Būndi vs Kolkata
Side-by-side air quality comparison between Būndi 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 | Būndi | Kolkata |
|---|---|---|
| PM2.5(µg/m³) | 19.60 | 64.70 |
| PM10(µg/m³) | 30.30 | 69.40 |
| NO₂(µg/m³) | 5.70 | 18.10 |
| SO₂(µg/m³) | 4.00 | 13.10 |
| O₃(µg/m³) | 53.00 | 86.00 |
| CO(µg/m³) | 180.00 | 428.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Būndi averaged an AQI of 126 while Kolkata averaged 101 — a 25-point (25%) gap, with Būndi the more polluted and Kolkata the cleaner of the two. On 334 days when both cities reported, Kolkata was cleaner on 176 of them; the average daily gap was 50 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Būndi logged 0% Severe days and 31% Good-or-Satisfactory days; Kolkata was 1% Severe and 47.800000000000004% Good-or-Satisfactory. Longest clean-air streaks: Būndi 23 days, Kolkata 75 days.
Year-over-year progress
Būndi has improved by 18 AQI points (12.5%) from 2023 to 2024; Kolkata has improved by 76 AQI points (42.9%) over the same window. The worst recorded day for Būndi reached AQI 353 at New Colony (RSPCB) on 2023-12-25; Kolkata hit AQI 453 at Rabindra Bharati University (WBPCB) on 2019-01-23.
Station-level disparity
Būndi spans 1 CPCB stations with a 0-point spread (min 133, max 133); Kolkata spans 7 stations with a 56-point spread (min 95, max 151).
Verdict
🏆 Būndi has better air quality with an AQI of 33 compared to Kolkata's 117. That's a significant difference of 84 points.