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Title: Effect of transpiration on plant accumulation and translocation of PPCP/EDCs.

Authors: Dodgen, Laurel K; Ueda, Aiko; Wu, Xiaoqin; Parker, David R; Gan, Jay

Published In Environ Pollut, (2015 Mar)

Abstract: The reuse of treated wastewater for agricultural irrigation in arid and hot climates where plant transpiration is high may affect plant accumulation of pharmaceutical and personal care products (PPCPs) and endocrine disrupting chemicals (EDCs). In this study, carrot, lettuce, and tomato plants were grown in solution containing 16 PPCP/EDCs in either a cool-humid or a warm-dry environment. Leaf bioconcentration factors (BCF) were positively correlated with transpiration for chemical groups of different ionized states (p < 0.05). However, root BCFs were correlated with transpiration only for neutral PPCP/EDCs (p < 0.05). Neutral and cationic PPCP/EDCs showed similar accumulation, while anionic PPCP/EDCs had significantly higher accumulation in roots and significantly lower accumulation in leaves (p < 0.05). Results show that plant transpiration may play a significant role in the uptake and translocation of PPCP/EDCs, which may have a pronounced effect in arid and hot climates where irrigation with treated wastewater is common.

PubMed ID: 25594843 Exiting the NIEHS site

MeSH Terms: Agricultural Irrigation/methods; Cosmetics/analysis; Cosmetics/metabolism*; Endocrine Disruptors/analysis; Endocrine Disruptors/metabolism*; Lactuca/metabolism*; Plant Leaves/chemistry; Plant Leaves/metabolism*; Plant Transpiration/physiology*; Soaps/analysis; Soaps/metabolism; Soil Pollutants/analysis; Soil Pollutants/metabolism*; Waste Disposal, Fluid/methods; Wastewater; Water Pollutants, Chemical/analysis; Water Pollutants, Chemical/metabolism

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