Methods for Deriving Pesticide Aquatic Life Criteria - Reviews of Environmental Contamination and Toxicology - page 21

Table 1 Components to be addressed by water quality criteria derivation methodology
Category

Component (listed alphabetically) Reference

Criteria types/uses
(Section 4)

One type/level of criterion versus multiple
types/levels

a,c,d,e

Use in regulatory programs a,b,c,d

Protection level
(Section 5)

Economically, ecologically, recreationally
important species

f

Ecosystem function and structure a,c,d

Individuals versus populations c

Justification of percentile levels (i.e., 10th, 5th, 1st) b,c,d

Probability of over- or underprotection a,b,c,d

Ecotoxicity and physical-
chemical data

Data quality and quantity
Acceptability criteria b,c,d

(Section 6) Minimum data set a,b,c,d

Minimum literature search f

Taxa number and diversity a,b,c

Ecological relevance c,d

Kinds of data

Acute (LC x /EC x , NOEC) versus chronic a,b,c,d

(EC x , NOEC)

Ecosystem, field, semi-field, laboratory a,b,c,d

Multispecies versus single-species a,d

Traditional versus nontraditional endpoints a,b,c,d

Criteria calculation Bioaccumulation/secondary poisoning a,b,d

(Section 7) Community/ecosystem/population/foodweb models a,c,d

Confidence limits for criteria/explicitly stated
uncertainty

a,b,c,d

Degree of aggregation of taxa b

Derivation and justification of assessment/uncer-
tainty factors

b,c,d,e

Encouragement data generation c,d

Environmental fate of chemicals a,d

Exposure considerations

Bioavailability a,d

Short-term/acute (including pulse)
and long-term/chronic

a,b,c,d

Magnitude, duration and frequency a,b,c,d

Monitoring considerations d

Recovery from toxic events a,b

Harmonization/coherence across media a,d

Incorporation of physical-chemical data a,b,d

Kinetic-based modeling/time to event analysis a,b,c

Mixtures/multiple stressors a,b,d

Multipathway (e.g., dietary) exposure a,b

Plants and animals combined versus separate a,b,d

Risk assessment approach a,b,c,d

Separate acute and chronic criteria versus single
criterion

a,b

Site specificity a,b,c

Small data sets a,b,e

(continued)