Hanumāngarh vs Kolkata
Side-by-side air quality comparison between Hanumāngarh 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 | Hanumāngarh | Kolkata |
|---|---|---|
| PM2.5(µg/m³) | 39.90 | 64.70 |
| PM10(µg/m³) | 67.10 | 69.40 |
| NO₂(µg/m³) | 16.50 | 18.10 |
| SO₂(µg/m³) | 10.10 | 13.10 |
| O₃(µg/m³) | 83.00 | 86.00 |
| CO(µg/m³) | 339.00 | 428.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Hanumāngarh averaged an AQI of 178 while Kolkata averaged 101 — a 77-point (76%) gap, with Hanumāngarh the more polluted and Kolkata the cleaner of the two. On 320 days when both cities reported, Kolkata was cleaner on 234 of them; the average daily gap was 69 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Hanumāngarh logged 2.8% Severe days and 20% Good-or-Satisfactory days; Kolkata was 1% Severe and 47.800000000000004% Good-or-Satisfactory. Longest clean-air streaks: Hanumāngarh 22 days, Kolkata 75 days.
Year-over-year progress
Hanumāngarh has improved by 13 AQI points (6.8%) from 2023 to 2024; Kolkata has improved by 76 AQI points (42.9%) over the same window. The worst recorded day for Hanumāngarh reached AQI 447 at Housing Board (RSPCB) on 2023-11-25; Kolkata hit AQI 453 at Rabindra Bharati University (WBPCB) on 2019-01-23.
Station-level disparity
Hanumāngarh spans 1 CPCB stations with a 0-point spread (min 184, max 184); Kolkata spans 7 stations with a 56-point spread (min 95, max 151).
Verdict
🏆 Hanumāngarh has better air quality with an AQI of 68 compared to Kolkata's 117.