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Critical Review of Eutrophication Models for Life Cycle Assessment.


ABSTRACT: This paper evaluates the current state of life cycle impact assessment (LCIA) methods used to estimate potential eutrophication impacts in freshwater and marine ecosystems and presents a critical review of the underlying surface water quality, watershed, marine, and air fate and transport (F&T) models. Using a criteria rubric, we assess the potential of each method and model to contribute to further refinements of life cycle assessment (LCA) eutrophication mechanisms and nutrient transformation processes as well as model structure, availability, geographic scope, and spatial and temporal resolution. We describe recent advances in LCIA modeling and provide guidance on the best available sources of fate and exposure factors, with a focus on midpoint indicators. The critical review identifies gaps in LCIA characterization modeling regarding the availability and spatial resolution of fate factors in the soil compartment and identifies strategies to characterize emissions from soil. Additional opportunities are identified to leverage detailed F&T models that strengthen existing approaches to LCIA or that have the potential to link LCIA modeling more closely with the spatial and temporal realities of the effects of eutrophication.

SUBMITTER: Morelli B 

PROVIDER: S-EPMC6697055 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature

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Critical Review of Eutrophication Models for Life Cycle Assessment.

Morelli Ben B   Hawkins Troy R TR   Niblick Briana B   Henderson Andrew D AD   Golden Heather E HE   Compton Jana E JE   Cooter Ellen J EJ   Bare Jane C JC  

Environmental science & technology 20180817 17


This paper evaluates the current state of life cycle impact assessment (LCIA) methods used to estimate potential eutrophication impacts in freshwater and marine ecosystems and presents a critical review of the underlying surface water quality, watershed, marine, and air fate and transport (F&T) models. Using a criteria rubric, we assess the potential of each method and model to contribute to further refinements of life cycle assessment (LCA) eutrophication mechanisms and nutrient transformation  ...[more]

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