Soil Microbial Communities and Ecological Risk Assessment: Risk Assessors’ Perspective
作者:
Ruth N. Hull,
Ulysses Klee,
Douglas Bryant,
Todd Copeland,
期刊:
Human and Ecological Risk Assessment: An International Journal
(Taylor Available online 1999)
卷期:
Volume 5,
issue 4
页码: 707-714
ISSN:1080-7039
年代: 1999
DOI:10.1080/10807039.1999.9657735
出版商: TAYLOR & FRANCIS
关键词: ecological risk assessment;soil microorganisms;microbial community assessment
数据来源: Taylor
摘要:
In the past, ecological risk assessments (ERAs) have generally overlooked the soil microbial community when evaluating the impacts of contaminants in soil. However, the soil microbial community, which includes bacteria and fungi, performs functions necessary for overall ecosystem health, including nitrogen fixation, nutrient cycling, and even degradation of contaminants. The incorporation of the soil microbial community into ERA requires the compilation of adequate toxicity data to complete the hazard assessment phase of the risk assessment. A variety of soil microbial toxicity tests exist that provide rapid and inexpensive results. Surveys of the microbial community at a contaminated site may also provide insight as to their functioning in the presence of contaminants. This paper explores the use of toxicity tests and surveys to evaluate chemical toxicity to microbes. However, many questions related to the best methodological approach to an ERA of the soil microbial community have yet to be answered.
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