What is the air quality trend in City of Port Phillip?

Over the past 8 days, City of Port Phillip had an average AQI of 15 based on station measurements. The worst day was 2026-09-23 with AQI 44.

How is City of Port Phillip air quality measured?

Air quality in City of Port Phillip is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for City of Port Phillip, Australia

Name: City of Port Phillip Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near City of Port Phillip, Australia.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

108h

PM2.5 Station

108h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-23	44	26–67	11.5 µg/m³	10h	1
2026-09-22	13	3–49	2.7 µg/m³	8h	1
2026-09-21	8	2–22	2.0 µg/m³	5h	1
2026-09-20	6	1–10	1.3 µg/m³	2h	1
2026-09-19	10	4–38	2.3 µg/m³	23h	1
2026-09-18	9	4–33	2.3 µg/m³	23h	1
2026-09-17	17	3–152	5.0 µg/m³	24h	2
2026-09-16	13	4–38	3.2 µg/m³	13h	1

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