Oil/Dispersant Weathering Study – Natural vs. Artificial Seawater, Fall 2012

This data was collected during a 28 day laboratory shaker flask weathering study conducted in the Response and Chemical Assessment Team (RCAT) Laboratory on the LSU Baton Rouge Campus in the Department of Environmental Sciences during the fall of 2012. 40% evaporatively (by mass) weathered Deepwater Horizon reference oil (MC252 collected through a riser vent pipe from the damaged wellhead of Deepwater Horizon drilling rig in the Gulf of Mexico on May 20, 2010) as well as with dispersant (DoR 1:20, Corexit 9500A, Batch # SC0E 2290, donated by NALCO) and without dispersant was placed into shaker flasks and filled with both natural seawater (containing the natural consortia of microorganisms associated with the Northern Gulf of Mexico) and artificial seawater (Instant Ocean mixed with sterilized filtered water) to determine the difference in the weathering profiles of specific crude oil compounds in a well-mixed, controlled environment. This data is used in the publication Olson, G.M.; Gao, H.; Meyer, B.M.; Miles, M.S.; Overton, E.B. (2017). Effect of Corexit 9500A on Mississippi Canyon crude oil weathering patterns using artificial and natural seawater. Heliyon, 3, 3, e00269. doi:10.1016/j.heliyon.2017.e00269.

本数据集采集自2012年秋季，于路易斯安那州立大学（Louisiana State University, LSU）巴吞鲁日校区环境科学系响应与化学评估团队（Response and Chemical Assessment Team, RCAT）实验室开展的为期28天的实验室摇瓶风化研究。实验采用按质量计经蒸发风化40%的深水地平线（Deepwater Horizon）参考原油（MC252，于2010年5月20日从墨西哥湾深水地平线钻井平台受损井口的隔水管通风管道中采集所得），将分别添加分散剂（配比DoR 1:20，Corexit 9500A，批次号SC0E 2290，由NALCO公司捐赠）与不添加分散剂的该原油置于摇瓶中，分别加入天然海水（携带有北墨西哥湾本土微生物群落）与人工海水（由Instant Ocean品牌海盐与灭菌过滤水配制而成），以探究均匀混合的受控环境中特定原油化合物的风化特征差异。本数据集已用于发表论文：Olson, G.M.; Gao, H.; Meyer, B.M.; Miles, M.S.; Overton, E.B. (2017). 《Corexit 9500A对密西西比峡谷原油风化模式的影响：基于人工与天然海水的研究》，Heliyon，3卷3期，e00269，DOI: 10.1016/j.heliyon.2017.e00269.