title: Effect of transpiration on plant accumulation and translocation of PPCP/EDCs.
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.
authors.affiliation: Department of Environmental Sciences, University of California, Riverside, CA, 92521, USA; Illinois Sustainable Technology Center, University of Illinois, Urbana-Champaign, IL, 61801, USA. Electronic address: LKDWILLOW@gmail.com.
authors.forename: Laurel K
authors.initials: LK
authors.lastname: Dodgen
authors.affiliation: Department of Environmental Sciences, University of California, Riverside, CA, 92521, USA.
authors.forename: Aiko
authors.initials: A
authors.lastname: Ueda
authors.affiliation: Department of Environmental Sciences, University of California, Riverside, CA, 92521, USA.
authors.forename: Xiaoqin
authors.initials: X
authors.lastname: Wu
authors.affiliation: Department of Environmental Sciences, University of California, Riverside, CA, 92521, USA.
authors.forename: David R
authors.initials: DR
authors.lastname: Parker
authors.affiliation: Department of Environmental Sciences, University of California, Riverside, CA, 92521, USA.
authors.forename: Jay
authors.initials: J
authors.lastname: Gan
mesh_terms: D057914:Agricultural Irrigation / Q000379:methods; D003358:Cosmetics / Q000032:analysis / Q000378:metabolism*; D052244:Endocrine Disruptors / Q000032:analysis / Q000378:metabolism*; D018545:Lactuca / Q000378:metabolism*; D018515:Plant Leaves / Q000737:chemistry / Q000378:metabolism*; D018526:Plant Transpiration / Q000502:physiology*; D012915:Soaps / Q000032:analysis / Q000378:metabolism; D012989:Soil Pollutants / Q000032:analysis / Q000378:metabolism*; D014865:Waste Disposal, Fluid / Q000379:methods; D062065:Wastewater; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000378:metabolism
chemical_list: D003358:Cosmetics; D052244:Endocrine Disruptors; D012915:Soaps; D012989:Soil Pollutants; D062065:Wastewater; D014874:Water Pollutants, Chemical
keywords: EDCs; PPCPs; Plant uptake; Transpiration; Water reuse