Chennai vs Ranipet
Side-by-side air quality comparison between Chennai and Ranipet.
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 Ranipet averaged 75 — a 7-point (10%) gap, with Ranipet the more polluted and Chennai the cleaner of the two. On 62 days when both cities reported, Ranipet was cleaner on 52 of them; the average daily gap was 41 AQI points.
Seasonality & days
Chennai peaks in December, while Ranipet peaks in November. Chennai logged 0% Severe days and 57.5% Good-or-Satisfactory days; Ranipet was 0% Severe and 67.80000000000001% Good-or-Satisfactory. Longest clean-air streaks: Chennai 53 days, Ranipet 10 days.
Year-over-year progress
The worst recorded day for Chennai reached AQI 391 at Kodungaiyur (TNPCB) on 2021-05-14; Ranipet hit AQI 224 at VOC Nagar SIPCOT (TNPCB) on 2024-12-17.
Station-level disparity
Chennai spans 9 CPCB stations with a 27-point spread (min 63, max 90); Ranipet spans 1 stations with a 0-point spread (min 75, max 75).