• The Journal of Pediatrics of Korean Medicine
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• v.24 no.2
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• pp.75-87
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• 2010

Objectives Halitosis affects a large proportion of the population, and it may cause a significant social or psychological problems but pathophysiological mechanism of halitosis is unclear. The purpose of this study is to investigate pediatric halitosis patients' characteristics and their related symptoms. Methods 133 patients were participated at the Pediatric Clinic of Kyanhee Oriental Medical Center from May 29th, 2010 to July 10th, 2010. We measured sulfide level and reviewed medical charts and asked some questions. Patients of sex, age, respiratory symptoms, digestive symptoms, systemic symptoms and sulfide level were analyzed. Results Stuffy nose, cough after sleep, sputum, snoring, indigestion, stomachache, motion sickness, and Bi-We-Soo diagnosis grades were significantly associated with halitosis Conclusions Based on data, we found that halitosis is related to the respiratory and digestive symptoms. Also, we can refer this study when diagnosing patients or giving treatments to patients.

• Safety and Health at Work
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• v.11 no.1
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• pp.109-117
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• 2020

Background: Ammonia and hydrogen sulfide are harmful gases generated during aerobic/anaerobic bacterial decomposition of livestock manure. We evaluated ammonia and hydrogen sulfide concentrations generated from workplaces at livestock farms and determined environmental factors influencing the gas concentrations. Methods: Five commercial swine farms and five poultry farms were selected for monitoring. Real-time monitors were used to measure the ammonia and hydrogen sulfide concentrations and environmental conditions during the manure-handling processes. Monitoring was conducted in the manure storage facility and composting facility. Information on the farm conditions was also collected through interview and walk-through survey. Results: The ammonia concentrations were significantly higher at the swine composting facilities (9.5-43.2 ppm) than at other manure-handling facilities at the swine and poultry farms, and high concentrations of hydrogen sulfide were identified during the manure agitation and mixing process at the swine manure storage facilities (6.9-19.5 ppm). At the poultry manure-handling facilities, the ammonia concentration was higher during the manure-handling processes (2.6-57.9 ppm), and very low hydrogen sulfide concentrations (0-3.4 ppm) were detected. The air temperature and relative humidity, volume of the facility, duration of manure storage, and the number of animals influenced the gas concentrations. Conclusion: A high level of hazardous gases was generated during manure handling, and some levels increased up to risk levels that can threaten workers' health and safety. Some of the farm operational factors were also found to influence the gas levels. By controlling and improving these factors, it would be possible to protect workers' safety and health from occupational risks.