Jalandhar vs Kolkata
Side-by-side air quality comparison between Jalandhar and Kolkata.
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 | Jalandhar | Kolkata |
|---|---|---|
| PM2.5(µg/m³) | 88.50 | 68.70 |
| PM10(µg/m³) | 118.50 | 72.60 |
| NO₂(µg/m³) | 56.60 | 22.20 |
| SO₂(µg/m³) | 9.80 | 11.50 |
| O₃(µg/m³) | 15.00 | 55.00 |
| CO(µg/m³) | 657.00 | 364.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Jalandhar averaged an AQI of 106 while Kolkata averaged 101 — a 5-point (5%) gap, with Jalandhar the more polluted and Kolkata the cleaner of the two. On 2029 days when both cities reported, Jalandhar was cleaner on 1191 of them; the average daily gap was 75 AQI points.
Seasonality & days
Jalandhar peaks in November, while Kolkata peaks in January. Jalandhar logged 0% Severe days and 49.9% Good-or-Satisfactory days; Kolkata was 1% Severe and 47.800000000000004% Good-or-Satisfactory. Longest clean-air streaks: Jalandhar 73 days, Kolkata 75 days.
Year-over-year progress
Jalandhar has worsened by 5 AQI points (5%) from 2018 to 2024; Kolkata has improved by 76 AQI points (42.9%) over the same window. The worst recorded day for Jalandhar reached AQI 377 at Civil Line (PPCB) on 2019-10-28; Kolkata hit AQI 453 at Rabindra Bharati University (WBPCB) on 2019-01-23.
Station-level disparity
Jalandhar spans 1 CPCB stations with a 0-point spread (min 111, max 111); Kolkata spans 7 stations with a 56-point spread (min 95, max 151).
Verdict
🏆 Kolkata has better air quality with an AQI of 130 compared to Jalandhar's 195. That's a significant difference of 65 points.