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… Convention on Persistent Organic Pollutants, art. 3 (1) B Heavy metals “Promote reduction of the risks posed by heavy metals that are harmful to human health and the … Lead “Taking appropriate action to manage the use of heavy metals, particularly lead, safely and effectively and, …

… contribution to worldwide food production but without heavy machinery and usually with a much lower environmental … of course many other environmental impacts. 52 UNEP. 2013. Metal recycling: opportunities, limits, infrastructure. A Report of the Working Group on the Global Metal Flows to the International Resource Panel. …

… persistent organic pollutants, radioactive substances, heavy metals, oils (hydrocarbons), nutrients, sediment …