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Heilongjiang Area Power Plant Fly Ash In Malawi

introduction selenium se is an essential trace element for human and animals it is a double-edged sword element that may negatively affect the human body when inadequately or excessively taken hartikainen 2005 mombo et al 2015approximately 051 billion of the population have suboptimal se intake li et al 2010 with an increased risk of several diseases combs 2001.

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