According to Huang, increased use of nanomaterials will result in their release into the environment including the air, water, and soil. The main transport route for ENP would be through industrial wastewater and municipal. Huang says that we are not completely aware about the ENP lifecycle and the extent to which the presence of nanomaterials can affect water, organisms and the ecosystem. He adds that their minute size makes it technically difficult to locate and isolate ENP. Huang’s team is working to determine the behaviour and transport of four important engineered nanomaterials: titanium dioxide, used in sunblock and food additives zinc oxide, used in cosmetics and food carbon nanotubes, used in printer ink and medicines, and silver, used in refrigerators and disinfecting products. The project was sponsored by the US Environmental Protection Agency (EPA).
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