Title: Uptake and accumulation of four PPCP/EDCs in two leafy vegetables.

Authors: Dodgen, L K; Li, J; Parker, D; Gan, J J

Published In Environ Pollut, (2013 Nov)

Abstract: Many pharmaceutical and personal care products (PPCPs) and endocrine-disrupting chemicals (EDCs) are present in reclaimed water, leading to concerns of human health risks from the consumption of food crops irrigated with reclaimed water. This study evaluated the potential for plant uptake and accumulation of four commonly occurring PPCP/EDCs, i.e., bisphenol A (BPA), diclofenac sodium (DCL), naproxen (NPX), and 4-nonylphenol (NP), by lettuce (Lactuca sativa) and collards (Brassica oleracea) in hydroponic culture, using (14)C-labeled compounds. In both plant species, plant accumulation followed the order of BPA > NP > DCL > NPX and accumulation in roots was much greater than in leaves and stems. Concentrations of (14)C-PPCP/EDCs in plant tissues ranged from 0.22 ± 0.03 to 927 ± 213 ng/g, but nearly all (14)C-residue was non-extractable. PPCP/EDCs, particularly BPA and NP, were also extensively transformed in the nutrient solution. Dietary uptake of these PPCP/EDCs by humans was predicted to be negligible.

PubMed ID: 23911624

MeSH Terms: Benzhydryl Compounds/analysis; Benzhydryl Compounds/metabolism; Brassica/metabolism; Diclofenac/analysis; Diclofenac/metabolism*; Endocrine Disruptors/analysis; Endocrine Disruptors/metabolism*; Lactuca/metabolism; Pharmaceutical Preparations/analysis; Pharmaceutical Preparations/metabolism*; Phenols/analysis; Phenols/metabolism; Soil Pollutants/analysis; Soil Pollutants/metabolism*; Vegetables/metabolism*; Waste Disposal, Fluid; Water Pollutants, Chemical/analysis; Water Pollutants, Chemical/metabolism