Ariyalur vs Dewās
Side-by-side air quality comparison between Ariyalur and Dewās.
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 Dewās averaged 98 — a 52-point (113%) gap, with Dewās the more polluted and Ariyalur the cleaner of the two. On 540 days when both cities reported, Ariyalur was cleaner on 494 of them; the average daily gap was 56 AQI points.
Seasonality & days
Ariyalur peaks in March, while Dewās peaks in December. Ariyalur logged 0% Severe days and 93.8% Good-or-Satisfactory days; Dewās was 0% Severe and 47.7% Good-or-Satisfactory. Longest clean-air streaks: Ariyalur 57 days, Dewās 101 days.
Year-over-year progress
Ariyalur has improved by 35 AQI points (43.2%) from 2022 to 2024; Dewās has improved by 48 AQI points (32.9%) over the same window. The worst recorded day for Ariyalur reached AQI 221 at Keelapalur (TNPCB) on 2024-04-07; Dewās hit AQI 327 at Bhopal Chauraha (MPPCB) on 2023-07-01.
Station-level disparity
Ariyalur spans 1 CPCB stations with a 0-point spread (min 51, max 51); Dewās spans 1 stations with a 0-point spread (min 106, max 106).