Surveying and localized screening of soil contamination with the growth of urban community agriculture in Northern Utah

Urban Farm DB summary

This study conducted an initial screening survey of soil contaminants (lead, arsenic, and benzo(a)pyrene) in community gardens and urban farms in Salt Lake County, Utah, where urban agriculture is expanding. Lead ranged from 14.8 to 516 mg/kg (mean 91.8) and arsenic from 2.83 to 39.3 mg/kg (mean 11.8), with all arsenic values exceeding the US EPA regional screening level of 0.68 mg/kg. The baseline data were used to develop local screening levels and soil management plans for producers.