Karnal vs Nagapattinam
Side-by-side air quality comparison between Karnal 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
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Karnal averaged an AQI of 102 while Nagapattinam averaged 60 — a 42-point (70%) gap, with Karnal the more polluted and Nagapattinam the cleaner of the two. On 41 days when both cities reported, Nagapattinam was cleaner on 41 of them; the average daily gap was 97 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; Nagapattinam was 0% Severe and 91.5% Good-or-Satisfactory. Longest clean-air streaks: Karnal 53 days, Nagapattinam 8 days.
Year-over-year progress
The worst recorded day for Karnal reached AQI 456 at Sector-12 (HSPCB) on 2019-11-03; Nagapattinam hit AQI 113 at Velippalayam (TNPCB) on 2024-12-16.
Station-level disparity
Karnal spans 1 CPCB stations with a 0-point spread (min 128, max 128); Nagapattinam spans 1 stations with a 0-point spread (min 60, max 60).