Saharsa vs Sasaram
Side-by-side air quality comparison between Saharsa 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 | Saharsa | Sasaram |
|---|---|---|
| PM2.5(µg/m³) | 99.90 | 69.80 |
| PM10(µg/m³) | 105.70 | 80.30 |
| NO₂(µg/m³) | 26.10 | 15.10 |
| SO₂(µg/m³) | 13.00 | 14.40 |
| O₃(µg/m³) | 62.00 | 101.00 |
| CO(µg/m³) | 670.00 | 627.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Saharsa averaged an AQI of 139 while Sasaram averaged 109 — a 30-point (28%) gap, with Saharsa the more polluted and Sasaram the cleaner of the two. On 752 days when both cities reported, Sasaram was cleaner on 523 of them; the average daily gap was 73 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Saharsa logged 1.4% Severe days and 28.4% Good-or-Satisfactory days; Sasaram was 0.1% Severe and 37% Good-or-Satisfactory. Longest clean-air streaks: Saharsa 20 days, Sasaram 27 days.
Year-over-year progress
Saharsa has improved by 139 AQI points (50%) from 2021 to 2024; Sasaram has improved by 166 AQI points (60.4%) over the same window. The worst recorded day for Saharsa reached AQI 454 at Police Line (BSPCB) on 2022-12-13; Sasaram hit AQI 401 at Dada Peer (BSPCB) on 2021-11-28.
Station-level disparity
Saharsa spans 1 CPCB stations with a 0-point spread (min 188, max 188); 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 Saharsa's 234. That's a significant difference of 101 points.