EMEP Contribution to the Preparatory Work for the Review of the CLRTAP Protocol on POPs. New Substances: Model Assessment of Potential for Long-range Transboundary Atmospheric Transport and Persistence of PentaBDE, Endosulfan, Dicifol, HCBD, PeCB, PCN

EMEP/MSC-E Technical Report 1/2006

N. Vulykh, S. Dutchak, E. Mantseva, V. Shatalov

ABSTRACT

In the recent years MSC-E collaborated with the Task Force on POPs contributing to the preparatory work for the review of the POP Protocol.

To support the work on peer review of dossiers of new substances that were be proposed by Parties for inclusion into annexes to the Protocol, model evaluation of long-range atmospheric transport potential and persistence of a number of new substances, namely PentaBDE, endosulfan, dicofol hexachlorobutadien (HCBD) pentachlorobenzene (PeCBz) and polychlorinated naphthalenes (PCN), was done by MSC-E and delivered to the Task Force on POPs. The results of this work are summarized in the present report.

Here evaluation of long-range transport potential (LRTP) and overall persistence (Pov) for the above-listed substances is presented.

In addition to the evaluation of long-range transport potential and overall persistence, spatial distributions of air concentrations of the considered POPs originated from a conventional point source located in Europe provide complementary information on the main directions of atmospheric transport. This information allows evaluating the regions most affected by these substances from a given conventional emission source.