Perundurai vs Surat
Side-by-side air quality comparison between Perundurai and Surat.
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 | Surat |
|---|---|---|
| PM2.5(µg/m³) | 9.20 | 25.70 |
| PM10(µg/m³) | 10.30 | 47.30 |
| NO₂(µg/m³) | 10.50 | 22.40 |
| SO₂(µg/m³) | 3.60 | 40.70 |
| O₃(µg/m³) | 35.00 | 35.00 |
| CO(µg/m³) | 172.00 | 266.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Perundurai averaged an AQI of 75 while Surat averaged 83 — a 8-point (11%) gap, with Surat the more polluted and Perundurai the cleaner of the two. On 42 days when both cities reported, Perundurai was cleaner on 34 of them; the average daily gap was 94 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Perundurai logged 0% Severe days and 80.7% Good-or-Satisfactory days; Surat was 0% Severe and 55.9% Good-or-Satisfactory. Longest clean-air streaks: Perundurai 13 days, Surat 55 days.
Year-over-year progress
The worst recorded day for Perundurai reached AQI 153 at SIPCOT Industrial Park (TNPCB) on 2024-11-12; Surat hit AQI 384 at Science Center (SMC) on 2023-08-19.
Station-level disparity
Perundurai spans 1 CPCB stations with a 0-point spread (min 75, max 75); Surat spans 1 stations with a 0-point spread (min 123, max 123).
Verdict
🏆 Perundurai has better air quality with an AQI of 15 compared to Surat's 47.