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Indian J Occup Environ Med. 2012 Sep;16(3):142-4. doi: 10.4103/0019-5278.111762.

Respiratory morbidity due to ammonia exposure among the employees of a urea manufacturing industry located in western part of India.

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Department of Community Medicine, Government Medical College, Surat, Gujarat, India.


Ammonia is produced in the fertilizer industry. The amount of ammonia inhaled by employees of a urea manufacturing industry is very high. It would be interesting to study whether such an amount has any impact on the employees working there for many years. This study explores the magnitude of respiratory morbidity among employees of a urea manufacturing industry and to establish its association with exposure to ammonia. Data was collected related to significant respiratory illnesses of all the employees over a period of 10 years using computer-based medical record system of the industry's hospital. The results obtained from the data analysis showed that there is no cause and effect relationship between exposure to ammonia and respiratory morbidity. Thus it was advised to the medical authority at industry to go for mass treatment with anthelmintics and that all the employees should be screened for specific allergens and this information should be used while managing respiratory morbidity.


Ammonia; respiratory morbidity; urea industry

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