The underprotective features of the sediment quality criterion for fluoranthene in the presence of ultraviolet radiation

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:212037

Ramirez-Romero, P ^[1]; Oris, J T ^[2]

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1. Autonomous Metropolitan Univ., Mexico City (Mexico). Hydrobiology Dept.
2. Miami Univ., Oxford, OH (United States). Zoology Dept.

The goal of this study was to evaluate the fluoranthene sediment quality criterion (SQC) for the protection of benthic organisms in the presence of ultraviolet (UV) radiation. The authors exposed the benthic amphipod Hyalella azteca to clean and fluoranthene-spiked sediments at the SQC concentration (620 {micro}g/goc) in the presence or absence of UV radiation. When UV radiation was used the test-organisms showed signs of stress (slow response to physical disturbance) after 48 hrs. When comparing the data of adults vs. juveniles, the authors found that the adults were more sensitive. After 5 days of exposure 90% of the adults were dead vs. 62% of the juveniles. This could have been the result of greater exposure to UV radiation caused by a larger body surface area on the adults. Studies of the combined effects of fluoranthene contaminated sediments and UV radiation using benthic organisms indicate that the current fluoranthene SOC requires further examination.

• OSTI ID: 212037
• Report Number(s): CONF-9511137--; ISBN 1-880611-03-1
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
56 BIOLOGY AND MEDICINE
APPLIED STUDIES
BENTHOS
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
BIOLOGICAL STRESS
CONDENSED AROMATICS
CRUSTACEANS
ECOLOGICAL CONCENTRATION
POLYCYCLIC AROMATIC HYDROCARBONS
SEDIMENTS
SOIL CHEMISTRY
STANDARDS
SYNERGISM
TOXICITY
ULTRAVIOLET RADIATION
WATER QUALITY