Author: Publisher:
ISBN:
Category : Biology
Languages : en
Pages : 16
Book Description
Medicine & Biology
Author: Government Reports Annual Index
Author: Publisher:
ISBN:
Category : Government reports announcements & index
Languages : en
Pages : 1376
Book Description
Document Retrieval Index
Author: Publisher:
ISBN:
Category : Criminal justice, Administration of
Languages : en
Pages : 886
Book Description
Government Reports Announcements & Index
Author: Dimensions
Author: Potential Health Risks to DOD Firing-Range Personnel from Recurrent Lead Exposure
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309267366
Category : Medical
Languages : en
Pages : 199
Book Description
Lead is a ubiquitous metal in the environment, and its adverse effects on human health are well documented. Lead interacts at multiple cellular sites and can alter protein function in part through binding to amino acid sulfhydryl and carboxyl groups on a wide variety of structural and functional proteins. In addition, lead mimics calcium and other divalent cations, and it induces the increased production of cytotoxic reactive oxygen species. Adverse effects associated with lead exposure can be observed in multiple body systems, including the nervous, cardiovascular, renal, hematologic, immunologic, and reproductive systems. Lead exposure is also known to induce adverse developmental effects in utero and in the developing neonate. Lead poses an occupational health hazard, and the Occupational Safety and Health Administration (OSHA) developed a lead standard for general industry that regulates many workplace exposures to this metal. The standard was promulgated in 1978 and encompasses several approaches for reducing exposure to lead, including the establishment of a permissible exposure limit (PEL) of 50 μg/m3 in air (an 8-hour time-weighted average [TWA]), exposure guidelines for instituting medical surveillance, guidelines for removal from and return to work, and other risk-management strategies. An action level of 30 μg/m3 (an 8-hour TWA) for lead was established to trigger medical surveillance in employees exposed above that level for more than 30 days per year. Another provision is that any employee who has a blood lead level (BLL) of 60 μg/dL or higher or three consecutive BLLs averaging 50 μg/dL or higher must be removed from work involving lead exposure. An employee may resume work associated with lead exposure only after two BLLs are lower than 40 μg/dL. Thus, maintaining BLLs lower than 40 μg/dL was judged by OSHA to protect workers from adverse health effects. The OSHA standard also includes a recommendation that BLLs of workers who are planning a pregnancy be under 30μg/dL. In light of knowledge about the hazards posed by occupational lead exposure, the Department of Defense (DOD) asked the National Research Council to evaluate potential health risks from recurrent lead exposure of firing-range personnel. Specifically, DOD asked the National Research Council to determine whether current exposure standards for lead on DOD firing ranges protect its workers adequately.The committee also considered measures of cumulative lead dose. Potential Health Risks to DOD Firing-Range Personnel from Recurrent Lead Exposure will help to inform decisions about setting new air exposure limits for lead on firing ranges, about whether to implement limits for surface contamination, and about how to design lead-surveillance programs for range personnel appropriately.
Indoor Air Quality
Author: Hermann FrommePublisher: Springer Nature
ISBN: 303140078X
Category : Science
Languages : en
Pages : 587
Book Description
This book presents a comprehensive and detailed overview of indoor pollution, covering the main contaminants in the indoor environment – air and dust, the health aspects of exposure, and different possibilities for a risk assessment. The book outlines the chemical substances and physical and biological factors that occur more frequently indoors, which are of health significance, or for which only limited information on their occurrence indoors is available to date. It also provides guidance to identify where problems may arise in the future and where data is missing for a valid exposure and risk assessment as well as for consequent risk management. Written by a highly recognized and experienced medical expert in the field, the book starts with an introduction to the indoor environment, including topics such as indoor environmental quality and health, indoor climate, sampling of indoor pollutants, and measures to improve indoor air quality. The author then delves into the fundamentals of exposure assessment and special exposure indoor situations, followed by in-depth coverage of the health aspects, and indoor air occurrence of several substances such as volatile organic compounds, very volatile organic compounds, semi-volatile organic compounds, and particulate matters and fibers. Particular attention is given to bioaerosols like mold, microbial volatile organic compounds, mycotoxins, and viruses. Readers will also find chapters devoted to the main health aspects and indoor occurrence of inorganic gases, radon and metals, and smoking. The book closes with a chapter on risk assessment, in which readers will learn more about the basics of risk assessment, key points and processes of a health evaluation, and guidance for assessing indoor air contamination. This book is a unique compilation of the current worldwide exposure situation in private and public indoor spaces, and an important reference for researchers that are willing to assess the rising burden of disease and potential causes behind degraded indoor air quality. Scientists, students, and policymakers interested in the fields of medicine and environmental sciences will understand the appeal of this book.
Field Artillery Manual Cannon Gunnery
Author: Department of the ArmyPublisher:
ISBN: 9781975605674
Category :
Languages : en
Pages : 664
Book Description
Training Circular (TC) 3-09.81, "Field Artillery Manual Cannon Gunnery," sets forth the doctrine pertaining to the employment of artillery fires. It explains all aspects of the manual cannon gunnery problem and presents a practical application of the science of ballistics. It includes step-by-step instructions for manually solving the gunnery problem which can be applied within the framework of decisive action or unified land operations. It is applicable to any Army personnel at the battalion or battery responsible to delivered field artillery fires. The principal audience for ATP 3-09.42 is all members of the Profession of Arms. This includes field artillery Soldiers and combined arms chain of command field and company grade officers, middle-grade and senior noncommissioned officers (NCO), and battalion and squadron command groups and staffs. This manual also provides guidance for division and corps leaders and staffs in training for and employment of the BCT in decisive action. This publication may also be used by other Army organizations to assist in their planning for support of battalions. This manual builds on the collective knowledge and experience gained through recent operations, numerous exercises, and the deliberate process of informed reasoning. It is rooted in time-tested principles and fundamentals, while accommodating new technologies and diverse threats to national security.
Publications of the National Institute of Standards and Technology ... Catalog
Author: National Institute of Standards and Technology (U.S.)Publisher:
ISBN:
Category :
Languages : en
Pages : 648
Book Description
Author: