Accumulation of Lead and Arsenic by Potato Grown on Lead–Arsenate-Contaminated Orchard Soils

Understanding arsenic dynamics in agronomic systems to predict and prevent uptake by crop plants

“…Higher yield-limiting arsenic levels have been recorded in rice: 20–100 mg/kg in above ground biomass, and 1000 mg/kg in root tissue 142 . By contrast, potatoes ( Solanum tuberosum L.) suffered no growth inhibition in soils containing 290 mg/kg arsenic 71 . In some plants species, organic forms are more toxic than inorganic, for example in rice (order of toxicity: MMA > arsenite > arsenate = DMA) 143 , and in smooth cordgrass ( Spartina alterniflora Loisel) (DMA = MMA > arsenite > arsenate) 144 .…”

“…Demethylation and methylation occurred because both inorganic arsenic species and DMA were also detected in the percolating water 70 . As with mining-impacted soils, plants grown on soils that are high in arsenic from arsenical pesticide contamination take up higher levels of arsenic into their edible tissues, observed for example in potatoes 71 , carrots 72 and leafy green vegetables 73, 74 .…”

Quantitative Risk Assessment of Environmental Hazards Generated by a Tailings Embankment: case study Cabeço do Pião, Portugal

“…The values determined by Candeias c (2014) in potatoes cultivated in the village of S. Francisco de Assis, in agricultural soils heavily contaminated with As, reveal values of 3.5 m/ kg. This value appears excessive compared to the values previously indicated (Ma-cLean,1981, Haque, 2015, Codling, 2016. Lanhade (2013) in a systematic study focusing on various types of vegetables and contaminants found arsenic concentrations of between 0.6 and 1.1 mg/kg in cabbages and between 0.50 and 0.8 mg/kg for potatoes, with both concentrations being expressed on a dry basis.…”

“…In another study, Codling (2016) studied the concentrations of arsenic in soils contaminated with lead and arsenate, having found for the peeled tubers concentrations varying between 0.44 and 1.44 mg/kg. Finally, Haque (2015) studied the arsenic concentration of different varieties of potatoes cultivated in soils with different concentrations in As, from 0.25 to 50 mg/ kg.…”

The Safe Urban Harvests Study: A Community-Driven Cross-Sectional Assessment of Metals in Soil, Irrigation Water, and Produce from Urban Farms and Gardens in Baltimore, Maryland

“…Consumers may also be exposed via ingestion of contaminated urban-grown produce. A patchwork body of literature exists investigating the relationship between metals in soils and various types of urban-grown produce via uptake ( Codling et al. 2016 ; Codling and Onyeador 2017 ; McBride et al.…”