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- W2186394562 abstract "An evaluation of dust-related problems associated with manual stone quarrying at Lokpa in Umuchieze, a rural community in Umunneochi Local Government Area of Abia State, Nigeria was carried out. The major objectives were to ascertain the nature of the parent rock material from which the quarry workers inhale dust, and to establish if there is a positive relationship between the manual stone quarrying and occurrence of symptoms of respiratory disease symptoms and skin dermatoses. The elemental analysis and silica content of parent rock materials and dust samples were carried out at three quarry sites designated A,B, and C. Questionnaires were administered to 270 quarry workers and a control population of 290 non-quarry workers. The smokers and asthmatics were removed leaving a sample size of 202 quarry workers and 220 non-quarry workers. The questionnaires were used to ascertain the relationship between manual stone quarrying and dust inhalation and the occurrence of respiratory disease symptoms and dermatoses. The knowledge of the manual quarry workers about the health implications of their work was also assessed. Elemental analyses showed that the rock and the resulting dust particles contained iron, zinc, cadmium, nickel, lead, chromium, barium, beryllium, and aluminium. Exposure to these metals and silica are known to cause pneumoconiosis. The test of proportion (p≥0.05) shows that there is an association between dust inhalation and the occurrence of respiratory disease symptoms and skin dermatoses. About 83% of quarry workers know that their work exposes them to health hazards but cannot quit owing to poverty or lack of social welfare etc. This study is indicative and can be extrapolated to pockets of other stone-quarrying communities in Nigeria. There is a need for further studies of occupational exposure to dust, especially in developing countries." @default.
- W2186394562 created "2016-06-24" @default.
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- W2186394562 date "2009-01-01" @default.
- W2186394562 modified "2023-09-27" @default.
- W2186394562 title "Occurrence of respiratory and skin problems among manual stone-quarrying workers" @default.
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