We investigated the effects of diesel exhaust particulates on the human all
ergic response using in vivo human nasal challenges. Diesel particles and p
henanthrene, one of their constituent polyaromatic hydrocarbons, were shown
to enhance total allergic antibody (IgE) production, enhance allergen-spec
ific IEE in the presence of allergen, and induce sensitization to a neoanti
gen. (C) 2000 Elsevier Science B.V. All rights reserved.