SmogRank / Coffs Harbour / Port Macquarie

Coffs Harbour vs Port Macquarie: PM2.5 compared

Coffs Harbour and Port Macquarie were both measured on only 9 days over the last year, too few to compare them (it takes 30).

Right now

Coffs Harbour#498on the 24-hour board of 738, at 21 US AQI (3.7 µg/m³)

Port Macquarie#570on the 24-hour board of 738, at 17 US AQI (3.1 µg/m³)

Compare either city with another

Coffs Harbour

Side by side with Tuggeranong (Australia's worst on 30 days), Gujranwala (the world's worst on 30 days).

Port Macquarie

Side by side with Tuggeranong (Australia's worst on 30 days), Gujranwala (the world's worst on 30 days).

The same rules as every SmogRank figure: reference monitors first, and a day counts with 18 measured hours. How we measure.

Updated 2026-10-08 20:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some readings: Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); Love My Air (City and County of Denver), no reuse terms published (why we use them).