderabad the cleaner of the two. On 2297 days when both cities reported, Hyderabad was cleaner on 1230 of them; the average daily gap was 72 AQI points.
Seasonality & days
Both cities see their worst air in December on average. Howrah logged 0.7% Severe days and 48.7% Good-or-Satisfactory days; Hyderabad was 0.2% Severe and 41.6% Good-or-Satisfactory. Longest clean-air streaks: Howrah 120 days, Hyderabad 71 days.
Year-over-year progress
Howrah has improved by 32 AQI points (20.3%) from 2016 to 2024; Hyderabad has improved by 24 AQI points (23.5%) over the same window. The worst recorded day for Howrah reached AQI 500 at Ghusuri (WBPCB) on 2017-04-15; Hyderabad hit AQI 500 at Sanathnagar (TSPCB) on 2024-04-28.
Station-level disparity
Howrah spans 5 CPCB stations with a 116-point spread (min 111, max 227); Hyderabad spans 14 stations with a 35-point spread (min 62, max 97).
Verdict
🏆 Hyderabad has better air quality with an AQI of 33 compared to Howrah's 130. That's a significant difference of 97 points.