Ariyalur vs Sasaram
Side-by-side air quality comparison between Ariyalur 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 | Ariyalur | Sasaram |
|---|---|---|
| PM2.5(µg/m³) | 6.80 | 69.80 |
| PM10(µg/m³) | 8.30 | 80.30 |
| NO₂(µg/m³) | 7.50 | 15.10 |
| SO₂(µg/m³) | 6.50 | 14.40 |
| O₃(µg/m³) | 43.00 | 101.00 |
| CO(µg/m³) | 133.00 | 627.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ariyalur averaged an AQI of 46 while Sasaram averaged 109 — a 63-point (137%) gap, with Sasaram the more polluted and Ariyalur the cleaner of the two. On 486 days when both cities reported, Ariyalur was cleaner on 416 of them; the average daily gap was 80 AQI points.
Seasonality & days
Ariyalur peaks in March, while Sasaram peaks in January. Ariyalur logged 0% Severe days and 93.8% Good-or-Satisfactory days; Sasaram was 0.1% Severe and 37% Good-or-Satisfactory. Longest clean-air streaks: Ariyalur 57 days, Sasaram 27 days.
Year-over-year progress
Ariyalur has improved by 35 AQI points (43.2%) from 2022 to 2024; Sasaram has improved by 166 AQI points (60.4%) over the same window. The worst recorded day for Ariyalur reached AQI 221 at Keelapalur (TNPCB) on 2024-04-07; Sasaram hit AQI 401 at Dada Peer (BSPCB) on 2021-11-28.
Station-level disparity
Ariyalur spans 1 CPCB stations with a 0-point spread (min 51, max 51); Sasaram spans 1 stations with a 0-point spread (min 148, max 148).
Verdict
🏆 Ariyalur has better air quality with an AQI of 11 compared to Sasaram's 133. That's a significant difference of 122 points.