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… the contamination of watercourses with ‘heavy’ metals, chemical waste or pesticides and fertilizers. It is also … solid (ice) and gaseous (clouds, fog or mist). From the chemical point of view, water is, in its purest form, a … this principle, the territorial sovereignty of a State is restricted, in the sense that no activities may occur that …

… related to specific issues such as biological diversity, chemical pollution, climate change or wetlands protections. … showing that long-range environmental transport of the chemical, with the potential for transfer to a receiving … properties and/or model results that demonstrate that the chemical has a potential for long-range environmental …

… from an international watercourse, but toxic waste and chemical pollution from the plant are discharged onto the … ‘ensure stream flows adequate to protect the biological, chemical, and physical integrity of international … the application of ecological classification methods and chemical indices for the medium- and long-term review of …

… substances (the discharge of which is prohibited or restricted), general stan- dards of effluents, pollution … for the Protection of the Rhine against Pollution from Chemical Substances.37 There are also numerous examples of … includes specific objectives to restore and maintain the chemical, physical and biological balance of the Great Lakes …