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008230928e198903uuabcd    ob   f000 0 eng d
040 |aCaOODSP|beng|erda|cCaOODSP
043 |an-cn-ab
0861 |aDR52-6/16-1989E-PDF
1001 |aYee, Eugene, |d1958- |eauthor.
24513|aAn upper bound on the threshold crossing probability for short-time exposure dosage with implications for the assessment of hazard from toxic vapors (U) / |cby E. Yee.
24633|aOn concentration fluctuations and their impact on the assessment of public health risks associated with the cava trials
264 1|aRalston, Alberta : |bDefence Research Establishment Suffield, |cMarch 1989.
300 |a1 online resource (17, 2, [12] pages) : |bcharts
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aSuffield memorandum ; |vno. 1260
500 |a"PCN 051 SP"--title page.
500 |aDigitized edition from print [produced by Defence Research and Development Canada].
504 |aIncludes bibliographical references (page 17).
5203 |a"An upper bound on the threshold crossing probability of the random dosage field produced by the instantaneous or short-term release of a passive scalar (contaminant) into the turbulent atmospheric boundary layer is obtained. This bound is constructed by developing a model for the nonstationary stochastic process representing the fluctuations in the concentration of the contaminant as observed at some fixed receptor downwind of the source (i.e., the point of release of the scalar). The implications of this bound for the evaluation of the hazard posed by the release of toxic substances into the atmosphere is discussed. Here, it is emphasized that the neglect of fluctuations in the dosage can lead to a significant underestimation of the risk of exposure to the toxic substance. Furthermore, it is speculated that the nature as well as the magnitude of the concentration fluctuations will have considerable impact on the protection levels that are provided by the current individual and collective protection equipment such as mask cannisters of filters and protective suits"--abstract.
650 0|aChemical agents (Munitions)|xMathematical models.
650 0|aBiological weapons|xMathematical models.
650 6|aAgents chimiques (Munitions)|xModèles mathématiques.
650 6|aArmes biologiques|xModèles mathématiques.
7102 |aDefence Research Establishment Suffield, |eissuing body.
7101 |aCanada. |bDepartment of National Defence, |eissuing body.
830#0|aSuffield memorandum ;|vno. 1260.|w(CaOODSP)9.870467
85640|qPDF|s2.40 MB|uhttps://publications.gc.ca/collections/collection_2023/rddc-drdc/DR52-6-16-1989-eng.pdf
986 |aSM 1260 ;
986 |aDRES-M-1260