Hāveri vs Perundurai
Side-by-side air quality comparison between Hāveri 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
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Hāveri | Perundurai |
|---|---|---|
| PM2.5(µg/m³) | 7.00 | 6.80 |
| PM10(µg/m³) | 9.20 | 8.00 |
| NO₂(µg/m³) | 8.60 | 11.30 |
| SO₂(µg/m³) | 1.00 | 3.20 |
| O₃(µg/m³) | 30.00 | 32.00 |
| CO(µg/m³) | 120.00 | 159.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Hāveri averaged an AQI of 66 while Perundurai averaged 75 — a 9-point (14%) gap, with Perundurai the more polluted and Hāveri the cleaner of the two. On 42 days when both cities reported, Hāveri was cleaner on 22 of them; the average daily gap was 35 AQI points.
Seasonality & days
Hāveri peaks in January, while Perundurai peaks in November. Hāveri logged 0% Severe days and 86.69999999999999% Good-or-Satisfactory days; Perundurai was 0% Severe and 80.7% Good-or-Satisfactory. Longest clean-air streaks: Hāveri 76 days, Perundurai 13 days.
Year-over-year progress
The worst recorded day for Hāveri reached AQI 262 at Ashwini Nagar (KSPCB) on 2023-11-17; Perundurai hit AQI 153 at SIPCOT Industrial Park (TNPCB) on 2024-11-12.
Station-level disparity
Hāveri spans 1 CPCB stations with a 0-point spread (min 68, max 68); Perundurai spans 1 stations with a 0-point spread (min 75, max 75).
Verdict
🏆 Perundurai has better air quality with an AQI of 11 compared to Hāveri's 12.