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… before emissions reductions begin to have a demonstrable effect on mercury levels throughout the environment and in … UN Economic Commission for Europe Convention on Long-range Transboundary Air Pollution (LRTAP). Th e report also drew on … UN Economic Commission for Europe (UN ECE) Long-range Transboundary Air Pollution (LRTAP) Convention groups; …

… and consumption of those substances in 1986; with effect from 1 January 1993, the twelve-month control period … Trade in controlled substances and the Basel Convention on Transboundary Movement of Hazardous Wastes and Their Disposal … and halons under the Basel Convention on the Control of Transboundary Movements of Hazardous Wastes and Their …