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Occupational asthma due to exposure to chengal wood dust
1Occupational Safety and Health Division, Ministry of Manpower, Block C, Kim Seng Road, Singapore 239436, Singapore. Lay_Tin_LEE@ttsh.com.sg
Background:
Chengal is a resistant rainforest hardwood that is commonly used in South-East Asia for the construction of boats, bridges, house structures and furniture. It contains oligostilbenoids, phenolics, quinones and resins.
Aims:
To describe a case of occupational asthma (OA) related to chengal wood dust.
Methods:
The patient was evaluated clinically for asthma in relation to occupational history, serial peak flow monitoring and specific inhalation challenge (SIC) test.
Results:
Peak flow monitoring showed significant deterioration during exposure to chengal wood dust at work. SIC test resulted in an isolated immediate asthmatic reaction.
Conclusions:
Exposure to chengal wood dust can lead to OA and possibly rhinitis. The underlying mechanism should be investigated.
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