Aerostat Sampling of PCDD/PCDF Emissions from the Gulf Oil Spill In Situ Burns
Aerostat Sampling of PCDD/PCDF Emissions from the Gulf Oil Spill In Situ Burns
复制标题
DOI：
10.1021/es103554y
复制
发表时间：
2010-12-15
影响因子：
11.4
通讯作者：
Gullett, Brian K.
中科院分区：
文献类型：
--
作者：
Aurell, Johanna;Gullett, Brian K.
对墨西哥湾深水地平线钻井平台灾难性故障后石油现场燃烧排放的多氯二苯并二恶英和多氯二苯并呋喃进行了取样。在为期四天的时间里，通过系留浮空器将一个电池供电的仪器包放入27个地面石油火灾的羽流中，以确定多氯二苯并对二恶英/多氯二苯并呋喃的排放量并确定其特征。通过碳平衡法测定，单一复合样品的排放系数为每燃烧千克碳2.0纳克毒性当量，或每燃烧千克油1.7纳克毒性当量。碳被测量为CO2加上颗粒物，后者的排放系数为0.088千克/千克燃烧的碳。在距火场约200-300米、海拔约75-200米处，平均烟羽浓度为
Emissions from the in situ burning of oil in the Gulf of Mexico after the catastrophic failure of the Deepwater Horizon drilling platform were sampled for polychlorinated dibenzodioxins and polychlorinated dibenzofurans (PCDD/PCDF). A battery-operated instrument package was lofted into the plumes of 27 surface oil fires over a period of four days via a tethered aerostat to determine and characterize emissions of PCDD/PCDF. A single composite sample resulted in an emission factor of 2.0 ng toxic equivalency (TEQ) per kg of carbon burned, or 1.7 ng TEO per kg of oil burned, determined by a carbon balance method. Carbon was measured as CO2 plus particulate matter, the latter of which has an emission factor of 0.088 kg/kg carbon burned. The average plume concentration approximately 200-300 m from the fire and about 75-200 m above sea level was