Childhood exposure to ambient polycyclic aromatic hydrocarbons is linked to epigenetic modifications and impaired systemic immunity in T cells.

Clin Exp Allergy. 2015 Jan;45(1):238-48. doi: 10.1111/cea.12377.
Hew KM, Walker AL, Kohli A, Garcia M, Syed A, McDonald-Hyman C, Noth EM, Mann JK, Pratt B, Balmes J, Hammond SK, Eisen EA, Nadeau KC.