Pneumoconiosis Pneumoconiosis is also known as Black lung. Pneumoconiosis can develop when airborne dusts, are inhaled at work. Exposure to silica, asbestos, and coal dust are the most common causes of pneumoconiosis. Most dust types are not known to cause pneumoconiosis. In 1969 and 1977, regulations for U.S. underground coal mines were mandated by federal legislation and amended. However, in 2005 and 2006, clusters of rapidly progressing and potentially disabling pneumoconiosis were reported in certain geographic areas. CDC’s National Institute for Occupational Safety and Health (NIOSH) responded to the reports by instituting field surveys that were conducted under the Enhanced Coal Workers’ Health Surveillance Program (ECWHSP). The results showed a total of 37 cases of advanced pneumoconiosis. The national chest radiograph program recommends that all miners receive an initial radiograph upon hire, a second radiograph after 3 years, and additional radiog...
I live in Plano, Texas, and we just have two sewage treatment facilities, nice to have three, may be better service
ReplyDeleteI live in the Central Valley and we have 5 facilities. The contrast is interesting since the population is larger in Sacramento.
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