Download or read book Initial Studies of the Inhalation Toxicity of Beryllium Sulfate Tetrahydrate Dust written by George F. Sprague and published by . This book was released on 1948 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Initial Studies of the Inhalation Toxicity of Beryllium Sulfate and Beryllium Metal Fume written by and published by . This book was released on 1947 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data from 56 animals were collected to supply information relevant to the poisonous effects, including the organs injured and the route of the damage, caused by the inhalation of beryllium sulfate tetrahydrate dust at a concentration approximating 90 mg of the salt per cubic meter of air. Six criteria of toxicity were utilized in evaluating the information obtained from the animals which comprised 2 dogs, 3 rabbits, 10 rats, 14 guinea pigs, 20 mice and 7 hamsters. The animals were exposed 6 hours daily for a two-week period, a total of 66 hours, to a dust of this soluble beryllium salt in a small inhalation exposure chamber. Mortality for all species dying as a result of exposure was 43% of the 56 exposed animals or 20 of 20 mice, 2 of 10 rats, and 2 of 7 hamsters. The mice died from the 3rd to the 11th calendar day with an LD50 being attained on the 7th day following the start of exposure. No deaths occurred among the dogs, rabbits, or guinea pigs. Weight response data showed that all species save the guinea pig were adversely affected. The rabbit lost 5% in weight, whereas the rat and hamster lost 11%. Clinical chemical values indicated renal impairment and some subsequent regeneration in the rabbits. Marked species variation, but unusually good conformity within each species, was thus observed in the response to the inhalation of beryllium sulfate. Rats were exposed by inhalation to beryllium metal fume at an approximate concentration of 800 mg/m3 of air under a variety of exposure schedules to determine the character of the toxic response. It was concluded that beryllium metal fume acts as a primary irritant which, when administered rapidly in high dosage, may be fatal but which is tolerated relatively well as long as no single dose exceeds 12,000 CT units. No cumulative poisonous effects were seen. 14 figs., 3 tabs.
Download or read book Initial Studies of the Inhalation Toxicity of Beryllium Sulfate and Beryllium Metal Fume written by and published by . This book was released on 1947 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Two week Beryllium Sulfate Mist Inhalation Study in Animals at a Concentration of 100 Mg m3 written by G. Sprague and published by . This book was released on 1949 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Beryllium and Beryllium Compounds written by Robert M. Bruce and published by . This book was released on 2001 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this volume are assessed the risks to human health and the environment of Beryllium, found in the earth's crust at an average concentration of approximately 2.8-5.0 mg/kg. Beryllium-containing minerals are processed to beryllium metal, beryllium alloys, and beryllium oxide for use in aerospace, weapons, nuclear and electronics industries. The general population is exposed to beryllium primarily in food and drinking-water, with smaller contributions from air and incidental ingestion of dust. There are no human studies addressing the toxicokinetics of beryllium or beryllium compounds; however, beryllium has been found in the lungs and urine of non-occupationally exposed individuals. There are no reliable data on the oral toxicity of beryllium in humans. The lungs are the primary target of inhalation exposure to beryllium in animals and humans. Short-term or repeated exposures of humans to beryllium or its compounds can result in an acute or chronic form of lung disease. Increases in lung cancer mortality were observed in cohort mortality studies of beryllium processing workers.
Download or read book Toxicological Profile for Beryllium written by and published by . This book was released on 2002 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1949 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Current List of Medical Literature written by and published by . This book was released on 1948 with total page 1104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes section, "Recent book acquisitions" (varies: Recent United States publications) formerly published separately by the U.S. Army Medical Library.
Download or read book Industrial Hygiene Digest written by and published by . This book was released on 1949 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book List written by and published by . This book was released on 1948 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Beryllium Toxicology a Literature Search written by Frances L. Sachs and published by . This book was released on 1953 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Index of Reports and Publications by the University of Rochester Atomic Energy Project written by Henry A. Blair and published by . This book was released on 1961 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: This index is designed to cover the declassified and unclassified work of the University of Rochester Atomic Energy Project from its beginning in 1943 until July 1960. It contains titles of the work described in Manhattan District and Atomic Energy Commission reports as well as of material published in books and journals.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1948 with total page 810 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Beryllium toxicology written by Frances L. Sachs and published by . This book was released on 1953 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Information Pilot written by and published by . This book was released on 1949 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book AECD written by U.S. Atomic Energy Commission and published by . This book was released on with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Toxicology of Beryllium written by Eliot Dole Hutchinson and published by . This book was released on 1960 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
