Chennai vs Tirupati
Side-by-side air quality comparison between Chennai and Tirupati.
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, Chennai averaged an AQI of 68 while Tirupati averaged 75 — a 7-point (10%) gap, with Tirupati the more polluted and Chennai the cleaner of the two. On 261 days when both cities reported, Tirupati was cleaner on 194 of them; the average daily gap was 52 AQI points.
Seasonality & days
Chennai peaks in December, while Tirupati peaks in April. Chennai logged 0% Severe days and 57.5% Good-or-Satisfactory days; Tirupati was 0% Severe and 84% Good-or-Satisfactory. Longest clean-air streaks: Chennai 53 days, Tirupati 36 days.
Year-over-year progress
Chennai has improved by 25 AQI points (26.9%) from 2017 to 2024; Tirupati has improved by 20 AQI points (21.1%) over the same window. The worst recorded day for Chennai reached AQI 391 at Kodungaiyur (TNPCB) on 2021-05-14; Tirupati hit AQI 263 at Vaikuntapuram (APPCB) on 2022-11-16.
Station-level disparity
Chennai spans 9 CPCB stations with a 27-point spread (min 63, max 90); Tirupati spans 1 stations with a 0-point spread (min 75, max 75).