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Kannur vs Thanjavur

Side-by-side air quality comparison between Kannur and Thanjavur.

Cleaner right now: Kannur (9-pt gap)Historical head-to-head: Thanjavur cleaner 23/28 days

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

🏆 Cleaner

Kannur

Kerala, India

Good

PM2.5: 5.7 µg/m³

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VS

Thanjavur

Tamil Nadu, India

Good

PM2.5: 12.0 µg/m³

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Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)
PollutantKannurThanjavur
PM2.5(µg/m³)5.7012.00
PM10(µg/m³)11.3013.70
NO₂(µg/m³)3.309.70
SO₂(µg/m³)1.103.90
O₃(µg/m³)51.0038.00
CO(µg/m³)153.00163.00

CPCB Multi-Year History (2016–2024)

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Summary

Overview

In 2024, Kannur averaged an AQI of 65 while Thanjavur averaged 42 — a 23-point (55%) gap, with Kannur the more polluted and Thanjavur the cleaner of the two. On 28 days when both cities reported, Thanjavur was cleaner on 23 of them; the average daily gap was 17 AQI points.

Seasonality & days

Kannur peaks in February, while Thanjavur peaks in November. Kannur logged 0% Severe days and 92% Good-or-Satisfactory days; Thanjavur was 0% Severe and 98.60000000000001% Good-or-Satisfactory. Longest clean-air streaks: Kannur 103 days, Thanjavur 21 days.

Year-over-year progress

The worst recorded day for Kannur reached AQI 258 at Thavakkara Kannur (PCB) on 2021-04-14; Thanjavur hit AQI 140 at Parisutham Nagar (TNPCB) on 2024-11-01.

Station-level disparity

Kannur spans 1 CPCB stations with a 0-point spread (min 66, max 66); Thanjavur spans 1 stations with a 0-point spread (min 42, max 42).

Verdict

🏆 Kannur has better air quality with an AQI of 11 compared to Thanjavur's 20.

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