Guwahati vs Puducherry
Side-by-side air quality comparison between Guwahati 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 | Guwahati | Puducherry |
|---|---|---|
| PM2.5(µg/m³) | 34.60 | 16.40 |
| PM10(µg/m³) | 39.60 | 19.20 |
| NO₂(µg/m³) | 4.10 | 18.50 |
| SO₂(µg/m³) | 4.60 | 8.80 |
| O₃(µg/m³) | 116.00 | 37.00 |
| CO(µg/m³) | 399.00 | 394.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Guwahati averaged an AQI of 123 while Puducherry averaged 55 — a 68-point (124%) gap, with Guwahati the more polluted and Puducherry the cleaner of the two. On 1371 days when both cities reported, Puducherry was cleaner on 1230 of them; the average daily gap was 93 AQI points.
Seasonality & days
Guwahati peaks in January, while Puducherry peaks in December. Guwahati logged 0.1% Severe days and 44.9% Good-or-Satisfactory days; Puducherry was 0% Severe and 95.4% Good-or-Satisfactory. Longest clean-air streaks: Guwahati 105 days, Puducherry 117 days.
Year-over-year progress
Guwahati has worsened by 14 AQI points (12.8%) from 2019 to 2024; Puducherry has worsened by 1 AQI points (1.9%) over the same window. The worst recorded day for Guwahati reached AQI 420 at Railway Colony (PCBA) on 2023-01-15; Puducherry hit AQI 274 at Jawahar Nagar (PPCC) on 2022-10-25.
Station-level disparity
Guwahati spans 4 CPCB stations with a 26-point spread (min 118, max 144); Puducherry spans 1 stations with a 0-point spread (min 56, max 56).
Verdict
🏆 Puducherry has better air quality with an AQI of 27 compared to Guwahati's 59.