Ariyalur vs Samastipur
Side-by-side air quality comparison between Ariyalur and Samastipur.
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
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ariyalur averaged an AQI of 46 while Samastipur averaged 134 — a 88-point (191%) gap, with Samastipur the more polluted and Ariyalur the cleaner of the two. On 493 days when both cities reported, Ariyalur was cleaner on 477 of them; the average daily gap was 123 AQI points.
Seasonality & days
Ariyalur peaks in March, while Samastipur peaks in January. Ariyalur logged 0% Severe days and 93.8% Good-or-Satisfactory days; Samastipur was 1.4% Severe and 23.400000000000002% Good-or-Satisfactory. Longest clean-air streaks: Ariyalur 57 days, Samastipur 9 days.
Year-over-year progress
Ariyalur has improved by 35 AQI points (43.2%) from 2022 to 2024; Samastipur has improved by 84 AQI points (38.5%) over the same window. The worst recorded day for Ariyalur reached AQI 221 at Keelapalur (TNPCB) on 2024-04-07; Samastipur hit AQI 459 at DM Office Kasipur (BSPCB) on 2023-01-01.
Station-level disparity
Ariyalur spans 1 CPCB stations with a 0-point spread (min 51, max 51); Samastipur spans 1 stations with a 0-point spread (min 177, max 177).