Remediation of light extractable petroleum hydrocarbons in water by algae.

摘要

This thesis investigates the potential for diatoms to remediate hydrocarbons in freshwater ecosystems with the intent of reviewing the current environmental management practices in the Yukon. A hydrocarbon Contaminated Site in Whitehorse, Yukon was selected because it indicated the occurrences of natural remediation processes. Algae's role in this activity was studied in a laboratory. Study results indicated that the species of algae at the site were not directly responsible for remediatory action; however, remediation did occur in the presence of algae, cyanobacteria and bacteria. With the understanding that natural remediation of contaminants occur, it was concluded that the Yukon Contaminated Sites Regulation should be reviewed to incorporate innovative solutions to contaminated sites. It is recommended that protocols be updated for more public transparency; and that a risk assessment approach to site remediation be employed. All of this is designed to shift thinking away from Environmental Management and towards Contaminant Management.