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PubMed · 7852728

Gowns: selection on a procedure-driven basis.

N L Belkin
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Abstract

The Occupational Safety and Health Administration requires that the types and characteristics of personal protective equipment used "depend upon the task and degree of exposure anticipated." The level of protection required, therefore, is logically contingent upon the operative site, estimated blood loss, and duration of the procedure. However, more recent studies provide data that specifically identify the personnel and areas of the body that are most likely to become contaminated. This adds a new dimension to the procedure-oriented selection process that is worthy of consideration.

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Environmental ExposureHumansInfection ControlNeedlestick InjuriesOccupational ExposureOperating RoomsProtective ClothingUnited StatesUnited States Occupational Safety and Health AdministrationWorkforceComparative StudyJournal ArticleReview

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N L Belkin. 1994. Gowns: selection on a procedure-driven basis.. https://doi.org/10.1086/646843

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PubMed2006

Natural radioactivity intake into wheat grown on fertilized farms in two districts of Pakistan.

The use of phosphate fertilizers on agricultural farms enhances gamma-ray activity concentration in the farms and therefore absorbed dose rates to the public. The most common natural radionuclides in fertilizer and soil are (40)K, (226)Ra and (232)Th. Agricultural farms at four locations in two districts in Pakistan consisting of saline and normal soils had been under fertilizer treatment for the past 30, 20, 10 and 0 y, therefore, natural radioactivity has been measured in soil samples from these sites to investigate the effect of fertilizers in soil and wheat grown in these sites. Radioactivity measured in soil of the sites under investigation was 550-644, 20-35 and 42-58 Bq kg(-1) for (40)K, (226)Ra and (232)Th, respectively. Wheat was grown in the farms and radioactivity transferred from soil to roots, shoots and grains was also measured. Relatively high natural radioactivity has been observed in the fertilized agricultural farms and in the wheat plants grown in these farms. From the total amount of an element uptaken in a plant, distribution of the element in different parts of the plant has been studied. The distribution of potassium was almost uniform in roots, shoots and grains of wheat; that of radium was different in the three parts of wheat; and that of thorium was almost equal in shoots and grains but quite large in the roots. Soils to grain transfer factors of the natural radionuclides have been determined as 3-4 x 10(-2) for (226)Ra, 2-3 x 10(-2) for (232)Th and 17-20 x 10(-2) for (40)K. Annual doses of (40)K and (226)Ra received by intake of grain products have been estimated to lie within range while the dose received from intake of (232)Th is larger than the range specified in UNSCEAR report 2000.

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