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Nagapattinam vs Salem

Side-by-side air quality comparison between Nagapattinam and Salem.

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

Nagapattinam

Tamil Nadu, India

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VS

Salem

Tamil Nadu, India

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CPCB Multi-Year History (2016–2024)

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Summary

Overview

In 2024, Nagapattinam averaged an AQI of 60 while Salem averaged 68 — a 8-point (13%) gap, with Salem the more polluted and Nagapattinam the cleaner of the two. On 25 days when both cities reported, Nagapattinam was cleaner on 17 of them; the average daily gap was 23 AQI points.

Seasonality & days

Nagapattinam peaks in November, while Salem peaks in April. Nagapattinam logged 0% Severe days and 91.5% Good-or-Satisfactory days; Salem was 0% Severe and 87.1% Good-or-Satisfactory. Longest clean-air streaks: Nagapattinam 8 days, Salem 17 days.

Year-over-year progress

The worst recorded day for Nagapattinam reached AQI 113 at Velippalayam (TNPCB) on 2024-12-16; Salem hit AQI 214 at Sona College of Technology (TNPCB) on 2024-01-15.

Station-level disparity

Nagapattinam spans 1 CPCB stations with a 0-point spread (min 60, max 60); Salem spans 1 stations with a 0-point spread (min 73, max 73).

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