potential for long-range environmental transport (LRET), and adverse effects. POPRC-8 proposed hexabromocyclododecane for listing in Annex A, with specific exemptions for production and use in expanded polystyrene and extruded polystyrene in buildings. This proposal was agreed at the sixth Conference of Parties on 28 April-10 May 2013. POPRC-9 proposed di-, tri-, tetra-, penta-, hexa-, hepta- and octa-chlorinated napthalenes, and hexachlorobutadiene for listing in Annexes A and C. It also set up further work on pentachlorophenol, its salts and esters, and decabromodiphenyl ether, perfluorooctanesulfonic acid, its salts and perfluorooctane sulfonyl chloride. POPRC-15 proposed PFHxS for listing in Annex A without specific exemptions. Currently, methoxychlor, dechlorane plus, UV-328, chlorpyrifos, long-chain perfluorocarboxylic acids and medium-chain chlorinated paraffins are under review. Controversies Although some critics have alleged that the treaty is responsible for the continuing death toll from malaria, in reality the treaty specifically permits the public health use of DDT for the control of mosquitoes (the malaria vector). There are also ways to prevent high amounts of DDT consumed by using other malaria controls such as window screens. As long as there are specific measures taken, such as use of DDT indoors, then the limited amount of DDT can be used in a regulated fashion. From a developing country perspective, a lack of data and information about the sources, releases, and environmental levels of POPs hampers negotiations on specific compounds, and indicates a strong need for research. Another controversy would be certain POPs (which are continually active, specifically in the Arctic Biota) that were mentioned in the Stockholm Convention, but were not part of the Dirty Dozen such as perfluorooctane sulfonate (PFOS). PFOS have many general uses such as stain repellents but have many properties which can make it a dangerous due to the fact that PFOS can be highly resistant to environmental breakdown. PFOS can be toxic in terms of increased offspring death, decrease in body weight, and the disruption of neurological systems. What makes this compound controversial is the economic and political impact it can have among various countries and businesses. Related conventions and other ongoing negotiations regarding pollution Rotterdam Convention on the Prior Informed Consent Procedure for Certain Hazardous Chemicals and Pesticides in International Trade Convention on Long-Range Transboundary Air Pollution (CLRTAP) Basel Convention on the Control of Transboundary Movements of Hazardous Wastes and their Disposal Minamata Convention on Mercury Ongoing negotiations Intergovernmental Forum on Chemical Safety (IFCS) Strategic Approach