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Refinement of biodegradation tests methodologies and the proposed utility of new microbial ecology techniques.

Abstract：

:Society's reliance upon chemicals over the last few decades has led to their increased production, application and release into the environment. Determination of chemical persistence is crucial for risk assessment and management of chemicals. Current established OECD biodegradation guidelines enable testing of chemicals under laboratory conditions but with an incomplete consideration of factors that can impact on chemical persistence in the environment. The suite of OECD biodegradation tests do not characterise microbial inoculum and often provide little insight into pathways of degradation. The present review considers limitations with the current OECD biodegradation tests and highlights novel scientific approaches to chemical fate studies. We demonstrate how the incorporation of molecular microbial ecology methods (i.e., 'omics') may improve the underlying mechanistic understanding of biodegradation processes, and enable better extrapolation of data from laboratory based test systems to the relevant environment, which would potentially improve chemical risk assessment and decision making. We outline future challenges for relevant stakeholders to modernise OECD biodegradation tests and put the 'bio' back into biodegradation.

journal_name

Ecotoxicol Environ Saf

journal_title

Ecotoxicology and environmental safety

authors

Kowalczyk A,Martin TJ,Price OR,Snape JR,van Egmond RA,Finnegan CJ,Schäfer H,Davenport RJ,Bending GD

doi

10.1016/j.ecoenv.2014.09.021

subject

Has Abstract

pub_date

2015-01-01 00:00:00

pages

9-22

eissn

0147-6513

issn

1090-2414

pii

S0147-6513(14)00438-2

journal_volume

111

pub_type

杂志文章,评审

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