Hajipur vs Siliguri
Side-by-side air quality comparison between Hajipur 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 | Hajipur | Siliguri |
|---|---|---|
| PM2.5(µg/m³) | 97.80 | 77.80 |
| PM10(µg/m³) | 109.40 | 98.30 |
| NO₂(µg/m³) | 40.50 | 11.30 |
| SO₂(µg/m³) | 18.90 | 6.80 |
| O₃(µg/m³) | 52.00 | 115.00 |
| CO(µg/m³) | 725.00 | 523.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Hajipur averaged an AQI of 173 while Siliguri averaged 81 — a 92-point (114%) gap, with Hajipur the more polluted and Siliguri the cleaner of the two. On 1104 days when both cities reported, Siliguri was cleaner on 891 of them; the average daily gap was 75 AQI points.
Seasonality & days
Hajipur peaks in December, while Siliguri peaks in February. Hajipur logged 0.3% Severe days and 36.6% Good-or-Satisfactory days; Siliguri was 0.1% Severe and 61.8% Good-or-Satisfactory. Longest clean-air streaks: Hajipur 36 days, Siliguri 180 days.
Year-over-year progress
Hajipur has worsened by 74 AQI points (74.7%) from 2020 to 2024; Siliguri has improved by 39 AQI points (32.5%) over the same window. The worst recorded day for Hajipur reached AQI 427 at Industrial Area (BSPCB) on 2024-11-12; Siliguri hit AQI 415 at Ward-32 Bapupara (WBPCB) on 2018-02-08.
Station-level disparity
Hajipur spans 1 CPCB stations with a 0-point spread (min 149, max 149); Siliguri spans 1 stations with a 0-point spread (min 107, max 107).
Verdict
🏆 Siliguri has better air quality with an AQI of 160 compared to Hajipur's 227. That's a significant difference of 67 points.