Shillong vs Tālcher
Side-by-side air quality comparison between Shillong and Tālcher.
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, Shillong averaged an AQI of 75 while Tālcher averaged 127 — a 52-point (69%) gap, with Tālcher the more polluted and Shillong the cleaner of the two. On 660 days when both cities reported, Shillong was cleaner on 632 of them; the average daily gap was 72 AQI points.
Seasonality & days
Shillong peaks in February, while Tālcher peaks in December. Shillong logged 0% Severe days and 92% Good-or-Satisfactory days; Tālcher was 0.2% Severe and 43.1% Good-or-Satisfactory. Longest clean-air streaks: Shillong 113 days, Tālcher 44 days.
Year-over-year progress
Shillong has worsened by 41 AQI points (120.6%) from 2019 to 2024; Tālcher has improved by 63 AQI points (33.2%) over the same window. The worst recorded day for Shillong reached AQI 212 at Lumpyngngad Shillong (PCB) on 2024-02-19; Tālcher hit AQI 414 at Talcher (OSPCB) on 2018-11-27.
Station-level disparity
Shillong spans 2 CPCB stations with a 2-point spread (min 42, max 44); Tālcher spans 1 stations with a 0-point spread (min 132, max 132).