Hydrocarbons and microbial activities in sediment of an arctic lake one year after contamination with leaded gasoline. Arctic 31:180–191

• Main Authors: Amikam Horowitz, Alan Sexstone, Ronald M. Atlas
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Published: 1978
• Subjects: Arctic; Arctic Lake; Canada; Arctique*
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.585.7359; http://pubs.aina.ucalgary.ca/arctic/Arctic31-3-180.pdf

ABSTRACT. Hydrocarbons were found to persist in the sediment of an Arctic lake one year after the lake was accidentally contaminated with leaded gasoline. The contaminating gasoline was continuing to spread from the original site of contamination. High numbers of hydrocarbon utilizing microorganisms were found in the contaminated sediment. Rates of nitrogen fixation did not appear to be affected by hydrocarbon contamination, but potential denitrification activities appeared to be altered by the gasoline. Fertilizer application resulted in a moderate decrease of hydrocarbon concentrations in the sediment. RkXJMfi. On a constate que des hydrocarbures persistaient dans les sediments d’un lac arctique, un an aprks que le lac etait pollue accidentellement par de l’essence au plomb (tetratthyle). De l’essence polluante continuait a se repandre a partir du site originel de pollution. Dans les sediments contamines, on trouvait des micro-organismes utilisant toutes sortes d’hydrocarbure. La contamination par les hydrocarbures ne paraissait pas affecter les taux de fixation de I’azote mais I’essence semblait alterer les activites potentielles de denitrification. A un tpendage d’engrais, resultait une decroissance moderte de la concentration d’hydrocarbures dans le sediment. Traduit par Alain de Vendigies, Aquitaine Co. of Canada Ltd.