The current status of chlorophyll a in Port Phillip Bay is Very Good and the trend is Improving. Chlorophyll a has seen some of the biggest improvements since 2022-2023 reporting, particularly in Hobsons Bay and Patterson River which was previously Fair and now reports a Very Good status for this Direct Effect. This status is informed by the available time-series data. The confidence score for this data is Medium.
Data Source: EPA
Data Source: EPA
Data Source: EPA
Page last updated: 30/10/25