Role of climate and geography in arsenic mobility and risk at an artisanal mining site in an urbanized semi-arid environment

Removal of arsenic from smelting wastewater using Fe3O4as anin situFe source: the effect of pre-dissolution and the evolution process of scorodite

“…If As-containing wastes were randomly discharged, they will seriously pose a threat to the ecological environment and human health. [2][3][4][5][6] At present, As pollution is mainly derived from natural emission and human activity, such as mining, 7 the smelting of nonferrous metals, 8 irrigation, and pesticide use. Once As or/and its derivatives are ingested in the human body, it will eventually lead to chronic arsenic poisoning, liver damage, cirrhosis, 9 hematopoietic depression, sensory disorders of hypoxia, and even malignant tumors.…”