Ariyalur vs Hajipur
Side-by-side air quality comparison between Ariyalur and Hajipur.
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 | Hajipur |
|---|---|---|
| PM2.5(µg/m³) | 7.50 | 99.00 |
| PM10(µg/m³) | 9.90 | 111.80 |
| NO₂(µg/m³) | 8.40 | 49.30 |
| SO₂(µg/m³) | 5.00 | 18.10 |
| O₃(µg/m³) | 42.00 | 19.00 |
| CO(µg/m³) | 137.00 | 784.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ariyalur averaged an AQI of 46 while Hajipur averaged 173 — a 127-point (276%) gap, with Hajipur the more polluted and Ariyalur the cleaner of the two. On 586 days when both cities reported, Ariyalur was cleaner on 565 of them; the average daily gap was 119 AQI points.
Seasonality & days
Ariyalur peaks in March, while Hajipur peaks in December. Ariyalur logged 0% Severe days and 93.8% Good-or-Satisfactory days; Hajipur was 0.3% Severe and 36.6% Good-or-Satisfactory. Longest clean-air streaks: Ariyalur 57 days, Hajipur 36 days.
Year-over-year progress
Ariyalur has improved by 35 AQI points (43.2%) from 2022 to 2024; Hajipur has worsened by 74 AQI points (74.7%) over the same window. The worst recorded day for Ariyalur reached AQI 221 at Keelapalur (TNPCB) on 2024-04-07; Hajipur hit AQI 427 at Industrial Area (BSPCB) on 2024-11-12.
Station-level disparity
Ariyalur spans 1 CPCB stations with a 0-point spread (min 51, max 51); Hajipur spans 1 stations with a 0-point spread (min 149, max 149).
Verdict
🏆 Ariyalur has better air quality with an AQI of 13 compared to Hajipur's 231. That's a significant difference of 218 points.