Environmental contamination following the Grenfell Tower fire
Environmental contamination following the Grenfell Tower fire
复制标题
DOI：
10.1016/j.chemosphere.2019.03.153
复制
发表时间：
2019-07-01
期刊：
影响因子：
8.8
通讯作者：
Bedford, Clare
中科院分区：
文献类型：
--
作者：
Stec, Anna A.;Dickens, Kathryn;Bedford, Clare
位于伦敦市中心的格伦费尔大厦（Grenfell Tower）火灾发生在一个公寓内，大火吞噬了整个24层楼高的建筑，造成72人死亡，并通过羽流和颗粒沉积物传播有毒污水。火灾发生后1个月和6个月，从距离塔1.2公里的6个地点收集了土壤样本，以及半燃烧的火灾碎片和焦炭样本。此外，在17个月后，从距离塔160米的平坦处收集灰尘样品和冷凝物。对火灾排出物和合成玻璃纤维中常见的潜在有毒成分进行了样本分析，在塔140米范围内采集的样本显示，除其他有毒物质外，多氯二苯并对二恶英的浓度比英国城市参考土壤水平高60倍;苯的水平高40倍; 6种主要多环芳烃的水平高约160倍。多环芳烃的含量大约是火灾前海德公园附近报告的20倍。为了解释这些热原污染物的存在，还收集和分析了焦炭和部分燃烧的碎片。在土壤和废墟中发现了苯、多环芳烃、异氰酸酯和磷阻燃剂。氰化氢和合成玻璃纤维。在附近的颗粒和热原污染非常明显，可能是从火灾废墟、焦炭和灰尘中浸出的。有必要对塔周围区域进行进一步分析，以了解潜在的健康风险。(C)2019作者由爱思唯尔有限公司发布
The Grenfell Tower fire in central London, started within a flat, engulfed the whole 24 storey building in flames, killed 72 people and spread toxic effluent via the plume and particulate deposits.Soil samples from 6 locations up to 1,2 km from the Tower, together with semi-burnt fire debris and char samples, were collected 1 and 6 months after the fire. Additionally, dust samples and condensates were collected from a flat 160 m away from the Tower after 17 months. Samples were analysed for common potentially toxic components of fire effluents and synthetic vitreous fibres.Samples collected within 140 m of the Tower showed, amongst other toxicants, polychlorinated dibenzo-p-dioxin concentrations 60 times greater than UK urban reference soil levels; benzene levels were 40 times greater; levels of 6 key polycyclic aromatic hydrocarbons (PAHs) were approximately 160 times greater. PAHs levels are approximately 20 times greater than those reported from nearby Hyde Park before the fire. To explain the presence of these pyrogenic contaminants char and partially burnt debris were also collected and analysed. Benzene, PAHs, isocyanates and phosphorus flame retardants were found. Hydrogen cyanide and synthetic vitreous fibres were present in both soil and debris.Particulate and pyrogenic contamination in the immediate vicinity is clearly evident, and may have leached out of fire debris, char and dust. Further analysis of the area around the Tower is necessary to understand potential health risks. (C) 2019 The Authors. Published by Elsevier Ltd.