Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Refinery water (intake and effluent) quality: Update of 1970s with 1990s toxicity testing

Journal Article · · Environmental Toxicology and Chemistry; (United States)
;  [1];  [2];  [3]
  1. EVS Environment Consultants, Vancouver, British Columbia (Canada)
  2. Pollutech Environmental Ltd., Sarnia, Ontario (Canada)
  3. Novacor Chemicals Ltd., Sarnia, Ontario (Canada)
The quality of two separate refinery intake waters and effluents was investigated: Petro-Canada (Oakville) and Novacor (Corunna Operations). This study comprised eight different test organized and 22 different toxicity end points, was built on and complemented pioneering 1970s work at the Petro-Canada refinery, and was designed to (a) determine any changes in effluent quality, (b) determine any previously unsuspected effluent toxicity, and (c) determine any potential for chronic toxicity in the effluent. Although Petro-Canada has steadily reduced contaminants in its effluent since the earlier study, toxicity has not changed and no new toxic effects were identified. Effect thresholds for the most sensitive animal species (Daphnia pulex) were 1 to 10% effluent in both studies. The Novacor effluent had lesser effects on biota than the Petro-Canada effluent. Intake waters demonstrated toxicity in some tests. Chronic effects on invertebrates and fish in receiving waters are predicted not to occur in the Novacor effluent is diluted 10- to 20-fold and the Petro-Canada effluent is diluted 50- to 100-fold.
OSTI ID:
7271190
Journal Information:
Environmental Toxicology and Chemistry; (United States), Journal Name: Environmental Toxicology and Chemistry; (United States) Vol. 13:6; ISSN ETOCDK; ISSN 0730-7268
Country of Publication:
United States
Language:
English