ABSTRACT: A personal dust monitor (PDM) was developed to measure respirable coal mine dust mass to provide accurate exposure data at the end of a work shift. Additionally, the new monitor continuously displays nearreal- time dust exposure data during the shift. The PDM uses a tapered-element oscillating microbalance to measure the mass of dust deposited on a filter and continually displays the cumulative exposure concentration data. The accuracy and precision of the inst...
Conference Overview: Millions of workers in developed and underdeveloped countries are exposed to crystalline silica. Adverse effects associated with exposure to silica dust remains an occupational health issue in many countries around the world. Characterization of silicosis risk at occupational settings with silica dust exposure using improved and standardized methods of exposure assessment is needed. At the same time, the role of silica in the causation of lung cancer...
The roofmonitoring safety system introduced in late 1997.
Introduction: The National Health Interview Survey (NHIS) is a multi-purpose health survey conducted by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention (CDC), and is the principal source of information on the health of the civilian, noninstitutionalized, household population of the United States. The NHIS has been conducted continuously since its beginning in 1957. Data are released on an annual basis. The NHIS Core questionna...
National estimates of the prevalence of selected chronic conditions in the civilian noninstitutionalized population of the United States for the years 1983-85 are presented in this report. These estimates are based on data collected by the National Center for Health Statistics (NCHS) by means of the National Health Interview Survey (NHIS). Data on the prevalence of chronic conditions reported in household interviews are shown in terms of number and rate per 1,000 persons...
Information related to the 1999 BRFSS summary prevalence report of selected risk factors and preventive health measures from the core and modules is attached. This report consists of four parts: An introduction that contains: An overview of the 1999 summary prevalence report. An explanation of the tables for 1999 Behavioral Risk Factor Surveillance System (BRFSS) prevalence data. Definitions of BRFSS risk factors and preventive health measures. When appropriate, Year 200...
Communication with immunization “consumers” can be undertaken by immunization program staff directly but are sometimes more effective when done in collaboration with community leaders, advocacy groups and organizations such as churches, schools, civic clubs, businesses, and other special interest groups. The role and responsibility of medical providers in educating their patients about immunizations must not be overlooked. All communication efforts should address identif...
Table 3-1. Live Births and Birth Rates: Puerto Rico, 1943-99; Virgin Islands, 1940-99; and Guam, 1970-99...
4.1 INTRODUCTION: Technical Basis Documents and Site Profile documents are general working documents that provide guidance concerning the preparation of dose reconstructions at particular sites or categories of sites. They will be revised in the event additional relevant information is obtained about the affected site(s). These documents may be used to assist the National Institute for Occupational Safety and Health in the completion of the individual work required for e...
I.PHYSICAL DATA Radiation: Beta (100% abundance) Energy: Maximum: 248.5 keV; Average: 76.4 keV Half-Life [T½] : Physical T½: 25.3 days [link to web decay calculator]1 Biological T½: Bone 1155 days; Whole Body 257 days2 Effective T½: 25.3 days Specific Activity: 156,000 Ci/g [5,780 TBq/g] max. Beta Range: Air: 50 cm [ 20 inches] Water/Tissue: 0.06 cm [0.024 inches] Plastic: 0.05 cm [0.02 inches]...
Table 2. Tuberculosis Cases and Case Rates per 100,000 Population by Age Group: United States, 1992-2002...
Cholera, India. The local authorities have reported 34 111 cases of diarrhoea (including 33 deaths) since 7 July in 24 districts in Orissa state. The cases were detected through the early warning surveillance system and were related to the floods that occurred at that time. Orissa has a population of 37 million people, of which 8 million were affected by the floods.
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Table 40. (Cont'd) Tuberculosis Cases by Race/Ethnicity: Metropolitan Statistical Areas with 500,000 Population, 2000...
I. Welcome and Introductions (1: 00 – 1: 10) Cristina V. Beato, M.D. Acting Assistant Secretary for Health II. Data Presentation (1: 10 – 1: 25) Edward J. Sondik, Ph.D. Director, National Center for Health Statistics Centers for Disease Control and Prevention III. Program Overview: (1: 25 – 1: 30) Janet L. Collins, Ph.D. Acting Director, National Center for HIV, STD and TB Prevention Centers for Disease Control and Prevention IV. Addressing the Challenges (1: 30 – 2: 00)...
Table 1-24. Live Births by Place of Delivery, and Attendant, According to Race and Hispanic Origin: United States, Selected Years, 1975-99...
We appreciate the opportunity to review and comment on the subject report before it is finalized and published as part of the Centers for Disease Control and Prevention (CDC), Los Alamos Historical Document Retrieval and Assessment (LAHDRA) Project. We understand this is intended as an interim report, but believe it must be current, accurate and technically sound, as it will play an important role shaping public confidence in this project.
4.7 (1.7, 11) - atomic-bomb survivors less than 15 years old at time of exposure, with a mean thyroid dose of gamma rays of 0.27 Gy (Ron et aI., 1995) -- 9.5 (4.1, 19) - atomic-bomb survivors less than 10 years old at time of exposure, with the same mean thyroid dose (Thompson et aI., 1994). These estimates suggest that the risk to children of age less than 10 years at time of exposure is greater than the risk to children of age 10-15 years. For children exposed to X ray...
ABSTRACT: The U.S. Bureau of Mines has established a wire rope research laboratory to examine the factors that affect the life of wire rope. Two Zin-diameter 6x25 fiber core (FC) ropes were degraded on a bending fatigue machine. These were the second and third ropes in a series of tests on this construction and size rope. Tensile and nondestructive tests were performed on samples of the rope Lo determine the relationship between rope deterioration and rope breaking stren...