Nārnaul vs Perundurai
Side-by-side air quality comparison between Nārnaul 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 | Nārnaul | Perundurai |
|---|---|---|
| PM2.5(µg/m³) | 45.40 | 9.20 |
| PM10(µg/m³) | 126.20 | 10.30 |
| NO₂(µg/m³) | 12.40 | 10.50 |
| SO₂(µg/m³) | 7.70 | 3.60 |
| O₃(µg/m³) | 86.00 | 35.00 |
| CO(µg/m³) | 365.00 | 172.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Nārnaul averaged an AQI of 94 while Perundurai averaged 75 — a 19-point (25%) gap, with Nārnaul the more polluted and Perundurai the cleaner of the two. On 34 days when both cities reported, Perundurai was cleaner on 33 of them; the average daily gap was 108 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Nārnaul logged 0.1% Severe days and 40.8% Good-or-Satisfactory days; Perundurai was 0% Severe and 80.7% Good-or-Satisfactory. Longest clean-air streaks: Nārnaul 63 days, Perundurai 13 days.
Year-over-year progress
The worst recorded day for Nārnaul reached AQI 435 at Shastri Nagar (HSPCB) on 2023-11-16; Perundurai hit AQI 153 at SIPCOT Industrial Park (TNPCB) on 2024-11-12.
Station-level disparity
Nārnaul spans 1 CPCB stations with a 0-point spread (min 130, max 130); Perundurai spans 1 stations with a 0-point spread (min 75, max 75).
Verdict
🏆 Perundurai has better air quality with an AQI of 15 compared to Nārnaul's 118. That's a significant difference of 103 points.