Photo-induced toxicity of polycyclic aromatic hydrocarbons to fish (Lepomis spp. , Lepomis macrochirus, and Pimephales promelas)
The acute toxicity of polycyclic aromatic hydrocarbons (PAH) to fish in the presence of solar radiation has been assessed. These studies were conducted in a laboratory system under simulated sunlight. Anthracene, a linear 3-ring PAH was used as a model compound in the examination of light intensity and photoperiod effects, the elucidation of possible sites and modes of toxic action, and the development of an environmental hazard assessment. The primary test species in these studies was juvenile sunfish (Lepomis spp., and Lepomis macrochirus). Eleven other PAH were examined for potential photo-activity with larvae of the fathead minnow (Pimephales promelas). A structure-activity relationship has been developed based on molecular structure and photochemical properties which can predictively classify a compound as being phototoxic or non-phototoxic. The results of these experiments are environmentally significant since when compared to current natural PAH concentrations in water and in fish tissue, there are waters in which photo-induced PAH toxicity may presently occur. It is concluded that solar radiation is an important accessory parameter that deserves consideration in the toxicity assessment of PAH in the aquatic environment.
- Research Organization:
- Michigan State Univ., East Lansing (USA)
- OSTI ID:
- 5114020
- Resource Relation:
- Other Information: Thesis (Ph. D.)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
FISHES
POLYCYCLIC AROMATIC HYDROCARBONS
INJURIES
TOXICITY
PHOTOCHEMICAL REACTIONS
SOLAR RADIATION
VISIBLE RADIATION
ANIMALS
AQUATIC ORGANISMS
AROMATICS
CHEMICAL REACTIONS
ELECTROMAGNETIC RADIATION
HYDROCARBONS
ORGANIC COMPOUNDS
RADIATIONS
STELLAR RADIATION
VERTEBRATES
560305* - Chemicals Metabolism & Toxicology- Vertebrates- (-1987)