Gummidipoondi vs Sagar
Side-by-side air quality comparison between Gummidipoondi and Sagar.
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, Gummidipoondi averaged an AQI of 107 while Sagar averaged 96 — a 11-point (11%) gap, with Gummidipoondi the more polluted and Sagar the cleaner of the two. On 690 days when both cities reported, Sagar was cleaner on 348 of them; the average daily gap was 51 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Gummidipoondi logged 0% Severe days and 59.1% Good-or-Satisfactory days; Sagar was 0% Severe and 69.9% Good-or-Satisfactory. Longest clean-air streaks: Gummidipoondi 49 days, Sagar 57 days.
Year-over-year progress
Gummidipoondi has worsened by 8 AQI points (8.1%) from 2021 to 2024; Sagar has worsened by 24 AQI points (33.3%) over the same window. The worst recorded day for Gummidipoondi reached AQI 326 at Anthoni Pillai Nagar (TNPCB) on 2023-12-22; Sagar hit AQI 347 at Civil Lines (MPPCB) on 2024-12-25.
Station-level disparity
Gummidipoondi spans 1 CPCB stations with a 0-point spread (min 99, max 99); Sagar spans 2 stations with a 45-point spread (min 73, max 118).