Ariyalur vs Thiruvananthapuram
Side-by-side air quality comparison between Ariyalur 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, Ariyalur averaged an AQI of 46 while Thiruvananthapuram averaged 56 — a 10-point (22%) gap, with Thiruvananthapuram the more polluted and Ariyalur the cleaner of the two. On 313 days when both cities reported, Ariyalur was cleaner on 269 of them; the average daily gap was 31 AQI points.
Seasonality & days
Ariyalur peaks in March, while Thiruvananthapuram peaks in January. Ariyalur logged 0% Severe days and 93.8% Good-or-Satisfactory days; Thiruvananthapuram was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Ariyalur 57 days, Thiruvananthapuram 172 days.
Year-over-year progress
Ariyalur has improved by 35 AQI points (43.2%) from 2022 to 2024; Thiruvananthapuram has improved by 11 AQI points (16.4%) over the same window. The worst recorded day for Ariyalur reached AQI 221 at Keelapalur (TNPCB) on 2024-04-07; Thiruvananthapuram hit AQI 387 at Plammoodu Thiruvananthapuram (PCB) on 2021-08-30.
Station-level disparity
Ariyalur spans 1 CPCB stations with a 0-point spread (min 51, max 51); Thiruvananthapuram spans 2 stations with a 7-point spread (min 57, max 64).