In situ evaluations of storm water toxicity due polycyclic aromatic hydrocarbons associated with particulate matter
- Wright State Univ., Dayton, OH (United States)
Polycyclic aromatic hydrocarbons (PAHs) are widespread pollutants that enter the aquatic environment from many anthropogenic sources, as well as natural sources, and have been shown to cause a wide range of toxic effects in freshwater and marine organisms. PAHs are subject to photomodification by ultraviolet (UV) radiation to more water soluble and more toxic forms. In situ chambers containing Ceriodaphnia dubia were used to observe this phenomenon. These chambers were placed in a stream contaminated with PAHs. These chambers were placed in area shielded and exposed to UV wavelengths. Toxicity is only shown when UV wavelengths are able to penetrate the water column. Chemical analysis reveals that the majority of the PAHs present are associated with particulate matter. Chemical analysis of the sediment reveals PAH levels much higher than that of the water column. The level of PAHs associated with suspended matter increases during a storm event. This basic test supports the phototoxicity of PAHs associated with particulate matter.
- OSTI ID:
- 37505
- Report Number(s):
- CONF-9410273-; TRN: IM9519%%429
- Resource Relation:
- Conference: 15. annual meeting of the Society of Environmental Toxicology and Chemistry (SETAC), Denver, CO (United States), 30 Oct - 3 Nov 1994; Other Information: PBD: 1994; Related Information: Is Part Of Society of Environmental Toxicology and Chemistry 15th annual meeting: Abstract book. Ecological risk: Science, policy, law, and perception; PB: 286 p.
- Country of Publication:
- United States
- Language:
- English
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