Karnal vs Perundurai
Side-by-side air quality comparison between Karnal 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 | Karnal | Perundurai |
|---|---|---|
| PM2.5(µg/m³) | 110.80 | 6.80 |
| PM10(µg/m³) | 258.90 | 8.00 |
| NO₂(µg/m³) | 55.20 | 11.30 |
| SO₂(µg/m³) | 12.50 | 3.20 |
| O₃(µg/m³) | 10.00 | 32.00 |
| CO(µg/m³) | 1037.00 | 159.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Karnal averaged an AQI of 102 while Perundurai averaged 75 — a 27-point (36%) gap, with Karnal the more polluted and Perundurai the cleaner of the two. On 45 days when both cities reported, Perundurai was cleaner on 39 of them; the average daily gap was 93 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Karnal logged 0.1% Severe days and 46.2% Good-or-Satisfactory days; Perundurai was 0% Severe and 80.7% Good-or-Satisfactory. Longest clean-air streaks: Karnal 53 days, Perundurai 13 days.
Year-over-year progress
The worst recorded day for Karnal reached AQI 456 at Sector-12 (HSPCB) on 2019-11-03; Perundurai hit AQI 153 at SIPCOT Industrial Park (TNPCB) on 2024-11-12.
Station-level disparity
Karnal spans 1 CPCB stations with a 0-point spread (min 128, max 128); 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 Karnal's 270. That's a significant difference of 259 points.