Dindigul vs Kolkata
Side-by-side air quality comparison between Dindigul 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
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Dindigul averaged an AQI of 61 while Kolkata averaged 101 — a 40-point (66%) gap, with Kolkata the more polluted and Dindigul the cleaner of the two. On 173 days when both cities reported, Dindigul was cleaner on 157 of them; the average daily gap was 83 AQI points.
Seasonality & days
Dindigul peaks in February, while Kolkata peaks in January. Dindigul logged 0% Severe days and 67.3% Good-or-Satisfactory days; Kolkata was 1% Severe and 47.800000000000004% Good-or-Satisfactory. Longest clean-air streaks: Dindigul 22 days, Kolkata 75 days.
Year-over-year progress
Dindigul has improved by 29 AQI points (32.2%) from 2022 to 2024; Kolkata has improved by 76 AQI points (42.9%) over the same window. The worst recorded day for Dindigul reached AQI 352 at Mendonsa Colony (TNPCB) on 2023-03-12; Kolkata hit AQI 453 at Rabindra Bharati University (WBPCB) on 2019-01-23.
Station-level disparity
Dindigul spans 1 CPCB stations with a 0-point spread (min 102, max 102); Kolkata spans 7 stations with a 56-point spread (min 95, max 151).