ECOLOGICAL RISK ASSESSMENT for ATLANTIC WOOD INDUSTRIES

4,98
MB

53
stron

4439
ID National Oceanic and Atmospheric Administration

1992
rok

CONTENTS

PURPOSE.1

SCOPE OF ASSESSMENT.1

SITE CHARACTERIZATION2

AQUATIC ECOLOGICAL RISK ASSESSMENT.2

POTENTIAL RECEPTORS2

Aquatic Habitats5

Habitats of Special Concern.6

Species.6

EXPOSURE ASSESSMENT.7

Contaminants of Concern8

Sources of Contaminants.12

Fate and Transport Analysis13

Polycyclic Aromatic Hydrocarbons13

Pentachlorophenol18

Polychlorinated Dibenzo-p-Dioxins and Dibenzofurans18

Trace Elements.19

Exposure Pathways20

Estimated Exposure Levels20

Uncertainty Analysis21

TOXOCITY ASSESSMENT.21

Reported Effects of Contaminants of Concern21

Polycylic Aromatic Hydrocarbons21

Pentachlorophenol26

Polychlorinated Dibenzo-p-Dioxins and Polychlorinated Dibenzofurans26

Trace Elements.27

Site-specific Toxicity Studies28

Existing Toxicity-based Criteria and Standards.28

RISK CHARACTERIZATION.29

Comparison Against Criteria and Standards29

Comparison of Estimated Exposure Levels with Toxicity Data30

Adverse Biological Effects31

Joint Action of Chemical Mixtures32

TERRESTRIAL ECOLOGICAL RISK ASSESSMENT33

POTENTIAL RECEPTORS33

Terrestrial Habitat33

Habitats of Special Concern.33

Species.33

EXPOSURE ASSESSMENT.36

Contaminants of Concern36

Sources of Contaminants.36

Fate and Transport Analysis36

Exposure Pathways36

Estimated Exposure Levels36

Ingestion Doses.36

Dermal Exposure37

Inhalation Exposure37

Uncertainty Analysis37

TOXICITY ASSESSMENT.39

Reported Effects of Contaminants of Concern39

Site-Specific Toxicity Tests.42

Existing Toxicity-based Criteria and Standards.42

RISK CHARACTERIZATION.42

Comparison of Estimated Exposure Levels with Toxicity Data43

Adverse Biological Effects43

Joint Action of Chemical Mixtures43

REFERENCES.44