Kalyān vs Thiruvananthapuram
Side-by-side air quality comparison between Kalyān and Thiruvananthapuram.
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, Kalyān averaged an AQI of 95 while Thiruvananthapuram averaged 56 — a 39-point (70%) gap, with Kalyān the more polluted and Thiruvananthapuram the cleaner of the two. On 1400 days when both cities reported, Thiruvananthapuram was cleaner on 1134 of them; the average daily gap was 64 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Kalyān logged 0.1% Severe days and 46.4% Good-or-Satisfactory days; Thiruvananthapuram was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Kalyān 78 days, Thiruvananthapuram 172 days.
Year-over-year progress
Kalyān has improved by 4 AQI points (4%) from 2019 to 2024; Thiruvananthapuram has improved by 11 AQI points (16.4%) over the same window. The worst recorded day for Kalyān reached AQI 414 at Khadakpada (MPCB) on 2022-01-24; Thiruvananthapuram hit AQI 387 at Plammoodu Thiruvananthapuram (PCB) on 2021-08-30.
Station-level disparity
Kalyān spans 2 CPCB stations with a 18-point spread (min 98, max 116); Thiruvananthapuram spans 2 stations with a 7-point spread (min 57, max 64).