Kolkata vs Moradabad
Side-by-side air quality comparison between Kolkata and Moradabad.
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 | Moradabad |
|---|---|---|
| PM2.5(µg/m³) | 64.70 | 60.10 |
| PM10(µg/m³) | 69.40 | 75.00 |
| NO₂(µg/m³) | 18.10 | 26.10 |
| SO₂(µg/m³) | 13.10 | 9.10 |
| O₃(µg/m³) | 86.00 | 69.00 |
| CO(µg/m³) | 428.00 | 1058.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kolkata averaged an AQI of 101 while Moradabad averaged 99 — a 2-point (2%) gap, with Kolkata the more polluted and Moradabad the cleaner of the two. On 1707 days when both cities reported, Kolkata was cleaner on 1079 of them; the average daily gap was 73 AQI points.
Seasonality & days
Kolkata peaks in January, while Moradabad peaks in November. Kolkata logged 1% Severe days and 47.800000000000004% Good-or-Satisfactory days; Moradabad was 2.8% Severe and 25% Good-or-Satisfactory. Longest clean-air streaks: Kolkata 75 days, Moradabad 55 days.
Year-over-year progress
Kolkata has improved by 76 AQI points (42.9%) from 2017 to 2024; Moradabad has improved by 223 AQI points (69.3%) over the same window. The worst recorded day for Kolkata reached AQI 453 at Rabindra Bharati University (WBPCB) on 2019-01-23; Moradabad hit AQI 489 at Lajpat Nagar (UPPCB) on 2020-11-05.
Station-level disparity
Kolkata spans 7 CPCB stations with a 56-point spread (min 95, max 151); Moradabad spans 7 stations with a 114-point spread (min 96, max 210).
Verdict
🏆 Moradabad has better air quality with an AQI of 101 compared to Kolkata's 117.