Application of fluorescence and PARAFAC to assess vertical distribution of subsurface hydrocarbons and dispersant during the Deepwater Horizon oil spill
Application of fluorescence and PARAFAC to assess vertical distribution of subsurface hydrocarbons and dispersant during the Deepwater Horizon oil spill
复制标题
DOI：
10.1039/c3em30816b
复制
发表时间：
2013-01-01
影响因子：
5.5
通讯作者：
Zika, Rod G.
中科院分区：
文献类型：
--
作者：
Mendoza, Wilson G.;Riemer, Daniel D.;Zika, Rod G.
我们评估了使用激发和发射矩阵（EEM）荧光和平行因子分析（PARAFAC）建模技术监测原油组分的水柱。七个派生PARAFAC负荷与马孔多原油组分。其他三种组分与分散剂、未溶解组分和有色溶解有机物（CDOM）有关。原油中苯和萘类化合物的荧光在1200 m附近出现最大值。与分散剂缔合的组分的最大荧光（即，在同一深度观察到CoreplasticEC9500A）。在这个深度观察到的羽流是由于深水地平线石油泄漏的分散原油。结果表明，EEM和PARAFAC的应用程序，同时监测选定的PAH，分散剂含有和腐殖类荧光成分在墨西哥湾的石油泄漏区域。
We evaluated the use of excitation and emission matrix (EEM) fluorescence and parallel factorial analysis (PARAFAC) modeling techniques for monitoring crude oil components in the water column. Four of the seven derived PARAFAC loadings were associated with the Macondo crude oil components. The other three components were associated with the dispersant, an unresolved component and colored dissolved organic matter (CDOM). The fluorescence of the associated benzene and naphthalene-like components of crude oil exhibited a maximum at similar to 1200 m. The maximum fluorescence of the component associated with the dispersant (i.e., Corexit EC9500A) was observed at the same depth. The plume observed at this depth was attributed to the dispersed crude oil from the Deepwater Horizon oil spill. Results demonstrate the application of EEM and PARAFAC to simultaneously monitor selected PAH, dispersant-containing and humic-like fluorescence components in the oil spill region in the Gulf of Mexico.