silicosis screening in surface coal miners

silicosis screening in surface coal miners

Preventing Silicosis and Deaths in Rock Drillers (92-107 ...

Surface coal mines Surface coal mine operators must comply with the MSHA permissible exposure limit (PEL) of 2.0 milligrams of respirable coal mine dust per cubic meter of air (2mg/m3). However, when the respirable quartz (crystalline silica) content of the dust is greater than 5%, the PEL is reduced as follows [ 30 CFR ** 71.101]:

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NIOSHTIC-2 Publications Search - 20036366 - Controlling ...

In particular, some of the most severe cases of silicosis have been observed in surface mine rock drillers [NIOSH 1992]. A voluntary surface coal miner lung screening study conducted in Pennsylvania in 1996 found that silicosis was directly related to age and years of drilling experience [CDC 2000].

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Prevalence Of Silicosis Studied In Surface Coal Miners ...

May 26, 1998  The research titled, "Screening for Silicosis in Surface Coal Miners," was presented in April at the 1998 International Conference of the American Thoracic Society and the American Lung ...

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(PDF) Silicosis in surface coal mine drillers

However, prior research had identified increased risk for silicosis in surface coal miners, particularly drillers [40, 41]. Using the CWHSP mobile unit, NIOSH conducted targeted outreach during ...

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Respirable coal mine dust at surface mines, United States ...

Silicosis screening in surface coal miners--Pennsylvania, 1996–1997. MMWR Morb Mortal Wkly Rep. 2000; 49:612–615. [Google Scholar] 24. Joy GJ. Evaluation of the approach to respirable quartz exposure control in U.S. coal mines. J Occup Environ Hyg. 2012; 9:65–68. ...

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Silicosis - UpToDate

May 12, 2020  Silicosis screening in surface coal miners--Pennsylvania, 1996-1997. MMWR Morb Mortal Wkly Rep 2000; 49:612. Request for Assistance in Preventing Silicosis

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New study shows black lung and silicosis among U.S ...

Jun 19, 2012  The combined numbers for Illinois and Indiana are an estimated 5,116 workers in underground coal mines, and 4,048 in strip coal mines. The number of surface coal miners

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Silicosis and Coal Workers’ Pneumoconiosis Radiology Key

Jul 21, 2019  The prevalence of silicosis in coal miners can be reliably determined only in autopsy studies. In the National Coal Workers’ Autopsy Study from 1972 to 1996, pathologic evaluations of 4115 autopsy cases found 23% of coal miners with pulmonary silicosis and 58% with lymph node silicosis.

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Respiratory surveillance for coal mine dust and artificial ...

Oct 13, 2020  INTRODUCTION. The recent reappearance of coal workers' pneumoconiosis (CWP) 1, 2 and emergence of artificial stone (AS)-associated silicosis 3-5 has represented a failure of preventive systems to protect the respiratory health of workers in Australia. This resurgence of pneumoconiosis has occurred at a time when production has increased, mining techniques have been further mechanized

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NIOSHTIC-2 Publications Search - 20043680 - The Western ...

The Western Pennsylvania Silicosis Screening Project was conducted at five sites during May and June 1996 to estimate the proportion of silicosis- like abnormalities (SLA) in surface miners in the bituminous coal fields of Western Pennsylvania. Four organizations collaborated to plan, implement, and draw conclusions from this screening project.

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Silicosis/Coal Workers’ Pneumoconiosis - Pulmonology Advisor

What every physician needs to know: Coal workers’ pneumoconiosis (CWP) and silicosis are preventable occupational lung diseases that are typically associated with significant dust exposure. Although these diseases are two separate entities, they may occur concomitantly, especially in coal miners. Despite mandated dust controls, silicosis and coal workers’ pneumoconiosis remain

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Silicosis Prevention: Silica in the Repair Environment ...

Oct 28, 2013  Studies in the mid-1900’s showed high rates of silicosis among miners, specifically among lead and zinc miners in Oklahoma, Kansas and Missouri, where rocks and ores can consist of more than 95% silica. One study showed more than half of the 700 miners sampled had silicosis.

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Coal Mine Dust Exposures and Associated Health Outcomes

concerning health effects associated with coal mining: 1. Exposure to coal mine dust causes various pulmonary diseases, including coal workers’ pneumoconiosis (CWP) and chronic obstructive pulmonary disease (COPD). 2. Coal miners are also exposed to crystalline silica dust, which causes silicosis, COPD, and other diseases. 3.

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Coalworker's pneumoconiosis - Wikipedia

Coal workers' pneumoconiosis (CWP), also known as black lung disease or black lung, is caused by long-term exposure to coal dust.It is common in coal miners and others who work with coal. It is similar to both silicosis from inhaling silica dust and asbestosis from inhaling asbestos dust. Inhaled coal dust progressively builds up in the lungs and leads to inflammation, fibrosis, and in worse ...

