Cuddalore vs Kolkata
Side-by-side air quality comparison between Cuddalore 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, Cuddalore averaged an AQI of 52 while Kolkata averaged 101 — a 49-point (94%) gap, with Kolkata the more polluted and Cuddalore the cleaner of the two. On 319 days when both cities reported, Cuddalore was cleaner on 296 of them; the average daily gap was 72 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Cuddalore logged 0% Severe days and 90.6% Good-or-Satisfactory days; Kolkata was 1% Severe and 47.800000000000004% Good-or-Satisfactory. Longest clean-air streaks: Cuddalore 34 days, Kolkata 75 days.
Year-over-year progress
The worst recorded day for Cuddalore reached AQI 329 at Kudikadu (TNPCB) on 2024-04-05; Kolkata hit AQI 453 at Rabindra Bharati University (WBPCB) on 2019-01-23.
Station-level disparity
Cuddalore spans 2 CPCB stations with a 11-point spread (min 46, max 57); Kolkata spans 7 stations with a 56-point spread (min 95, max 151).