Use of nuclear receptor luciferase-based bioassays to detect endocrine active chemicals in a biosolids-biochar amended soil 机翻标题: 暂无翻译,请尝试点击翻译按钮。

来源
Chemosphere
年/卷/期
2017 / 181 /
页码
160-167
出版商
Elsevier Ltd
ISSN号
00456535
作者
Anderson, Carolyn G. 1;Joshi, Geetika 1;Bair, Daniel A. 1;Oriol, Charlotte 2;He, Guochun 3;Parikh, Sanjai J. 1;Denison, Michael S. 3;Scow, Kate M. 1 1 Department of Land, Air and Water Resources, University of California, One Shields Avenue, 95616, United States sjparikh@ucdavis.edu 2 Laboratoire HydroSciences Montpellier, Université Montpellier 2, Maison des Sciences de l'Eau, 300, Avenue du Professeur Emile Jeanbrau, 34095, France 3 Department of Environmental Toxicology, University of California, One Shields Avenue, 95616, United States;
摘要
Biosolids are a potentially valuable source of carbon and nutrients for agricultural soils; however, potential unintended impacts on human health and the environment must be considered. Virtually all biosolids contain trace amounts endocrine-disrupting chemicals derived from human use of pharmaceuticals and personal care products (PPCPs). One potential way to reduce the bioavailability of PPCPs is to co-apply biosolids with biochar to soil, because biochar's chemical (e.g., aromaticity) and physical properties (e.g., surface area) give it a high affinity to bind many organic chemicals in the environment. We developed a soil-specific extraction method and utilized a luciferase-based bioassay (CALUX) to detect endocrine active chemicals in a biosolids-biochar co-amendment soil greenhouse study. Both biochar (walnut shell, 900 °C) and biosolids had positive impacts on carrot and lettuce biomass accumulation over our study period. However, the walnut shell biochar stimulated aryl hydrocarbon receptor activity, suggesting the presence of potential endocrine active chemicals in the biochar. Since the biochar rate tested (100 t ha−1) is above the average agronomic rate (10–20 t ha−1), endocrine effects would not be expected in most environmental applications. The effect of high temperature biochars on endocrine system pathways must be explored further, using both quantitative analytical tools to identify potential endocrine active chemicals and highly sensitive bioanalytical assays such as CALUX to measure the resulting biological activity of such compounds.
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关键词/主题词
Organic chemicals (major);Bioactivity;Bioassay;Biochemistry;Biological materials;Biosolids;Carbon;Chemicals;Endocrine disrupters;Indicators (chemical);Soils;
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