scholarly journals Respiratory Impairment and Personal Respirable Dust Exposure among the Underground and Open Cast Gold Miners in Tanzania

2018 ◽  
Vol 84 (3) ◽  
pp. 419-428 ◽  
Author(s):  
Matilda Rusibamayila ◽  
Eugene Meshi ◽  
Simon Mamuya
Keyword(s):  
Respirable Dust ◽  
Dust Exposure ◽  
Respiratory Impairment ◽  
Gold Miners ◽  
Open Cast

scholarly journals Respirable dust exposure in underground gold miners at Obuasi in Ghana

2006 ◽  
Vol 26 (1) ◽  
Author(s):  
FY Bio ◽  
S Sadhra ◽  
C Jackson ◽  
PS Burge
Keyword(s):  
Respirable Dust ◽  
Dust Exposure ◽  
Gold Miners

Combined effect of coal dust exposure and smoking on the prevalence of respiratory impairment among coal miners of West Bengal, India

2019 ◽  
Vol 74 (6) ◽  
pp. 350-357 ◽  
Author(s):  
Shilpi Kumari Prasad ◽  
Siddhartha Singh ◽  
Ananya Bose ◽  
Bimlesh Prasad ◽  
Oly Banerjee ◽  
...  
Keyword(s):  
West Bengal ◽  
Coal Dust ◽  
Combined Effect ◽  
Dust Exposure ◽  
Coal Miners ◽  
Respiratory Impairment

Silicosis in rhinestone-manufacturing workers in South China

2019 ◽  
Vol 69 (7) ◽  
pp. 475-481 ◽  
Author(s):  
C Wen ◽  
X Wen ◽  
R Li ◽  
S Su ◽  
H Xu
Keyword(s):  
South China ◽  
Dust Control ◽  
Control Measures ◽  
Respirable Dust ◽  
Dust Exposure ◽  
Quartz Content ◽  
Total Dust ◽  
Silica Dust ◽  
Exposure Limit ◽  
And Control

Abstract Background Silicosis is caused by long-term exposure to silica dust. Crystal rhinestone workers can be exposed to high levels of silica dust and are at risk of silicosis. Aims To explore silicosis cases, silica dust exposure and control measures in a rhinestone factory in South China. Methods We extracted and analysed data on new silicosis cases reported to China’s occupational disease and occupational health information monitoring system between 2006 and 2012 from a rhinestone factory in South China. We measured the quartz content of bulk dust, static total and respirable dust samples. Results Ninety-eight silicosis cases were reported between 2006 and 2012. The mean duration of silica dust exposure was 9.2 years (range 3–16). Drilling and polishing workers accounted for 96 (98%) of cases. We collected 1479 static samples including 690 total dust and 789 respirable dust samples. Mean dust levels for drilling were 1.01 mg/m3 (range 0.20–3.80) for total dust and 0.51 mg/m3 (range 0.04–1.70) for respirable dust. Mean dust levels for polishing were 0.59 mg/m3 (range 0.20–2.10) for total dust and 0.28 mg/m3 (range 0.08–0.71) for respirable dust. Over a third [289/789 (37%)] of total dust samples and 129/690 (19%) respirable dust samples exceeded the national permissible exposure limit. Conclusion Exposure to silica dust, ineffective dust control measures and inefficient health surveillance may have contributed to the incidence of silicosis in the factory we studied. Identification of silica dust exposure and effective dust control measures would reduce the risk of silicosis in rhinestone workers.

