Citation:
Kaiser J, Wolfe GM, Bohn B, Broch S, Fuchs H, Ganzeveld LN, Gomm S, Haseler R, Hofzumahaus A, Holland F, et al. Evidence for an unidentified non-photochemical ground-level source of formaldehyde in the Po Valley with potential implications for ozone production. Atmos. Chem. Phys. 2015;15:1289-1298.