Alwar vs Saharsa
Side-by-side air quality comparison between Alwar and Saharsa.
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 | Alwar | Saharsa |
|---|---|---|
| PM2.5(µg/m³) | 58.40 | 100.60 |
| PM10(µg/m³) | 169.00 | 109.00 |
| NO₂(µg/m³) | 17.10 | 40.40 |
| SO₂(µg/m³) | 7.70 | 12.20 |
| O₃(µg/m³) | 58.00 | 21.00 |
| CO(µg/m³) | 391.00 | 719.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Alwar averaged an AQI of 88 while Saharsa averaged 139 — a 51-point (58%) gap, with Saharsa the more polluted and Alwar the cleaner of the two. On 904 days when both cities reported, Alwar was cleaner on 728 of them; the average daily gap was 107 AQI points.
Seasonality & days
Alwar peaks in November, while Saharsa peaks in January. Alwar logged 0% Severe days and 70.2% Good-or-Satisfactory days; Saharsa was 1.4% Severe and 28.4% Good-or-Satisfactory. Longest clean-air streaks: Alwar 97 days, Saharsa 20 days.
Year-over-year progress
Alwar has improved by 125 AQI points (58.7%) from 2017 to 2024; Saharsa has improved by 139 AQI points (50%) over the same window. The worst recorded day for Alwar reached AQI 356 at Moti Doongri (RSPCB) on 2017-11-11; Saharsa hit AQI 454 at Police Line (BSPCB) on 2022-12-13.
Station-level disparity
Alwar spans 1 CPCB stations with a 0-point spread (min 95, max 95); Saharsa spans 1 stations with a 0-point spread (min 188, max 188).
Verdict
🏆 Alwar has better air quality with an AQI of 147 compared to Saharsa's 236. That's a significant difference of 89 points.