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6 Medical Screening And Surveillance

6.2.3 Recommendations for Surface Coal Miners NIOSH also recommends inclusion of surface coal miners in the medical screening and surveil- lance program based on the evidence (see Chapters 4 and 7) that these miners can develop simple CWP, PMF, silicosis, and decrements in lung function as a result of their exposures to respirable

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Evidence for silica exposure contributing to ...

• Evidence of silicosis among working coal miners • Discussion . Coal Workers’ Health ... quartz in surface mines by year, 1982 -2017. ... Screen working miners for pneumoconiosis “The first priority and concern of all in the coal mining industry must be the

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MSHA NEEDS TO IMPROVE EFFORTS TO PROTECT COAL

Nov 12, 2020  In addition, the data did not include surface coal miners. In 2020, surface mines accounted for at least 48 percent of all active coal mines in the U.S. 6 Therefore, due to low participation in the CWHSP health screening, the trends shown in Figure 1 below may not be representative of the coal mine work force as a whole and the total number of ...

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[Silicosis of underground coal miners] - Abstract - Europe PMC

Silicosis screening in surface coal miners--Pennsylvania, 1996-1997. Centers for Disease Control and Prevention (CDC) MMWR Morb Mortal Wkly Rep, 49(27):612-615, 01 Jul 2000 Cited by: 4 articles

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SILICA DUST CONTROLS FOR SURFACE MINES

CONTROLS FOR SURFACE MINES . By John A. Organiscak. NORMAL SILICOSIS. 2004-2008 MSHA Dust Samples. Mining Commodity % of Dust Samples Exceeding the Standard Due to Quartz. Coal. 11 %. Metal. 21 %. Nonmetal. 18 %. Stone. 13 %. Sand Gravel. 12 % ***Equipment operators most frequently exceed the standard.

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Assessment of pneumoconiosis in surface coal miners after ...

Silicosis screening in surface coal miners—Pennsylvania, 1996‐1997. Jan 2000; 612; Centers for Disease Control and Prevention; Pneumoconiosis prevalence among working coal miners examined in ...

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Silicosis and Coal Workers' Pneumoconiosis Imaging ...

Aug 03, 2020  Coal Workers’ X-ray Surveillance Program. Under the Coal Workers' X-ray Surveiallance Program, coal miners or contractors working for either underground or surface mines can receive a free chest x-ray, lung function test (spirometry), symptom assessment, and a health assessment questionnaire from The National Institute for Occupational Safety and Health (NIOSH) [] .

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1 Recommendations For A Coal Mine Dust Standard

1.1 .I Miner or Coal Miner UMiner" or "coal miner" refers to any individual working in a surface or underground coal mine (including any worker employed by a contractor) who is (1) engaged in the extraction and production process, or (2) regularly exposed to mine hazards, or (3) employed as a construction, maintenance, or service worker.

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Silicosis and Coal Worker’s Pneumoconiosis Clinical Gate

Jun 01, 2015  However, exposure to coal dust with a quartz concentration greater than 15% is associated with a high risk for development of a rapidly progressive form of pneumoconiosis that has the characteristics of silicosis. In open mines, dust levels rarely approach those of underground mines. The most common form of crystalline silica is quartz.

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Silicosis Prevention: Silica in the Repair Environment ...

Oct 28, 2013  Studies in the mid-1900’s showed high rates of silicosis among miners, specifically among lead and zinc miners in Oklahoma, Kansas and Missouri, where rocks and ores can consist of more than 95% silica. One study showed more than half of the 700 miners sampled had silicosis.

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Mine dust lung diseases Business Queensland

Jun 04, 2021  A quality respiratory screening program is in place for Queensland’s underground and surface coal miners under the Coal Mine Workers’ Health Scheme. Free respiratory health screening has been available to retired mine and quarry workers since March 2019.

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Lung Pathology in U.S. Coal Workers with Rapidly ...

Of the 19 miners who met the criteria for RPP, 17 were from West Virginia, 1 was from Pennsylvania, and 1 was from Kentucky. The longest-held jobs were in underground coal mining for 17, including 12 who operated continuous mining machines and 5 who operated roof bolters. The remaining two were surface miners.

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Current Review of Pneumoconiosis Among US Coal Miners ...

Sep 06, 2019  Surface miners comprise approximately half of the US coal mining workforce. Prior to 2014, they were not entitled to participate in the CWHSP. However, prior research had identified increased risk for silicosis in surface coal miners, particularly drillers [40, 41]. Using the CWHSP mobile unit, NIOSH conducted targeted outreach during 2010 and ...

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Prevalence of silicosis at death in underground coal miners

Because of recent concerns for silicosis among strip coal miners, the radiographs were reinterpreted and the data re-evaluated. In addition, data from respirable coal mine dust samples collected from 1972 to 1979 in all surface coal mines were analyzed.

