Tālcher vs Thiruvananthapuram
Side-by-side air quality comparison between Tālcher 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 2023, Tālcher averaged an AQI of 127 while Thiruvananthapuram averaged 56 — a 71-point (127%) gap, with Tālcher the more polluted and Thiruvananthapuram the cleaner of the two. On 1339 days when both cities reported, Thiruvananthapuram was cleaner on 1207 of them; the average daily gap was 72 AQI points.
Seasonality & days
Tālcher peaks in December, while Thiruvananthapuram peaks in January. Tālcher logged 0.2% Severe days and 43.1% Good-or-Satisfactory days; Thiruvananthapuram was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Tālcher 44 days, Thiruvananthapuram 172 days.
Year-over-year progress
Tālcher has improved by 63 AQI points (33.2%) from 2018 to 2023; Thiruvananthapuram has improved by 11 AQI points (16.4%) over the same window. The worst recorded day for Tālcher reached AQI 414 at Talcher (OSPCB) on 2018-11-27; Thiruvananthapuram hit AQI 387 at Plammoodu Thiruvananthapuram (PCB) on 2021-08-30.
Station-level disparity
Tālcher spans 1 CPCB stations with a 0-point spread (min 132, max 132); Thiruvananthapuram spans 2 stations with a 7-point spread (min 57, max 64).