Alwar vs Sasaram
Side-by-side air quality comparison between Alwar and Sasaram.
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 | Sasaram |
|---|---|---|
| PM2.5(µg/m³) | 58.70 | 69.80 |
| PM10(µg/m³) | 158.30 | 80.30 |
| NO₂(µg/m³) | 14.30 | 15.10 |
| SO₂(µg/m³) | 8.50 | 14.40 |
| O₃(µg/m³) | 76.00 | 101.00 |
| CO(µg/m³) | 357.00 | 627.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Alwar averaged an AQI of 88 while Sasaram averaged 109 — a 21-point (24%) gap, with Sasaram the more polluted and Alwar the cleaner of the two. On 921 days when both cities reported, Alwar was cleaner on 630 of them; the average daily gap was 72 AQI points.
Seasonality & days
Alwar peaks in November, while Sasaram peaks in January. Alwar logged 0% Severe days and 70.2% Good-or-Satisfactory days; Sasaram was 0.1% Severe and 37% Good-or-Satisfactory. Longest clean-air streaks: Alwar 97 days, Sasaram 27 days.
Year-over-year progress
Alwar has improved by 125 AQI points (58.7%) from 2017 to 2024; Sasaram has improved by 166 AQI points (60.4%) over the same window. The worst recorded day for Alwar reached AQI 356 at Moti Doongri (RSPCB) on 2017-11-11; Sasaram hit AQI 401 at Dada Peer (BSPCB) on 2021-11-28.
Station-level disparity
Alwar spans 1 CPCB stations with a 0-point spread (min 95, max 95); Sasaram spans 1 stations with a 0-point spread (min 148, max 148).
Verdict
🏆 Sasaram has better air quality with an AQI of 133 compared to Alwar's 139.