This document is providing a review of the chemical spills and lessons learnt from such spills. it is intended to serve as a technical supplement to the white paper "Are HNS Spills More Dangerous than Oil Spills?" presented in the course of the INTERSPILL 2009 Conference. The content has been prepared on the basis of the information obtained from the Helcom reports, Bonn Agreement and other sources.
The document was written with a view to giving some additional information related to the international technical experience on the HNS spill response; it also covers all relevant techniques and tools. The opening chapter concentrates on the information on HNS incidents available today with the table of the forty-seven recorded incidents together with their causes.
In the second chapter, a review of all those incidents is provided. supplemented with analysis of the associated risks and response measures that were taken - this chapter also gives a brief summary of the risks to human life and health as well as the environment. Third chapter is focusing on the twenty-four case studies identified by the pollutant type. The closing chapter of the document is dealing with the general lessons that have been learnt by the industry related to the dangers, risks, consequences of the spills and responses.