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Chemistry and Toxicological Impacts of Hazardous Substances in Electronic-Waste: A Review
Abstract
Over the recent past, the global market of electrical and electronic equipment (EEE) has grown exponentially, while the lifespan of these products has become increasingly shorter. Most of the cases Various heavy metals, halogenated compounds and radioactive elements which are present in ewaste,pose serious threat to the environment during their inappropriate recycling processes. During
burning of the e-waste in the open environment, hazardous aromatic compounds and dioxins are generated which are highly toxic than domestic waste burning. If the combustion retardants like PBDEs (Polybrominated Diphenyl Ethers) from e-wastes are released into the environment, they are bio accumulated in living organisms due to their lipophilic nature whereas release of CFCs (Chlorofluoro carbon) from the e-waste dumping site would eventually destroy the ozonosphere.Traditionally hydrophobic organic compounds have been adsorbed to so-called sorbent organic material, which includes the organic fraction of soils and sediments. However, recently it has been shown that many hydrophobic organic compounds have higher affinity to many types of plastics compared to natural sediments. Most of workers are not conscious about hazardous effects e-wastes,even they are not provided with the protective attires, gloves, glasses and the masks. Using bare hands for disassembling and separation of e-wastes can cause skin and respiratory disorders. The purpose of this paper is to highlight a review of the toxicological and chemical impact of substances of electronic Waste in our environment.
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