Perundurai vs Tirunelveli
Side-by-side air quality comparison between Perundurai and Tirunelveli.
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
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Perundurai | Tirunelveli |
|---|---|---|
| PM2.5(µg/m³) | 6.80 | 4.30 |
| PM10(µg/m³) | 8.00 | 5.30 |
| NO₂(µg/m³) | 11.30 | 6.20 |
| SO₂(µg/m³) | 3.20 | 1.80 |
| O₃(µg/m³) | 32.00 | 26.00 |
| CO(µg/m³) | 159.00 | 139.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Perundurai averaged an AQI of 75 while Tirunelveli averaged 30 — a 45-point (150%) gap, with Perundurai the more polluted and Tirunelveli the cleaner of the two. On 43 days when both cities reported, Tirunelveli was cleaner on 43 of them; the average daily gap was 48 AQI points.
Seasonality & days
Perundurai peaks in November, while Tirunelveli peaks in October. Perundurai logged 0% Severe days and 80.7% Good-or-Satisfactory days; Tirunelveli was 0% Severe and 100% Good-or-Satisfactory. Longest clean-air streaks: Perundurai 13 days, Tirunelveli 31 days.
Year-over-year progress
The worst recorded day for Perundurai reached AQI 153 at SIPCOT Industrial Park (TNPCB) on 2024-11-12; Tirunelveli hit AQI 42 at Municipal Corporation Office (TNPCB) on 2024-10-30.
Station-level disparity
Perundurai spans 1 CPCB stations with a 0-point spread (min 75, max 75); Tirunelveli spans 1 stations with a 0-point spread (min 30, max 30).
Verdict
🏆 Tirunelveli has better air quality with an AQI of 7 compared to Perundurai's 11.