Ambala vs Saharsa
Side-by-side air quality comparison between Ambala 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 | Ambala | Saharsa |
|---|---|---|
| PM2.5(µg/m³) | 43.50 | 99.90 |
| PM10(µg/m³) | 126.20 | 105.70 |
| NO₂(µg/m³) | 10.30 | 26.10 |
| SO₂(µg/m³) | 12.30 | 13.00 |
| O₃(µg/m³) | 127.00 | 62.00 |
| CO(µg/m³) | 554.00 | 670.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ambala averaged an AQI of 94 while Saharsa averaged 139 — a 45-point (48%) gap, with Saharsa the more polluted and Ambala the cleaner of the two. On 822 days when both cities reported, Ambala was cleaner on 571 of them; the average daily gap was 93 AQI points.
Seasonality & days
Ambala peaks in November, while Saharsa peaks in January. Ambala logged 0.2% Severe days and 46.5% Good-or-Satisfactory days; Saharsa was 1.4% Severe and 28.4% Good-or-Satisfactory. Longest clean-air streaks: Ambala 44 days, Saharsa 20 days.
Year-over-year progress
Ambala has improved by 52 AQI points (35.6%) from 2019 to 2024; Saharsa has improved by 139 AQI points (50%) over the same window. The worst recorded day for Ambala reached AQI 452 at Patti Mehar (HSPCB) on 2020-11-04; Saharsa hit AQI 454 at Police Line (BSPCB) on 2022-12-13.
Station-level disparity
Ambala spans 1 CPCB stations with a 0-point spread (min 126, max 126); Saharsa spans 1 stations with a 0-point spread (min 188, max 188).
Verdict
🏆 Ambala has better air quality with an AQI of 118 compared to Saharsa's 234. That's a significant difference of 116 points.