Tritium in the World Trade Center September 11th, 2001 Terrorist Attack: It's Possible Sources and Fate.

Parekh, P. ; Semkow, T. ; Husain, L. ; Haines, D. ; Wozniak, G.

Technical Information Center Oak Ridge Tennessee

关键词: Water pollution monitoring;    Tritium;    Trace elements;    Sources;    Scintillation counting;   

RP-ID  :  DE200515013327

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Traces of tritiated water (HTO) were determined at World Trade Center (WTC) ground zero after the 9/11/01 terrorist attack. A method of ultralow-background liquid scintillation counting was used after distilling HTO from the samples. A water sample from the WTC sewer, collected on 9/13/01, contained 0.174 plus or minus 0.074 (2sigma) nCi/L of HTO. A split water sample, collected on 9/21/01 from the basement of WTC Building 6, contained 3.53 plus or minus 0.17 and 2.83 plus and minus 0.15 nCi/L, respectively. Several water and vegetation samples were analyzed from areas outside the ground zero, located in Manhattan, Brooklyn, Queens, and Kensico Reservoir. No HTO above the background was found in those samples. All these results are well below the levels of concern to human exposure.