Secondary spontaneous pneumothorax in rapidly progressive forms of silicosis: characterization of pulmonary function measurements and clinical patterns

2007 ◽  
Vol 23 (3) ◽  
pp. 125-132 ◽  
Author(s):  
Iraj Mohebbi ◽  
Isa Abdi Rad
Keyword(s):  
Pulmonary Function ◽  
Pulmonary Function Test ◽  
Spontaneous Pneumothorax ◽  
Pulmonary Function Tests ◽  
Signs And Symptoms ◽  
Dust Exposure ◽  
Respiratory Impairment ◽  
Secondary Spontaneous Pneumothorax ◽  
Function Tests ◽  
Function Test

Background: A secondary spontaneous pneumothorax is a complication of an underlying pulmonary disease. In recent years, there have been only a few scattered reports of patients with silicosis also having a pneumothorax. Silicosis, a form of disabling pulmonary fibrosis, is a well-known occupational disease resulting from high-level exposure to silica or silica-containing dusts. The objective of the present study was to elucidate any associations between the occurrence of a pneumothorax, and pulmonary function tests and clinical observations performed prior to the pneumothorax; these two factors may be predictors for a pneumothorax among workers exposed primarily to silica-containing respirable dust. Methods: A diagnosis of silicosis was made on several factors: silica dust exposure, appropriate interval of time after exposure, clinical findings, pulmonary function tests and chest radiological findings. A checklist was designed for collecting data of occupational history, respiratory signs, and symptoms from onset of dust exposure to the occurrence of a pneumothorax. Spirometery was conducted in accordance to the recommendations of standard protocols and guidelines posited by the American Thoracic Society. Autopsies were performed in three cases where the patient had suffered a pneumothorax due to silicosis. Mann—Whitney U-tests and Fisher's exact tests were used to determine any associations between pneumothorax and predictor factors. Results: An association between a progressive decrease in pulmonary function test values and a pneumothorax was observed. The occurrence of a pneumothorax was associated with complaints of pleuretic chest pain, resting dyspnea, respiratory distress, paroxysmal nocturnal dyspnea, orthopnea and crackle. Conclusion: A characteristic decline in pulmonary function test values and the severity of respiratory impairment may facilitate the occurrence of a pneumothorax in silicosis. Toxicology and Industrial Health 2007; 23: 125—132.

scholarly journals Association between Respirable Dust Exposure and Lung Function Deterioration among Construction Site Workers

2020 ◽  
Vol 119 (11) ◽  
pp. 1789
Author(s):  
Nur Nabilah Mohamad Sulaiman ◽  
Normah Awang ◽  
Nurul Farahana Kamaludin
Keyword(s):  
Lung Function ◽  
Respirable Dust ◽  
Dust Exposure ◽  
Construction Site

scholarly journals Assessment of Worker Exposure to Occupational Organic Dust in a Hemp Processing Facility

2020 ◽  
Vol 64 (7) ◽  
pp. 745-753
Author(s):  
Melinda Gardner ◽  
Sue Reed ◽  
Maggie Davidson
Keyword(s):  
Cannabis Sativa ◽  
Respiratory Health ◽  
Respirable Dust ◽  
Dust Exposure ◽  
Breathing Zone ◽  
Organic Dust ◽  
Code Of Practice ◽  
Exposure Limit ◽  
Processing Facility ◽  
Personal Sampling

Abstract The cultivation and processing of industrial hemp, Cannabis sativa L., is a developing industry in Australia. Exposure to hemp dust is demonstrated as producing reactive and respiratory health effects, potentially causing permanent lung disease or damage. The aim of this study was to assess the airborne organic dust concentrations generated in an Australian hemp processing facility. Personal sampling, in the breathing zone of exposed workers was undertaken for exposure to respirable dust, along with parallel static sampling for airborne concentrations of inhalable and respirable dust fractions. Both static and personal sampling showed that respirable dust concentrations (mg m−3) exceeded the Australian Institute of Occupational Hygienists (AIOH) recommended maximum exposure limit of 1 mg m−3 (respirable fraction) for dusts not otherwise specified, with mean exposures (mg m−3) of M = 1.33, standard deviation (SD) = 1.09 (range 0.07–3.67 mg m−3) and M = 4.49, SD = 4.49 (range 0.77–11.08 mg m−3). The results of the investigation indicate that workers in the hemp processing industry are at risk of developing permanent and disabling respiratory disease due to high dust exposure. There is no Australian occupational exposure limit specifically for hemp dust. It is recommended further research is needed and industry-specific guidance material or model code of practice developed to effectively control exposures.

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