Bettiah vs Thiruvananthapuram
Side-by-side air quality comparison between Bettiah 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, Bettiah averaged an AQI of 127 while Thiruvananthapuram averaged 56 — a 71-point (127%) gap, with Bettiah the more polluted and Thiruvananthapuram the cleaner of the two. On 523 days when both cities reported, Thiruvananthapuram was cleaner on 437 of them; the average daily gap was 102 AQI points.
Seasonality & days
Bettiah peaks in November, while Thiruvananthapuram peaks in January. Bettiah logged 3.2% Severe days and 32.3% Good-or-Satisfactory days; Thiruvananthapuram was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Bettiah 20 days, Thiruvananthapuram 172 days.
Year-over-year progress
Bettiah has improved by 73 AQI points (36.5%) from 2021 to 2024; Thiruvananthapuram has improved by 11 AQI points (16.4%) over the same window. The worst recorded day for Bettiah reached AQI 470 at Kamalnath Nagar (BSPCB) on 2023-01-01; Thiruvananthapuram hit AQI 387 at Plammoodu Thiruvananthapuram (PCB) on 2021-08-30.
Station-level disparity
Bettiah spans 1 CPCB stations with a 0-point spread (min 173, max 173); Thiruvananthapuram spans 2 stations with a 7-point spread (min 57, max 64).