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Author: National Academies of Sciences, Engineering, and Medicine Publisher: National Academies Press ISBN: 030949382X Category : Medical Languages : en Pages : 291
Book Description
Legionnaires' disease, a pneumonia caused by the Legionella bacterium, is the leading cause of reported waterborne disease outbreaks in the United States. Legionella occur naturally in water from many different environmental sources, but grow rapidly in the warm, stagnant conditions that can be found in engineered water systems such as cooling towers, building plumbing, and hot tubs. Humans are primarily exposed to Legionella through inhalation of contaminated aerosols into the respiratory system. Legionnaires' disease can be fatal, with between 3 and 33 percent of Legionella infections leading to death, and studies show the incidence of Legionnaires' disease in the United States increased five-fold from 2000 to 2017. Management of Legionella in Water Systems reviews the state of science on Legionella contamination of water systems, specifically the ecology and diagnosis. This report explores the process of transmission via water systems, quantification, prevention and control, and policy and training issues that affect the incidence of Legionnaires' disease. It also analyzes existing knowledge gaps and recommends research priorities moving forward.
Author: National Academies of Sciences, Engineering, and Medicine Publisher: National Academies Press ISBN: 030949382X Category : Medical Languages : en Pages : 291
Book Description
Legionnaires' disease, a pneumonia caused by the Legionella bacterium, is the leading cause of reported waterborne disease outbreaks in the United States. Legionella occur naturally in water from many different environmental sources, but grow rapidly in the warm, stagnant conditions that can be found in engineered water systems such as cooling towers, building plumbing, and hot tubs. Humans are primarily exposed to Legionella through inhalation of contaminated aerosols into the respiratory system. Legionnaires' disease can be fatal, with between 3 and 33 percent of Legionella infections leading to death, and studies show the incidence of Legionnaires' disease in the United States increased five-fold from 2000 to 2017. Management of Legionella in Water Systems reviews the state of science on Legionella contamination of water systems, specifically the ecology and diagnosis. This report explores the process of transmission via water systems, quantification, prevention and control, and policy and training issues that affect the incidence of Legionnaires' disease. It also analyzes existing knowledge gaps and recommends research priorities moving forward.
Author: National Research Council Publisher: National Academies Press ISBN: 0309172209 Category : Nature Languages : en Pages : 161
Book Description
The safety of the nation's drinking water must be maintained to ensure the health of the public. The U.S. Environmental Protection Agency (EPA) is responsible for regulating the levels of substances in the drinking water supply. Copper can leach into drinking water from the pipes in the distribution system, and the allowable levels are regulated by the EPA. The regulation of copper, however, is complicated by the fact that it is both necessary to the normal functioning of the body and toxic to the body at too high a level. The National Research Council was requested to form a committee to review the scientific validity of the EPA's maximum contaminant level goal for copper in drinking water. Copper in Drinking Water outlines the findings of the committee's review. The book provides a review of the toxicity of copper as well as a discussion of the essential nature of this metal. The risks posed by both short-term and long-term exposure to copper are characterized, and the implications for public health are discussed. This book is a valuable reference for individuals involved in the regulation of water supplies and individuals interested in issues surrounding this metal.
Author: Yiduo Wen Publisher: Brightcity Books ISBN: 9780979589843 Category : Languages : en Pages : 0
Book Description
Poetry. Asian & Asian American Studies. Translated from the Chinese by Robert Hammond Dorsett, MD. Foreword by Christopher Merrill. Calligraphy by Huang Xiang. The temptation, when evaluating a poet gunned down by his government, is to start there, with the politics that led to his murder. But Wen Yiduo (1899-1946) was much too complex and heterodox to comfortably wear the martyr's robe, his works too nuanced and unsettled to be a paragon of any revolution. His poems explore religion and rickshaws, contain the chrysanthemums of Chinese folklore and the mud of contemporary times, and dare readers to challenge prevailing conceptions, even to render their own cynicism as hope. Mao blamed the Nationalists for Wen's death, thus elevating him to something like mythic status, yet the poet needed no such validation. He resisted easy classification. He was a writer whose ballast was in ideas and logic, while remaining fresh to the point of innovation. In Dorsett's interpretation, we revel in the details of Wen's work: lyric, ironic, passionate, and above all, politically aware but ideologically free. It represents a long overdue attempt to bring international attention to one of China's preeminent 20th- century writers.
Author: David M. Nielsen Publisher: CRC Press ISBN: 1420042793 Category : Science Languages : en Pages : 326
Book Description
Tremendous improvements in ground-water sampling methodologies and analytical technologies have made it possible to collect and analyze truly representative samples to detect increasingly lower levels of contaminants-now in the sub-parts-per-billion range. Though these new methods produce more accurate and precise data and are less expensive, many
Author: National Academies of Sciences, Engineering, and Medicine
Author: National Academies of Sciences, Engineering, and Medicine
Author: Eleanor Chai
Author: National Research Council
Author: Yiduo Wen
Author: David Nielsen
Author: Jacob Blanc
Author: A. Gene Collins
Author: Isaac Newton
Author: Charles N. Haas
Author: David M. Nielsen