Dewās vs Saharsa
Side-by-side air quality comparison between Dewās 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 | Dewās | Saharsa |
|---|---|---|
| PM2.5(µg/m³) | 31.30 | 99.90 |
| PM10(µg/m³) | 47.80 | 105.70 |
| NO₂(µg/m³) | 7.10 | 26.10 |
| SO₂(µg/m³) | 15.10 | 13.00 |
| O₃(µg/m³) | 66.00 | 62.00 |
| CO(µg/m³) | 208.00 | 670.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Dewās averaged an AQI of 98 while Saharsa averaged 139 — a 41-point (42%) gap, with Saharsa the more polluted and Dewās the cleaner of the two. On 833 days when both cities reported, Dewās was cleaner on 659 of them; the average daily gap was 99 AQI points.
Seasonality & days
Dewās peaks in December, while Saharsa peaks in January. Dewās logged 0% Severe days and 47.7% Good-or-Satisfactory days; Saharsa was 1.4% Severe and 28.4% Good-or-Satisfactory. Longest clean-air streaks: Dewās 101 days, Saharsa 20 days.
Year-over-year progress
Dewās has improved by 48 AQI points (32.9%) from 2017 to 2024; Saharsa has improved by 139 AQI points (50%) over the same window. The worst recorded day for Dewās reached AQI 327 at Bhopal Chauraha (MPPCB) on 2023-07-01; Saharsa hit AQI 454 at Police Line (BSPCB) on 2022-12-13.
Station-level disparity
Dewās spans 1 CPCB stations with a 0-point spread (min 106, max 106); Saharsa spans 1 stations with a 0-point spread (min 188, max 188).
Verdict
🏆 Dewās has better air quality with an AQI of 53 compared to Saharsa's 234. That's a significant difference of 181 points.