Kolkata vs Panchkula
Side-by-side air quality comparison between Kolkata and Panchkula.
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 | Kolkata | Panchkula |
|---|---|---|
| PM2.5(µg/m³) | 64.70 | 46.30 |
| PM10(µg/m³) | 69.40 | 63.60 |
| NO₂(µg/m³) | 18.10 | 30.10 |
| SO₂(µg/m³) | 13.10 | 10.30 |
| O₃(µg/m³) | 86.00 | 64.00 |
| CO(µg/m³) | 428.00 | 602.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kolkata averaged an AQI of 101 while Panchkula averaged 117 — a 16-point (16%) gap, with Panchkula the more polluted and Kolkata the cleaner of the two. On 1579 days when both cities reported, Panchkula was cleaner on 1126 of them; the average daily gap was 86 AQI points.
Seasonality & days
Kolkata peaks in January, while Panchkula peaks in December. Kolkata logged 1% Severe days and 47.800000000000004% Good-or-Satisfactory days; Panchkula was 0.1% Severe and 61.9% Good-or-Satisfactory. Longest clean-air streaks: Kolkata 75 days, Panchkula 60 days.
Year-over-year progress
Kolkata has improved by 76 AQI points (42.9%) from 2017 to 2024; Panchkula has improved by 74 AQI points (38.7%) over the same window. The worst recorded day for Kolkata reached AQI 453 at Rabindra Bharati University (WBPCB) on 2019-01-23; Panchkula hit AQI 474 at Sector-6 Panchkula () on 2018-06-15.
Station-level disparity
Kolkata spans 7 CPCB stations with a 56-point spread (min 95, max 151); Panchkula spans 1 stations with a 0-point spread (min 102, max 102).
Verdict
🏆 Panchkula has better air quality with an AQI of 78 compared to Kolkata's 117.