Dewās vs Puducherry
Side-by-side air quality comparison between Dewās 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
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Dewās | Puducherry |
|---|---|---|
| PM2.5(µg/m³) | 32.60 | 12.20 |
| PM10(µg/m³) | 47.00 | 14.50 |
| NO₂(µg/m³) | 6.50 | 18.70 |
| SO₂(µg/m³) | 12.50 | 9.00 |
| O₃(µg/m³) | 74.00 | 33.00 |
| CO(µg/m³) | 243.00 | 402.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Dewās averaged an AQI of 98 while Puducherry averaged 55 — a 43-point (78%) gap, with Dewās the more polluted and Puducherry the cleaner of the two. On 1263 days when both cities reported, Puducherry was cleaner on 1023 of them; the average daily gap was 49 AQI points.
Seasonality & days
Both cities see their worst air in December on average. Dewās logged 0% Severe days and 47.7% Good-or-Satisfactory days; Puducherry was 0% Severe and 95.4% Good-or-Satisfactory. Longest clean-air streaks: Dewās 101 days, Puducherry 117 days.
Year-over-year progress
Dewās has improved by 48 AQI points (32.9%) from 2017 to 2024; Puducherry has worsened by 1 AQI points (1.9%) over the same window. The worst recorded day for Dewās reached AQI 327 at Bhopal Chauraha (MPPCB) on 2023-07-01; Puducherry hit AQI 274 at Jawahar Nagar (PPCC) on 2022-10-25.
Station-level disparity
Dewās spans 1 CPCB stations with a 0-point spread (min 106, max 106); Puducherry spans 1 stations with a 0-point spread (min 56, max 56).
Verdict
🏆 Puducherry has better air quality with an AQI of 20 compared to Dewās's 55.