Hyderabad vs Siliguri
Side-by-side air quality comparison between Hyderabad and Siliguri.
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 | Hyderabad | Siliguri |
|---|---|---|
| PM2.5(µg/m³) | 20.50 | 77.80 |
| PM10(µg/m³) | 27.90 | 98.30 |
| NO₂(µg/m³) | 10.40 | 11.30 |
| SO₂(µg/m³) | 5.30 | 6.80 |
| O₃(µg/m³) | 63.00 | 115.00 |
| CO(µg/m³) | 281.00 | 523.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Hyderabad averaged an AQI of 78 while Siliguri averaged 81 — a 3-point (4%) gap, with Siliguri the more polluted and Hyderabad the cleaner of the two. On 1910 days when both cities reported, Siliguri was cleaner on 1329 of them; the average daily gap was 59 AQI points.
Seasonality & days
Hyderabad peaks in December, while Siliguri peaks in February. Hyderabad logged 0.2% Severe days and 41.6% Good-or-Satisfactory days; Siliguri was 0.1% Severe and 61.8% Good-or-Satisfactory. Longest clean-air streaks: Hyderabad 71 days, Siliguri 180 days.
Year-over-year progress
Hyderabad has improved by 24 AQI points (23.5%) from 2016 to 2024; Siliguri has improved by 39 AQI points (32.5%) over the same window. The worst recorded day for Hyderabad reached AQI 500 at Sanathnagar (TSPCB) on 2024-04-28; Siliguri hit AQI 415 at Ward-32 Bapupara (WBPCB) on 2018-02-08.
Station-level disparity
Hyderabad spans 14 CPCB stations with a 35-point spread (min 62, max 97); Siliguri spans 1 stations with a 0-point spread (min 107, max 107).
Verdict
🏆 Hyderabad has better air quality with an AQI of 34 compared to Siliguri's 160. That's a significant difference of 126 points.