Karur vs Perundurai
Side-by-side air quality comparison between Karur and Perundurai.
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, Karur averaged an AQI of 71 while Perundurai averaged 75 — a 4-point (6%) gap, with Perundurai the more polluted and Karur the cleaner of the two. On 46 days when both cities reported, Karur was cleaner on 24 of them; the average daily gap was 21 AQI points.
Seasonality & days
Karur peaks in December, while Perundurai peaks in November. Karur logged 0% Severe days and 80.3% Good-or-Satisfactory days; Perundurai was 0% Severe and 80.7% Good-or-Satisfactory. Longest clean-air streaks: Karur 34 days, Perundurai 13 days.
Year-over-year progress
The worst recorded day for Karur reached AQI 149 at Kamadenu Nagar (TNPCB) on 2024-11-26; Perundurai hit AQI 153 at SIPCOT Industrial Park (TNPCB) on 2024-11-12.
Station-level disparity
Karur spans 1 CPCB stations with a 0-point spread (min 71, max 71); Perundurai spans 1 stations with a 0-point spread (min 75, max 75).