Karnal vs Siliguri
Side-by-side air quality comparison between Karnal and Siliguri.
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 | Siliguri |
|---|---|---|
| PM2.5(µg/m³) | 130.90 | 77.80 |
| PM10(µg/m³) | 553.20 | 98.30 |
| NO₂(µg/m³) | 43.30 | 11.30 |
| SO₂(µg/m³) | 17.00 | 6.80 |
| O₃(µg/m³) | 43.00 | 115.00 |
| CO(µg/m³) | 906.00 | 523.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Karnal averaged an AQI of 102 while Siliguri averaged 81 — a 21-point (26%) gap, with Karnal the more polluted and Siliguri the cleaner of the two. On 1487 days when both cities reported, Siliguri was cleaner on 996 of them; the average daily gap was 75 AQI points.
Seasonality & days
Karnal peaks in November, while Siliguri peaks in February. Karnal logged 0.1% Severe days and 46.2% Good-or-Satisfactory days; Siliguri was 0.1% Severe and 61.8% Good-or-Satisfactory. Longest clean-air streaks: Karnal 53 days, Siliguri 180 days.
Year-over-year progress
Karnal has improved by 71 AQI points (41%) from 2019 to 2024; Siliguri has improved by 39 AQI points (32.5%) over the same window. The worst recorded day for Karnal reached AQI 456 at Sector-12 (HSPCB) on 2019-11-03; Siliguri hit AQI 415 at Ward-32 Bapupara (WBPCB) on 2018-02-08.
Station-level disparity
Karnal spans 1 CPCB stations with a 0-point spread (min 128, max 128); Siliguri spans 1 stations with a 0-point spread (min 107, max 107).
Verdict
🏆 Siliguri has better air quality with an AQI of 160 compared to Karnal's 473. That's a significant difference of 313 points.