|Document ID (ISN)||104384|
|ISSN - Serial title
||0105-1873 - Contact Dermatitis
|Convention or series no.
||Aalto-Korte K., Lauerma A., Alanko K.
||Occupational allergic contact dermatitis from lichens in present-day Finland
||Jan. 2005, Vol.52, No.1, p.36-38. 15 ref.
||Lichens are abundant in forests, living on trees, soil, stones and rocks. They contain usnic acid and other lichen acids that are contact allergens. Lichens and liverworts cause woodcutter's dermatitis, a form of eczema that appears in the forest on the bare skin areas, especially in cold and wet weather. Occupational allergic contact dermatitis from lichens occurs in forestry and horticultural workers and among pickers of lichens used in fragrances. Lichens can cause immediate allergy, contact urticaria, rhinitis and asthma and probably also photo-allergic contact dermatitis. Lichens are used for the manufacture of oak moss absolute, a fragrance constituent that is one of the commonest contact allergens. Four cases of occupational allergic contact dermatitis from lichens in Finland during the past decade, two in farmers and two in gardeners, are described.
||allergens; forestry; horticulture; eczema; lichens
||case study; Finland; usnic acid; skin tests; asthma; allergy tests; perfumes
||D - Periodical articles
|Country / State or Province||Finland|
Toxic and dangerous substances
|Broad subject area(s)
Forestry and logging