The Protocol on Heavy Metals, a protocol to the Convention on Long-Range Transboundary Air Pollution, was adopted in Aarhus, Denmark, in 1998. As of 2004, it had 36 signatories. As of 2016, it had 35 signatories and 33 parties, with no country having become a signatory since 1998. The protocol addresses the reduction of cadmium, lead and mercury emissions in the interests of environmental protection. Amendments to the Protocol were agreed in 2012 to introduce more stringent emission limits but are not yet in force.
Bibliography- Hulme, Karen (January 2004). War Torn Environment: Interpreting The Legal Threshold. Martinus Nijhoff Publishers. ISBN 90-04-13848-X.
References
Hulme 2004, p. 223. - Hulme, Karen (January 2004). War Torn Environment: Interpreting The Legal Threshold. Martinus Nijhoff Publishers. ISBN 90-04-13848-X. https://books.google.com/books?id=hKoXIleS8g4C&pg=PA233 ↩
United Nations Treaty Collection, status of Protocol on Heavy Metals. https://treaties.un.org/Pages/ViewDetails.aspx?src=TREATY&mtdsg_no=XXVII-1-f&chapter=27&clang=_en ↩
"Protocol on Heavy Metals". UNECE. Retrieved 10 August 2014. http://www.unece.org/env/lrtap/hm_h1.html ↩
Decision 2012/5. http://www.unece.org/fileadmin/DAM/env/documents/2012/EB/Decision_2012_5.pdf ↩
UNECE press release, 19 Dec 2012. http://www.unece.org/index.php?id=31845 ↩