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« Previous AbstractThe ankyrin repeat-containing protein Akr1p is required for the endocytosis of yeast pheromone receptors    Next AbstractBiomonitoring of Benzene and Effect of Wearing Respirators during an Oil Spill Field Trial at Sea »

Ann Work Expo Health


Title:Oil Spill Field Trial at Sea: Measurements of Benzene Exposure
Author(s):Gjesteland I; Hollund BE; Kirkeleit J; Daling P; Bratveit M;
Address:"Department of Global Public Health and Primary Care, Occupational and Environmental Medicine, University of Bergen, Jonas Lies vei 65, 5021 Bergen, Norway. Department of Occupational Medicine, Haukeland University Hospital, 5021 Bergen, Norway. SINTEF Ocean, Department of Environmental Technology, 7010 Trondheim, Norway"
Journal Title:Ann Work Expo Health
Year:2017
Volume:61
Issue:6
Page Number:692 - 699
DOI: 10.1093/annweh/wxx036
ISSN/ISBN:2398-7316 (Electronic) 2398-7308 (Linking)
Abstract:"OBJECTIVES: Characterize personal exposure to airborne hydrocarbons, particularly carcinogenic benzene, during spill of two different fresh crude oils at sea. METHODS: The study included 22 participants taking part in an <> field trial in the North Sea. Two types of fresh crude oils (light and heavy) were released six times over two consecutive days followed by different oil spill response methods. The participants were distributed on five boats; three open sampling boats (A, B, and C), one release ship (RS), and one oil recovery (OR) vessel. Assumed personal exposure was assessed a priori, assuming high exposure downwind and close to the oil slick (sampling boats), low exposure further downwind (100-200 m) and upwind from the oil slick (main deck of RS and OR vessel), and background exposure indoors (bridge of RS/OR vessel). Continuous measurements of total volatile organic compounds in isobutylene equivalents were performed with photoionization detectors placed in all five boats. Full-shift personal exposure to benzene, toluene, ethylbenzene, xylenes, naphthalene, and n-hexane was measured with passive thermal desorption tubes. RESULTS: Personal measurements of benzene, averaged over the respective sample duration, on Day 1 showed that participants in the sampling boats (A, B, and C) located downwind and close to the oil slick were highest exposed (0.14-0.59 ppm), followed by participants on the RS main deck (0.02-0.10 ppm) and on the bridge (0.004-0.03 ppm). On Day 2, participants in sampling boat A had high benzene exposure (0.87-1.52 ppm) compared to participants in sampling boat B (0.01-0.02 ppm), on the ships (0.06-0.10 ppm), and on the bridge (0.004-0.01 ppm). Overall, the participants in the sampling boats had the highest exposure to all of the compounds measured. The light crude oil yielded a five times higher concentration of total volatile organic compounds in air in the sampling boats (max 510 ppm) than the heavy crude oil (max 100 ppm) but rapidly declined to <20 ppm within 24 min after release of oil, indicating short periods of exposure. CONCLUSIONS: The personal exposure to benzene downwind and close to the oil slick during spills of light crude oil was relatively high, with concentration levels approaching the occupational exposure limits for several participants. For bulk spill scenarios like in this study, cleanup should not be initiated the first 30-60 min to allow for evaporation, while appropriate personal protective equipment should be used in continuous spills when working downwind and close to the oil slick"
Keywords:"Air Pollutants, Occupational/*analysis Benzene/*analysis Carcinogens, Environmental/*analysis Environmental Monitoring/*methods Humans Hydrocarbons/analysis North Sea Occupational Exposure/*analysis Petroleum Petroleum Pollution/*analysis Ships Volatile O;"
Notes:"MedlineGjesteland, Ingrid Hollund, Bjorg Eli Kirkeleit, Jorunn Daling, Per Bratveit, Magne eng England 2017/06/09 Ann Work Expo Health. 2017 Jul 1; 61(6):692-699. doi: 10.1093/annweh/wxx036"

 
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