Thiols and mercaptans as pollutants

Name(s): 
Mercaptans
Nature 
Thiols have an intensely disagreeable odour and contact with the liquid or vapour may cause irritation of the skin, eyes and mucous membranes of the upper respiratory tract. Liquid thiols can also cause contact dermatitis.
Aggravates 
Value(s) 
Type 
(E) Emanations of other problems