Environmental issuesAll metals and metal compounds have a certain level of toxicity and may cause adverse effects on living organisms. Nickel in certain forms and under particular circumstances, may generate detrimental environmental (including health and safety) effects, notwithstanding the fact that it is considered to be a vital element for public health by some scientists. Growing concern on environmental matters worldwide stimulated several countries and/or international organisations to regulate metals uses, including nickel, according to their chemical and physical features and properties and possible adverse effects that their various applications may cause. Existing as well as new regulations are aimed at protecting workers and consumers (public health approach) whereas others focus on the protection of the environment (ecological approach). Regulations on occupational exposure limits intend to protect workers in various industries, while legislation on classification, packaging and labelling of products aims to inform the public on possible adverse health effects. To protect the environment, emission levels for various products have been introduced. http://www.insg.org/recycling.aspx
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