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Respirable dust and crystalline silica exposure among rice mill workers of northeast India.
Chhetry, B Surya Kumar; Dewangan, K N; Kulkarni, Nikhil.
Afiliación
  • Chhetry BSK; Department of Agricultural Engineering, North Eastern Regional Institute of Science and Technology, Nirjuli, Arunachal Pradesh, India.
  • Dewangan KN; Department of Agricultural Engineering, North Eastern Regional Institute of Science and Technology, Nirjuli, Arunachal Pradesh, India.
  • Kulkarni N; Chemical Sciences Division, ICMR-National Institute of Occupational Health, Ahmedabad, Gujarat, India.
J Occup Environ Hyg ; : 1-11, 2024 Aug 29.
Article en En | MEDLINE | ID: mdl-39208406
ABSTRACT
Crystalline silica is a Group I lung carcinogen primarily known as a causative agent for silicosis. A study was performed to quantify respirable dust, and respirable crystalline silica (RCS) in the rice mills of northeast India. Seventy-two respirable dust samples were collected from the worker's breathing zone from four rice mills at three locations feeding, sieving, and polishing sections for two paddy varieties Ranjit and Sali. The National Institute of Occupational Safety and Health (NIOSH), method #7602, was used to determine RCS. The results show that geometric mean TWA dust and RCS emissions in the rice mills varied from 3.97 to 455.00 mg/m3 and 0.02 to 5.38 mg/m3, respectively. RCS exposures were higher during milling of the Sali variety paddy (GM 0.76 mg/m3) than the Ranjit variety paddy (GM 0.25 mg/m3). Respirable dust and RCS emissions were considerably higher in the feeding and sieving sections than in the polishing section. Respirable dust and RCS exposure varied significantly (p < 0.001) with paddy variety. Respirable dust and RCS were highly correlated for different rice mills; however, the proportion of RCS in the dust was higher in the Sali variety paddy than in the Ranjit variety paddy. RCS exposure to the workers at the feeding and sieving sections was observed to be higher than the occupational exposure limits (OELs) published by Safe Work Australia, American Conference of Governmental Industrial Hygienists (ACGIH), National Institute for Occupational Safety and Health (NIOSH), Health and Safety Executive (HSE), and Factories Amendment Act, 1987, Government of India.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Occup Environ Hyg Asunto de la revista: MEDICINA OCUPACIONAL / SAUDE AMBIENTAL Año: 2024 Tipo del documento: Article País de afiliación: India Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Occup Environ Hyg Asunto de la revista: MEDICINA OCUPACIONAL / SAUDE AMBIENTAL Año: 2024 Tipo del documento: Article País de afiliación: India Pais de publicación: Reino Unido