期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 283, 期 -, 页码 865-870出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2014.10.018
关键词
Endocrine-disrupting chemicals; Bisphenol A; BPA; Nonylphenol; NP; Bioaccumulation
资金
- USDA National Institute of Food and Agriculture-Agriculture and Food Research Initiative (NIFA-AFRI) [2011-67019-21119]
The potential uptake and distribution of bisphenol A (BPA) and nonylphenol (NP) (from reclaimed irrigation water) in edible crops was investigated. BPA and NP were spiked into simulated reclaimed water at environmentally relevant concentrations. Two crops (lettuce, Lactuca sativa and tomato,Lycopersicon esculentum) were grown hydroponically in a greenhouse using the spiked irrigation water under two irrigation exposure scenarios (overhead foliar exposure and subsurface root exposure). EPA concentrations in tomato fruit were 26.6 +/- 5.8 (root exposure) and 18.3 +/- 3.5 (foliar exposure) mu g kg(-1), while concentrations in lettuce leaves were 80.623.1 (root exposure) and 128.9 +/- 17.4 (foliar exposure) mu g kg(-1). NP concentrations in tomato fruit were 46.1 +/- 6.6 (root exposure) and 24.6 +/- 6.4 (foliar exposure) mu g kg(-1), while concentrations in lettuce leaves were 144.1 +/- 9.2 (root exposure) and 195.0 +/- 16.9 (foliar exposure) mu g kg(-1). BPA was relatively mobile in lettuce plants regardless of exposure route. Limited mobility was observed for NP in both crops and EPA in tomatoes. The estimated daily intake of BPA and NP through consumption of vegetables irrigated with reclaimed water ranged from 8.9-62.9 to 11.9-95.1 mu g, respectively, depending on the exposure route. (C) 2014 Elsevier B.V. All rights reserved.
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