Perundurai vs Thanjavur
Side-by-side air quality comparison between Perundurai and Thanjavur.
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 | Thanjavur |
|---|---|---|
| PM2.5(µg/m³) | 9.20 | 12.00 |
| PM10(µg/m³) | 10.30 | 13.70 |
| NO₂(µg/m³) | 10.50 | 9.70 |
| SO₂(µg/m³) | 3.60 | 3.90 |
| O₃(µg/m³) | 35.00 | 38.00 |
| CO(µg/m³) | 172.00 | 163.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Perundurai averaged an AQI of 75 while Thanjavur averaged 42 — a 33-point (79%) gap, with Perundurai the more polluted and Thanjavur the cleaner of the two. On 46 days when both cities reported, Thanjavur was cleaner on 38 of them; the average daily gap was 38 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; Thanjavur was 0% Severe and 98.60000000000001% Good-or-Satisfactory. Longest clean-air streaks: Perundurai 13 days, Thanjavur 21 days.
Year-over-year progress
The worst recorded day for Perundurai reached AQI 153 at SIPCOT Industrial Park (TNPCB) on 2024-11-12; Thanjavur hit AQI 140 at Parisutham Nagar (TNPCB) on 2024-11-01.
Station-level disparity
Perundurai spans 1 CPCB stations with a 0-point spread (min 75, max 75); Thanjavur spans 1 stations with a 0-point spread (min 42, max 42).
Verdict
🏆 Perundurai has better air quality with an AQI of 15 compared to Thanjavur's 20.