Patna vs Tālcher
Side-by-side air quality comparison between Patna 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, Patna averaged an AQI of 172 while Tālcher averaged 127 — a 45-point (35%) gap, with Patna the more polluted and Tālcher the cleaner of the two. On 1603 days when both cities reported, Tālcher was cleaner on 1352 of them; the average daily gap was 115 AQI points.
Seasonality & days
Both cities see their worst air in December on average. Patna logged 7.5% Severe days and 19.400000000000002% Good-or-Satisfactory days; Tālcher was 0.2% Severe and 43.1% Good-or-Satisfactory. Longest clean-air streaks: Patna 30 days, Tālcher 44 days.
Year-over-year progress
Patna has improved by 40 AQI points (18.9%) from 2016 to 2024; Tālcher has improved by 63 AQI points (33.2%) over the same window. The worst recorded day for Patna reached AQI 491 at IGSC Planetarium Complex (BSPCB) on 2016-01-01; Tālcher hit AQI 414 at Talcher (OSPCB) on 2018-11-27.
Station-level disparity
Patna spans 6 CPCB stations with a 39-point spread (min 154, max 193); Tālcher spans 1 stations with a 0-point spread (min 132, max 132).