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Our activation procedure including contact details and forms for activation, in addition to equipment stockpile and aviation status reports can be found here.

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Please note that:

Response services are guaranteed ONLY for Members. Non-members are not guaranteed a response and will be required to sign a Non-member contract. Services and rates differ. Duty managers can be contacted for exercises.

Oil Spill Response Limited Oil Spill Response Limited

Welcome to OSRL

  • Field Guide
  • Dispersants

Dispersant Application Monitoring: Tier I Visual Observation Field Guide

A guide to the indicators and factors influencing the effectiveness of chemical dispersant use at sea

Dispersant Application Monitoring: Tier I Visual ObservationField Guide

This short field guide is intended to be used by anyone using dispersants to combat oil spills at sea to provide a qualitative assessment of the efficacy of dispersant operations using visual observations. Included are the safety considerations for dispersant use and a description of the variables involved. Additionally guidance is given on the visual observations that indicate whether dispersant is effective at dispersing the surface oil slick.

Monitoring is important to determine:

  • That the dispersant was applied at the appropriate dosage in the correct locations
  • Whether the dispersant is effective.

Decision makers need to be briefed on the observed efficacy of the operation, so that they can make an informed decision on response strategy. 

Download the Resource

Want to take your knowledge of Dispersant Monitoring further?

Understand the fundamentals needed to implement and apply the usage of dispersant strategically and effectively with our Dispersant Awareness and Monitoring training course.

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