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DOI | 10.1016/j.scitotenv.2017.06.198 |
Developing and applying metamodels of high resolution process-based simulations for high throughput exposure assessment of organic chemicals in riverine ecosystems | |
Barber, M. Craig1; Isaacs, Kristin K.2; Tebes-Stevens, Caroline1 | |
发表日期 | 2017-12-15 |
ISSN | 0048-9697 |
卷号 | 605页码:471-481 |
英文摘要 | As defined by Wikipedia (https://en.wikipedia.org/wiki/Metamodeling), "(a) metamodel or surrogate model is a model of a model, and metamodeling is the process of generating such metamodels." The goals of metamodeling include, but are not limited to (1) developing functional or statistical relationships between a model's input and output variables for model analysis, interpretation, or information consumption by users' clients; (2) quantifying a model's sensitivity to alternative or uncertain forcing functions, initial conditions, or parameters; and (3) characterizing the model's response or state space. Using five models developed by the US Environmental Protection Agency, we generate a metamodeling database of the expected environmental and biological concentrations of 644 organic chemicals released into nine US rivers from wastewater treatment works (WTWs) assuming multiple loading rates and sizes of populations serviced. The chemicals of interest have log n-octanol/water partition coefficients (logK(OW)) ranging from 3 to 14, and the rivers of concern have mean annual discharges ranging from 1.09 to 3240 m(3)/s. Log-linear regression models are derived to predict mean annual dissolved and total water concentrations and total sediment concentrations of chemicals of concern based on their logK(OW), Henry's Law Constant, and WTW loading rate and on the mean annual discharges of the receiving rivers. Metamodels are also derived to predict mean annual chemical concentrations in fish, invertebrates, and periphyton. We corroborate a subset of thesemetamodels using field studies focused on brominated flame retardants and discuss their application for high throughput screening of exposures to human and ecological populations and for analysis and interpretation of field data. Published by Elsevier B.V. |
英文关键词 | Integrated modeling;Fate and transport;Bioaccumulation;Trophic transfer;Brominated flame retardants;BASS, CTS, EXAMS, KABAM, SHEDS-HT |
语种 | 英语 |
WOS记录号 | WOS:000408275500050 |
来源期刊 | SCIENCE OF THE TOTAL ENVIRONMENT |
来源机构 | 美国环保署 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/56807 |
作者单位 | 1.US EPA, Natl Exposure Res Lab, Syst Exposure Div, 960 Coll Stn Rd, Athens, GA 30605 USA; 2.US EPA, Natl Exposure Res Lab, Computat Exposure Div, 109 TW Alexander Dr, Res Triangle Pk, NC 27709 USA |
推荐引用方式 GB/T 7714 | Barber, M. Craig,Isaacs, Kristin K.,Tebes-Stevens, Caroline. Developing and applying metamodels of high resolution process-based simulations for high throughput exposure assessment of organic chemicals in riverine ecosystems[J]. 美国环保署,2017,605:471-481. |
APA | Barber, M. Craig,Isaacs, Kristin K.,&Tebes-Stevens, Caroline.(2017).Developing and applying metamodels of high resolution process-based simulations for high throughput exposure assessment of organic chemicals in riverine ecosystems.SCIENCE OF THE TOTAL ENVIRONMENT,605,471-481. |
MLA | Barber, M. Craig,et al."Developing and applying metamodels of high resolution process-based simulations for high throughput exposure assessment of organic chemicals in riverine ecosystems".SCIENCE OF THE TOTAL ENVIRONMENT 605(2017):471-481. |
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