Ariyalur vs Puducherry
Side-by-side air quality comparison between Ariyalur and Puducherry.
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 Puducherry averaged 55 — a 9-point (20%) gap, with Puducherry the more polluted and Ariyalur the cleaner of the two. On 586 days when both cities reported, Ariyalur was cleaner on 404 of them; the average daily gap was 19 AQI points.
Seasonality & days
Ariyalur peaks in March, while Puducherry peaks in December. Ariyalur logged 0% Severe days and 93.8% Good-or-Satisfactory days; Puducherry was 0% Severe and 95.4% Good-or-Satisfactory. Longest clean-air streaks: Ariyalur 57 days, Puducherry 117 days.
Year-over-year progress
Ariyalur has improved by 35 AQI points (43.2%) from 2022 to 2024; Puducherry has worsened by 1 AQI points (1.9%) over the same window. The worst recorded day for Ariyalur reached AQI 221 at Keelapalur (TNPCB) on 2024-04-07; Puducherry hit AQI 274 at Jawahar Nagar (PPCC) on 2022-10-25.
Station-level disparity
Ariyalur spans 1 CPCB stations with a 0-point spread (min 51, max 51); Puducherry spans 1 stations with a 0-point spread (min 56, max 56).