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Some observations on pulmonary function tests in rice mill workers.

S K Singh1, S D Nishith, G S Tandon

  • 1Department of Physiology, K G's Medical College, Lucknow.

Indian Journal of Physiology and Pharmacology
|April 1, 1988
PubMed
Summary
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Rice husk dust exposure significantly impairs lung function in rice mill workers. Prolonged exposure is linked to decreased FVC, FEV1, and other respiratory measures, potentially causing allergic inflammation.

Area of Science:

  • Occupational Health
  • Pulmonary Medicine
  • Environmental Health

Background:

  • Rice milling generates significant dust, posing potential respiratory risks to workers.
  • Occupational exposure to agricultural dusts is a known cause of respiratory impairment.

Purpose of the Study:

  • To investigate the impact of rice husk dust exposure on the pulmonary functions of rice mill workers.
  • To identify the relationship between the duration of exposure and the severity of lung function decline.

Main Methods:

  • A comparative study involving 150 male rice mill workers and 50 age, sex, and background-matched controls.
  • Pulmonary function tests including FVC, FEV1, FEV3, PEFR, and MVV were conducted.

Main Results:

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  • Twenty-eight rice mill workers exhibited obstructive pulmonary impairment, and eight showed restrictive impairment.
  • A direct correlation was found between the duration of rice husk dust exposure and the decline in FVC, FEV1, FEV3, PEFR, and MVV.

Conclusions:

  • Rice husk dust exposure negatively affects pulmonary function in rice mill workers.
  • The observed decline in lung function is likely due to allergic inflammatory reactions in the pulmonary tissue caused by rice husk dust.