Ariyalur vs Saharsa
Side-by-side air quality comparison between Ariyalur 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 | Ariyalur | Saharsa |
|---|---|---|
| CO(ppb) | 288.66 | 738.73 |
| NO2(ppb) | 4.77 | 3.06 |
| O3(ppb) | 13.60 | 15.05 |
| PM10(µg/m³) | 40.24 | 58.02 |
| PM2.5(µg/m³) | 6.37 | 21.37 |
| SO2(ppb) | 3.00 | 5.57 |
| NH3(ppb) | 24.44 | 25.09 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ariyalur averaged an AQI of 46 while Saharsa averaged 139 — a 93-point (202%) gap, with Saharsa the more polluted and Ariyalur the cleaner of the two. On 516 days when both cities reported, Ariyalur was cleaner on 494 of them; the average daily gap was 124 AQI points.
Seasonality & days
Ariyalur peaks in March, while Saharsa peaks in January. Ariyalur logged 0% Severe days and 93.8% Good-or-Satisfactory days; Saharsa was 1.4% Severe and 28.4% Good-or-Satisfactory. Longest clean-air streaks: Ariyalur 57 days, Saharsa 20 days.
Year-over-year progress
Ariyalur has improved by 35 AQI points (43.2%) from 2022 to 2024; Saharsa has improved by 139 AQI points (50%) over the same window. The worst recorded day for Ariyalur reached AQI 221 at Keelapalur (TNPCB) on 2024-04-07; Saharsa hit AQI 454 at Police Line (BSPCB) on 2022-12-13.
Station-level disparity
Ariyalur spans 1 CPCB stations with a 0-point spread (min 51, max 51); Saharsa spans 1 stations with a 0-point spread (min 188, max 188).
Verdict
🏆 Ariyalur has better air quality with an AQI of 40 compared to Saharsa's 59.