Karnal vs Puducherry
Side-by-side air quality comparison between Karnal 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 | Karnal | Puducherry |
|---|---|---|
| PM2.5(µg/m³) | 130.90 | 16.40 |
| PM10(µg/m³) | 553.20 | 19.20 |
| NO₂(µg/m³) | 43.30 | 18.50 |
| SO₂(µg/m³) | 17.00 | 8.80 |
| O₃(µg/m³) | 43.00 | 37.00 |
| CO(µg/m³) | 906.00 | 394.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Karnal averaged an AQI of 102 while Puducherry averaged 55 — a 47-point (85%) gap, with Karnal the more polluted and Puducherry the cleaner of the two. On 1283 days when both cities reported, Puducherry was cleaner on 1063 of them; the average daily gap was 66 AQI points.
Seasonality & days
Karnal peaks in November, while Puducherry peaks in December. Karnal logged 0.1% Severe days and 46.2% Good-or-Satisfactory days; Puducherry was 0% Severe and 95.4% Good-or-Satisfactory. Longest clean-air streaks: Karnal 53 days, Puducherry 117 days.
Year-over-year progress
Karnal has improved by 71 AQI points (41%) from 2019 to 2024; Puducherry has worsened by 1 AQI points (1.9%) over the same window. The worst recorded day for Karnal reached AQI 456 at Sector-12 (HSPCB) on 2019-11-03; Puducherry hit AQI 274 at Jawahar Nagar (PPCC) on 2022-10-25.
Station-level disparity
Karnal spans 1 CPCB stations with a 0-point spread (min 128, max 128); 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 Karnal's 473. That's a significant difference of 446 points.