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Ariyalur vs Nagapattinam

Side-by-side air quality comparison between Ariyalur 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

Ariyalur

Tamil Nadu, India

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Nagapattinam

Tamil Nadu, India

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CPCB Multi-Year History (2016–2024)

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Summary

Overview

In 2024, Ariyalur averaged an AQI of 46 while Nagapattinam averaged 60 — a 14-point (30%) gap, with Nagapattinam the more polluted and Ariyalur the cleaner of the two. On 35 days when both cities reported, Ariyalur was cleaner on 22 of them; the average daily gap was 13 AQI points.

Seasonality & days

Ariyalur peaks in March, while Nagapattinam peaks in November. Ariyalur logged 0% Severe days and 93.8% Good-or-Satisfactory days; Nagapattinam was 0% Severe and 91.5% Good-or-Satisfactory. Longest clean-air streaks: Ariyalur 57 days, Nagapattinam 8 days.

Year-over-year progress

The worst recorded day for Ariyalur reached AQI 221 at Keelapalur (TNPCB) on 2024-04-07; Nagapattinam hit AQI 113 at Velippalayam (TNPCB) on 2024-12-16.

Station-level disparity

Ariyalur spans 1 CPCB stations with a 0-point spread (min 51, max 51); Nagapattinam spans 1 stations with a 0-point spread (min 60, max 60).

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