translate English to French: The overall reactivity-based half-life of acrolein in surface water is estimated to be between 30 and 100 hours (Mackay et al., 1995). In groundwater, halflives of 3361344 hours (1456 days) are estimated based on aerobic degradation (Howard et al., 1991).
La demi-vie de lacroléine dans latmosphère, calculée à partir des constantes du taux de réaction du radical hydroxyle, varie entre 3,4 et 33,7 heures (Atkinson, 1985; Edney et al., 1986b; Haag et al., 1988a; Howard, 1989; Howard et al., 1991; BUA, 1996).