Ariyalur vs Pratapgarh
Side-by-side air quality comparison between Ariyalur and Pratapgarh.
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 | Pratapgarh |
|---|---|---|
| PM2.5(µg/m³) | 6.90 | 68.70 |
| PM10(µg/m³) | 8.80 | 89.90 |
| NO₂(µg/m³) | 8.10 | 61.90 |
| SO₂(µg/m³) | 5.20 | 12.70 |
| O₃(µg/m³) | 41.00 | 4.00 |
| CO(µg/m³) | 133.00 | 386.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ariyalur averaged an AQI of 46 while Pratapgarh averaged 93 — a 47-point (102%) gap, with Pratapgarh the more polluted and Ariyalur the cleaner of the two. On 504 days when both cities reported, Ariyalur was cleaner on 458 of them; the average daily gap was 51 AQI points.
Seasonality & days
Ariyalur peaks in March, while Pratapgarh peaks in November. Ariyalur logged 0% Severe days and 93.8% Good-or-Satisfactory days; Pratapgarh was 0% Severe and 59.9% Good-or-Satisfactory. Longest clean-air streaks: Ariyalur 57 days, Pratapgarh 49 days.
Year-over-year progress
Ariyalur has improved by 35 AQI points (43.2%) from 2022 to 2024; Pratapgarh has improved by 10 AQI points (9.7%) over the same window. The worst recorded day for Ariyalur reached AQI 221 at Keelapalur (TNPCB) on 2024-04-07; Pratapgarh hit AQI 314 at Pragati Nagar (RSPCB) on 2023-12-25.
Station-level disparity
Ariyalur spans 1 CPCB stations with a 0-point spread (min 51, max 51); Pratapgarh spans 1 stations with a 0-point spread (min 97, max 97).
Verdict
🏆 Ariyalur has better air quality with an AQI of 12 compared to Pratapgarh's 130. That's a significant difference of 118 points.