Mesocosm field season 1995: Quantification of 15 polycyclic aromatic hydrocarbons (PAHs) in creosote-contaminated water and sediments by HPLC-fluorescence detector
Conference
·
OSTI ID:452111
- Univ. of Guelph, Ontario (Canada). Centre for Toxicology
- Canada Centre for Inland Waters, Burlington, Ontario (Canada)
Experimental design, sampling, sample preservation, extraction with a minimum cleanup procedure and subsequent quantification of 15 priority PAHs as a result of an introduction of creosote to mesocosms are presented. Creosote introduction to the mesocosms reflects two major types of creosote contamination in the aquatic environment: (1) leaching from creosote-impregnated pilings, and (2) introduction of pure creosote to aquatic environments in a spill event, and subsequent contamination of sediments by creosote. Dosing for the creosote-impregnated pilings study consisted of six levels with mesocosms containing 0.5 to 6 treated pilings each and two control ponds. The liquid creosote study consisted of logarithmic nominal concentrations ranging from 0.05 to 100 uL/L. The creosote-impregnated pilings study revealed that the concentration of PAHs in the water column increased steadily with time, reaching maximum levels at 7 days post-treatment, and declining thereafter. The liquid creosote study revealed that the high initial post-treatment concentration of PAHs decreased exponentially with time. The sediment data for both creosote studies will also be discussed.
- OSTI ID:
- 452111
- Report Number(s):
- CONF-961149--
- Country of Publication:
- United States
- Language:
- English
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