Chapra vs Karnal
Side-by-side air quality comparison between Chapra and Karnal.
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 | Chapra | Karnal |
|---|---|---|
| PM2.5(µg/m³) | 102.90 | 130.90 |
| PM10(µg/m³) | 117.10 | 553.20 |
| NO₂(µg/m³) | 42.70 | 43.30 |
| SO₂(µg/m³) | 15.30 | 17.00 |
| O₃(µg/m³) | 46.00 | 43.00 |
| CO(µg/m³) | 805.00 | 906.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chapra averaged an AQI of 149 while Karnal averaged 102 — a 47-point (46%) gap, with Chapra the more polluted and Karnal the cleaner of the two. On 908 days when both cities reported, Karnal was cleaner on 731 of them; the average daily gap was 102 AQI points.
Seasonality & days
Chapra peaks in January, while Karnal peaks in November. Chapra logged 2.4% Severe days and 26.8% Good-or-Satisfactory days; Karnal was 0.1% Severe and 46.2% Good-or-Satisfactory. Longest clean-air streaks: Chapra 14 days, Karnal 53 days.
Year-over-year progress
Chapra has improved by 181 AQI points (54.8%) from 2021 to 2024; Karnal has improved by 71 AQI points (41%) over the same window. The worst recorded day for Chapra reached AQI 452 at Darshan Nagar (BSPCB) on 2022-12-20; Karnal hit AQI 456 at Sector-12 (HSPCB) on 2019-11-03.
Station-level disparity
Chapra spans 1 CPCB stations with a 0-point spread (min 195, max 195); Karnal spans 1 stations with a 0-point spread (min 128, max 128).
Verdict
🏆 Chapra has better air quality with an AQI of 244 compared to Karnal's 473. That's a significant difference of 229 points.