Abstract：
:/ In 1997, Oregon enacted amendments to its state hazardous waste site cleanup law which emphasize risk-based remedial action decisions. In a departure from US EPA practice, the amended statute and associated rules require that protection of ecological receptors occur at the population level for all plants and animals not listed as threatened or endangered. By rule, the acceptable risklevel for populations of ecological receptors is a 10% or less chance that 20% or more of the total local population would receive an exposure greater than the toxicity reference value for a hazardous substance. This paper describes a practical procedure for performing population-level ecological risk assessments using a combination of relatively simple techniques. The procedure involves: (1) establishing a distribution of exposures and a contaminant-specific toxicity reference value, either as a point value or a distribution, for an individual receptor, (2) estimating the abundance of these receptors within their local populations, (3) estimating the probability of an individual receptor experiencing an exposure in excess of the toxicity reference value, (4) estimating the number of individual receptors in the local population likely to experience an exposure above the toxicity reference value greater than 10% of the time, and (5) determining whether this number is greater than 20% of the total local population.
journal_name
Environ Managejournal_title
Environmental managementauthors
Hope BKdoi
10.1007/s002679910022keywords:
subject
Has Abstractpub_date
2000-03-01 00:00:00pages
281-289issue
3eissn
0364-152Xissn
1432-1009pii
9910022journal_volume
25pub_type
杂志文章abstract：:Since wetland construction projects are becoming more commonplace, meaningful follow-up studies are needed to evaluate how these systems change over time. To that end, the objective of our study was to examine the temporal changes in plant community composition and water chemistry in two constructed wetlands. We inves...
journal_title：Environmental management
pub_type： 杂志文章
doi：10.1007/s00267-013-0035-7
更新日期：2013-05-01 00:00:00
abstract：:Implementation of Marine Protected Areas (MPAs) has always a step-zero, i.e., an initial phase when the idea is incepted, communicated and negotiated among stakeholders. What happens during this phase is likely to have an impact later on. If not done right, the management of the MPA may encounter problems at later sta...
journal_title：Environmental management
pub_type： 杂志文章
doi：10.1007/s00267-010-9587-y
更新日期：2011-04-01 00:00:00
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journal_title：Environmental management
pub_type： 已发布勘误
doi：10.1007/s00267-020-01359-5
更新日期：2020-10-01 00:00:00
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journal_title：Environmental management
pub_type： 杂志文章
doi：10.1007/s00267-006-0149-2
更新日期：2007-05-01 00:00:00
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journal_title：Environmental management
pub_type： 杂志文章
doi：10.1007/s002670010166
更新日期：2001-04-01 00:00:00
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journal_title：Environmental management
pub_type： 杂志文章
doi：10.1007/s002670010094
更新日期：2000-10-01 00:00:00
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journal_title：Environmental management
pub_type： 杂志文章
doi：10.1007/s00267-014-0337-4
更新日期：2014-10-01 00:00:00
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journal_title：Environmental management
pub_type： 杂志文章
doi：10.1007/s00267-003-0103-5
更新日期：2005-04-01 00:00:00
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journal_title：Environmental management
pub_type： 杂志文章
doi：10.1007/s002679900212
更新日期：1999-07-01 00:00:00
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journal_title：Environmental management
pub_type： 杂志文章
doi：10.1007/s00267-014-0274-2
更新日期：2014-07-01 00:00:00
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journal_title：Environmental management
pub_type： 杂志文章
doi：10.1007/s00267-014-0364-1
更新日期：2014-12-01 00:00:00
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journal_title：Environmental management
pub_type： 杂志文章
doi：10.1007/s00267-011-9795-0
更新日期：2012-02-01 00:00:00
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journal_title：Environmental management
pub_type： 杂志文章
doi：10.1007/s00267-005-0228-9
更新日期：2007-01-01 00:00:00
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journal_title：Environmental management
pub_type： 杂志文章
doi：10.1007/s00267-004-1047-0
更新日期：2005-08-01 00:00:00
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journal_title：Environmental management
pub_type： 杂志文章
doi：10.1007/s00267-017-0961-x
更新日期：2018-01-01 00:00:00
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journal_title：Environmental management
pub_type： 杂志文章
doi：10.1007/s00267-015-0590-1
更新日期：2016-01-01 00:00:00
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journal_title：Environmental management
pub_type： 杂志文章
doi：10.1007/s00267-003-0055-9
更新日期：2003-06-01 00:00:00
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journal_title：Environmental management
pub_type： 杂志文章
doi：10.1007/s00267-012-9854-1
更新日期：2012-07-01 00:00:00
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journal_title：Environmental management
pub_type： 杂志文章
doi：10.1007/s00267-012-9911-9
更新日期：2012-10-01 00:00:00
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pub_type： 杂志文章
doi：10.1007/s00267-011-9704-6
更新日期：2011-09-01 00:00:00
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pub_type： 杂志文章
doi：10.1007/s00267-003-0020-7
更新日期：2003-09-01 00:00:00
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pub_type： 杂志文章
doi：10.1007/s00267-010-9569-0
更新日期：2011-02-01 00:00:00
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journal_title：Environmental management
pub_type： 杂志文章
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更新日期：2011-03-01 00:00:00
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journal_title：Environmental management
pub_type： 杂志文章
doi：10.1007/s002679900183
更新日期：1999-02-01 00:00:00
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journal_title：Environmental management
pub_type： 杂志文章
doi：10.1007/s00267-008-9202-7
更新日期：2009-02-01 00:00:00
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journal_title：Environmental management
pub_type： 杂志文章
doi：10.1007/s00267-012-9967-6
更新日期：2013-01-01 00:00:00
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journal_title：Environmental management
pub_type： 杂志文章
doi：10.1007/s00267-014-0267-1
更新日期：2014-06-01 00:00:00
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journal_title：Environmental management
pub_type： 杂志文章
doi：10.1007/s00267-007-9025-y
更新日期：2007-12-01 00:00:00
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pub_type： 杂志文章
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更新日期：2013-11-01 00:00:00
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journal_title：Environmental management
pub_type： 杂志文章
doi：10.1007/s00267-007-9012-3
更新日期：2007-12-01 00:00:00
