Samastipur vs Tiruchirappalli
Side-by-side air quality comparison between Samastipur and Tiruchirappalli.
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, Samastipur averaged an AQI of 134 while Tiruchirappalli averaged 50 — a 84-point (168%) gap, with Samastipur the more polluted and Tiruchirappalli the cleaner of the two. On 74 days when both cities reported, Tiruchirappalli was cleaner on 70 of them; the average daily gap was 103 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Samastipur logged 1.4% Severe days and 23.400000000000002% Good-or-Satisfactory days; Tiruchirappalli was 0% Severe and 96.5% Good-or-Satisfactory. Longest clean-air streaks: Samastipur 9 days, Tiruchirappalli 46 days.
Year-over-year progress
Samastipur has improved by 84 AQI points (38.5%) from 2022 to 2024; Tiruchirappalli has improved by 23 AQI points (31.5%) over the same window. The worst recorded day for Samastipur reached AQI 459 at DM Office Kasipur (BSPCB) on 2023-01-01; Tiruchirappalli hit AQI 114 at St Joseph College (TNPCB) on 2024-01-14.
Station-level disparity
Samastipur spans 1 CPCB stations with a 0-point spread (min 177, max 177); Tiruchirappalli spans 1 stations with a 0-point spread (min 52, max 52).