translate English to French: (1994) indicated that ETS emission factors for formaldehyde from six U.S. commercial cigarettes ranged from 958 to 1880 µg/cigarette, with a mean of 1310 ± 349 µg/cigarette.
entre 958 et 1 880 µg/cigarette, et que la moyenne était de 1 310 ± 349 µg/cigarette.