Overview

To learn about epidemiology by studying an occupational hazard, a disease associated with the hazard, and the methods for preventing the disease. Epidemiology is the study of why and how a disease occurs and spreads in populations. The purpose of epidemiology is to prevent and control disease by identifying its causes and the methods for control. Occupational epidemiology is the study of disease or injury related to work activities and the worksite. Congress passed the Occupational Safety and Health Act in 1970 to assure every working man and woman in the United States a safe and healthful workplace. Although we have made progress since that time, serious problems still occur and result in illness, injury, disability, and death. Preventing these tragedies requires the cooperation and effort of everyone concerned. More than 2 million U.S. workers are potentially exposed to dusts containing crystalline silica. Prolonged inhalation of silica-containing dusts puts these workers at risk for the disease silicosis-a nodular fibrosis of the lungs that causes shortness of breath. More than 100,000 U.S. workers are in high-risk occupations such as sandblasting. Most sandblasters work in construction and shipbuilding. Workers may be exposed to crystalline silica in many other industries, including surface and underground mining, pottery, drywall hanging, glassmaking, foundry work, quarry work, work with sandblasting materials, agriculture, and automotive repair. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

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