Kārwār vs Nagapattinam
Side-by-side air quality comparison between Kārwār and Nagapattinam.
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 | Kārwār | Nagapattinam |
|---|---|---|
| PM2.5(µg/m³) | 6.20 | 12.50 |
| PM10(µg/m³) | 15.80 | 16.20 |
| NO₂(µg/m³) | 0.70 | 9.80 |
| SO₂(µg/m³) | 0.40 | 4.10 |
| O₃(µg/m³) | 56.00 | 38.00 |
| CO(µg/m³) | 98.00 | 211.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kārwār averaged an AQI of 55 while Nagapattinam averaged 60 — a 5-point (9%) gap, with Nagapattinam the more polluted and Kārwār the cleaner of the two. On 29 days when both cities reported, Kārwār was cleaner on 17 of them; the average daily gap was 22 AQI points.
Seasonality & days
Kārwār peaks in January, while Nagapattinam peaks in November. Kārwār logged 0% Severe days and 92.7% Good-or-Satisfactory days; Nagapattinam was 0% Severe and 91.5% Good-or-Satisfactory. Longest clean-air streaks: Kārwār 34 days, Nagapattinam 8 days.
Year-over-year progress
The worst recorded day for Kārwār reached AQI 222 at KHB Colony (KSPCB) on 2023-12-21; Nagapattinam hit AQI 113 at Velippalayam (TNPCB) on 2024-12-16.
Station-level disparity
Kārwār spans 1 CPCB stations with a 0-point spread (min 58, max 58); Nagapattinam spans 1 stations with a 0-point spread (min 60, max 60).
Verdict
🏆 Kārwār has better air quality with an AQI of 16 compared to Nagapattinam's 21.