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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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The size of Respirable dust is -
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The correct answer is  - dust paicles smaller than 5 microns are directly inhaled into the lungs and are retained there. This fraction of dust is called respirable dust. - it is mainly responsible for pneumoconiosis. Reference : Park's textbook of preventive and social medicine, 23rd edition, pg no:805 <\p>