Environmental Engineering Reference
In-Depth Information
Possible
outcome
Sediment
chemistry
Toxicity
test
Benthic
community
Tissue
chemistry Possible conclusions
8
+
−
+
+
Contaminant-induced impacts on sediment-dwelling organisms and
higher trophic levels are likely to be observed; toxicity tests are not
sensitive enough to detect adverse effects; and, bioaccumulation
of sediment-associated contaminants has the potential to adversely
affect aquatic-dependent wildlife and/or human health.
9
+
+
+
−
Contaminant-induced impacts on sediment-dwelling organisms are
likely to be observed; elevated levels of sediment-associated
contaminants are likely contributing to sediment toxicity and
benthic community impairment; and, bioaccumulation of
sediment-associated contaminants is unlikely to be adversely affect
aquatic-dependent wildlife and/or human health.
10
−
−
−
−
Contaminant-induced impacts are unlikely to be observed; sediment-
associated contaminants are unlikely to adversely affect sediment-
dwelling organisms; and, bioaccumulation of sediment-associated
contaminants is unlikely to adversely affect aquatic-dependent
wildlife and/or human health.
11
+
−
−
−
Contaminant-induced impacts are unlikely to be observed; the
bioavailability of sediment-associated contaminants is likely to be
limited; and, bioaccumulation of sediment-associated contaminants
is unlikely to adversely affect aquatic-dependent wildlife and/or
human health.
12
−
+
−
−
Contaminant-induced impacts are unlikely to be observed, based on
the COPCs that were evaluated; unmeasured factors (e.g., physical
factors or contaminants) are likely to be contributing to sediment
toxicity; and, bioaccumulation of sediment-associated
contaminants is unlikely to adversely affect aquatic-dependent
wildlife and/or human health.
13
−
−
+
−
Contaminant-induced impacts on sediment-dwelling organisms are
unlikely to be observed, based on the COPCs that were evaluated;
adverse effects on sediment-dwelling organisms are likely due to
physical factors and/or unmeasured chemicals are stressing
benthos and toxicity tests are not sensitive enough to detect
effects; and, bioaccumulation of sediment-associated contaminants
is unlikely to adversely affect aquatic-dependent wildlife and/or
human health.
14
+
+
−
−
Contaminant-induced impacts on sediment-dwelling organisms are
likely to be observed; high variability in the benthic community
metrics may be masking contaminant-related effects; and,
bioaccumulation of sediment-associated contaminants is unlikely to
adversely affect aquatic-dependent wildlife and/or human health.
15
−
+
+
−
Contaminant-induced impacts on sediment-dwelling organisms are
likely to be observed, based on the COPCs that were evaluated;
unmeasured contaminants are likely contributing to sediment
toxicity and benthic impairment; and, bioaccumulation of
sediment-associated contaminants is unlikely to adversely affect
aquatic-dependent wildlife and/or human health.
16
+
−
+
−
Contaminant-induced impacts on sediment-dwelling organisms are
likely to be observed; toxicity tests are not sensitive enough to
detect adverse effects; and, bioaccumulation of sediment-
associated contaminants is unlikely to adversely affect aquatic-
dependent wildlife and/or human health.
+, Indicator classifi ed as affected; as determined based on comparison to the established target.
−
, Indicator not classifi ed as affected; as determined based on comparison to the established target.
