Nagapattinam vs Perundurai
Side-by-side air quality comparison between Nagapattinam 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, Nagapattinam averaged an AQI of 60 while Perundurai averaged 75 — a 15-point (25%) gap, with Perundurai the more polluted and Nagapattinam the cleaner of the two. On 26 days when both cities reported, Nagapattinam was cleaner on 20 of them; the average daily gap was 25 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Nagapattinam logged 0% Severe days and 91.5% Good-or-Satisfactory days; Perundurai was 0% Severe and 80.7% Good-or-Satisfactory. Longest clean-air streaks: Nagapattinam 8 days, Perundurai 13 days.
Year-over-year progress
The worst recorded day for Nagapattinam reached AQI 113 at Velippalayam (TNPCB) on 2024-12-16; Perundurai hit AQI 153 at SIPCOT Industrial Park (TNPCB) on 2024-11-12.
Station-level disparity
Nagapattinam spans 1 CPCB stations with a 0-point spread (min 60, max 60); Perundurai spans 1 stations with a 0-point spread (min 75, max 75).