The contamination pathway of as from groundwater through the water soil plant human system is shown in fig 6 the health risk index hri of individual crops and vegetables was calculated following the approach described in the methods section. Safety this poses a potential dietary risk to human health in addition to the risk from drinking contaminated groundwater less well known but potentially more serious is the risk of as to crop production continuous build up of as in the soil from as contaminated irrigation water may reduce crop. Health risks of arsenic because arsenic is a natural part of the earth low levels of arsenic are present in soil water food and air environments higher levels arsenic may cause symptoms ranging from nausea arsenic chemical assessment summary integrated risk information system iris national center for environmental assessment . Arsenic in food chain through irrigation water soil crop pathway risk assessment for sustainable agriculture of bangladesh bashir ahmed msc program integrated water resource management institutionen for stad och land master thesis ex0523. Appropriate standards and policies for arsenic in soil focusing on ensuring the health and safety of delawareans this arsenic risk management plan is the outcome of a process that included significant public participation and review by a wide range of scientific experts and state of delaware agencies
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