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Pathological study of the prevalence of silicosis among ...

Feb 01, 2014  There are two basic types of coal mining operations, surface mining and underground mining, producing distinctively different exposure variables and disease entities. Underground coal miners are at greater risk of developing silicosis than strip or surface miners because of the higher dust levels in the underground environment.

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Respiratory Diseases Caused by Coal Mine Dust

In 1983, a sentinel case of acute silicosis was reported in a surface coal mine driller. 28 The case report included reanalysis of surveillance conducted in US surface coal miners in the early 1970s showing that drill crew workers were at significantly increased risk for pneumoconiosis relative to other surface coal miners. Medical examinations ...

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Respiratory Protection for Surface Miners - HSI

Silicosis can cause a buildup of scar tissue and fluid in the lungs, resulting in slow suffocation. AIRBORNE CONTAMINANTS AT SURFACE MINES. In addition to silica, airborne contaminants at surface mining sites include coal dust, diesel particulate matter, and radioactive particles like uranium, thorium and radium.

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U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES Health ...

Silicosis: Surface coal miners are at risk for this disease, which is marked by the formation of lumps (nodules) and fibrous scar tissue in the lungs as a result of inhaled silica particles found in quartz in rocks, sand, and similar substances.

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Dust Control In Mining Industry And Some Aspects Of Silicosis

May 23, 2021  In coal mining, overexposure to respirable coal mine dust can lead to coal workers' pneumoconiosis (CWP). CWP is a lung disease that can be disabling and fatal in its most severe form. In addition, miners can be exposed to high levels of respirable silica dust, which can cause silicosis, another disabling and/or fatal lung disease.

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Respiratory surveillance for coal mine dust and artificial ...

health outcomes for workers in the coal mining, AS and other dust-exposed and mining industries. Key words: coal mine dust lung disease, pneumoconiosis, prevention, respiratory surveillance, silicosis. INTRODUCTION The recent reappearance of coal workers’ pneumoconi-osis (CWP)1,2 and emergence of artificial stone (AS)-

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Silicosis in the British coalfields - ScienceDirect

And in cases of silicosis in miners, lung sections under polarized light show large numbers of scricite needles (figs. 2 and 3 in plate-II). .o96 TUBERCLE PLATE I. April i938 April I938 TUBERCLE PLATE I 297 Fig. L Uncla.~sifiable body found in a fibrosed area in a coal-miner's lung. "I'l~e body was 240 microns in length. Transmitted light, x ...

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Can silicosis be South African Mining Industry Best ...

In 2003, the mining sector committed itself to eliminating silicosis at the Mining Summit, which was convened in terms of the Mine Health and Safety Act of 1996. While there have been many individual initiatives to pre-vent silicosis, these must become widespread and on-going if

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Best practices for dust control in coal mining

In coal mining, overexposure to respirable coal mine dust can lead to coal workers' pneumoconiosis (CWP). CWP is a lung disease that can be disabling and fatal in its most severe form. In addition, miners can be exposed to high levels of respirable silica dust, which can cause silicosis, another disabling and/or fatal lung disease.

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Advanced Pneumoconiosis Among Working Underground

levels that might result in silicosis. Twenty-six miners (more likely at risk for silicosis) included 25 who had worked as roofbolters and one who had not been a roofbolter but had worked for 8 years as a driller at a surface coal mine; both jobs are historically associated with exposure to higher levels of silica dust.

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A Coal Miner’s Health – Appalachian Voices

Dec 06, 2010  The most common surface mining risks include falling from highwalls, electrocution and crushing injuries from heavy machinery or large rocks. Additionally, a report by NIOSH shows that during a special screening between 1996-97, 6.7% of surface miners were diagnosed with silicosis, a potentially fatal lung disease caused by exposure to silica dust.

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Best Practices for Dust Control in Metal/Nonmetal Mining

information was available for 881 deaths. Metal/nonmetal mining was the industry recorded for over 15% of these 881 deaths, with mining machine operator the most frequently recorded occupation. In light of ongoing silica overexposures and reported silicosis deaths in metal/nonmetal miners, an ongoing threat to miners’ health is evident.

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Frequent Detection of Latent Tuberculosis Infection among ...

Dec 02, 2013  b Note: The numbers for hard coal mining apply to both underground and surface mining. In general, underground hard coal miners are concerned. In general, underground hard coal miners are concerned. The increase of recognized silicosis cases in 2009 is due to a change in the guideline for the diagnosis and expert opinion of minimal ...

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Debilitating Lung Disease Among Surface Coal Miners With ...

The Federal Coal Mine Health and Safety Act of 1969 (Coal Act) established the federal permissible exposure limit (PEL) of 2.0 mg/m 3 for respirable coal mine dust in underground and surface coal mines and mandated regular inspections of surface and underground mines, in an effort to prevent coal workers’ pneumoconiosis.

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