Scientifically robust data collection and interpretation is an essential element of effective post spill monitoring and impact assessment. The approach to assessing post spill impacts (and the scope for subsequent remediation and/or restorative action) may differ according to the relevant ‘national regime’ or International Convention applicable. As such, the approach and options available for post spill monitoring and assessment is often based on location and/or source of the spill. However, regardless of the approach adopted, a number of common questions may need to be answered at each stage of the assessment process.

Post spill monitoring typically incorporates a number of stages, with each stage providing information used to inform effective decision making across the full range of response activities. These monitoring stages comprise: 1) identification of the type and source of the spill, 2) determining the trajectory and footprint of the spill, 3) determining the distribution and extent (in space and time) of sensitive resources in the vicinity of the spill, 4) determining the ‘overlap’ between the footprint of the spill and location of sensitive resources, 5) assessment of the effectiveness of actions to mitigate impacts of the spill (e.g., clean up) and 6) evaluating the requirement and potential approaches for restoration.

This paper explores monitoring data and evidence requirements at each stage of the impact assessment process and, drawing on ‘lessons learned’ from wider marine environmental quality monitoring experience, will offer potential solutions to some of challenges encountered along the way.

This content is only available as a PDF.
You do not currently have access to this content.