Table A5.1 Environmental fate data for organic chemicals Density Chemical Molar pKa Water KH Sorption Biodegradation half-life (days) (M/atm) mass (kg/m3) solubility coefficients (g/mol) (mg/L) at 25°C Log Log Aerobic Anaerobic Kow Koc Chlorinated alkanes Chloromethanes Bromoform 252.7 2889 [1] 3100 [1] 1.88 [2] 2.37 [2] 2.18 [3] >120 [4] field trial <1 methanogenic – conditions 8–12 denitrifying conditions [5] field trial Bromodichloromethane 163.8 1971 [6] 6735 [3] 0.42–4.72 1.88 [1] 1.68 [3] >120 [4] field trial 9–29 methanogenic – [1] 2.10 [6] conditions 27–35 denitrifying conditions [5] field trial Chloroform 119.4 1498 [6] 7950 [1] 0.27–0.34 1.97 [2] 1.77 [3] >120 [4] field trial 13–18 methanogenic – [1] 2.22 [6] conditions 53–84 denitrifying conditions [5] field trial Dibromochloromethane 208.3 2440 [1] 4000 [1] 0.13–1.00 2.08 [1] 1.92 [1] >120 [4] field trial 11–36 methanogenic – [1] 1.89 [3] conditions 22–35 denitrifying conditions [5] field trial Dichloromethane 84.9 1326 [6] 13200 [6] 0.31–0.44 1.25– 1.00– 7–28 [7] 28–112 [7] – [6] 1.30 [6] 1.25 [6] unacclimated lab unacclimated lab test test
Table A5.1 Environmental fate data for organic chemicals Chemical Molar mass (g/mol) Density (kg/m3) pKa Water solubility (mg/L) KH (M/atm) Sorption coefficients Biodegradation half-life (days) at 25°C Log Kow Log Koc Aerobic Anaerobic Chlorinated alkanes Chloromethanes Bromoform 252.7 2889 [1] – 3100 [1] 1.88 [2] 2.37 [2] 2.18 [3] >120 [4] field trial <1 methanogenic conditions 8–12 denitrifying conditions [5] field trial Bromodichloromethane 163.8 1971 [6] – 6735 [3] 0.42–4.72 [1] 1.88 [1] 2.10 [6] 1.68 [3] >120 [4] field trial 9–29 methanogenic conditions 27–35 denitrifying conditions [5] field trial Chloroform 119.4 1498 [6] – 7950 [1] 0.27–0.34 [1] 1.97 [2] 2.22 [6] 1.77 [3] >120 [4] field trial 13–18 methanogenic conditions 53–84 denitrifying conditions [5] field trial Dibromochloromethane 208.3 2440 [1] – 4000 [1] 0.13–1.00 [1] 2.08 [1] 1.92 [1] 1.89 [3] >120 [4] field trial 11–36 methanogenic conditions 22–35 denitrifying conditions [5] field trial Dichloromethane 84.9 1326 [6] – 13200 [6] 0.31–0.44 [6] 1.25– 1.30 [6] 1.00– 1.25 [6] 7–28 [7] unacclimated lab test 28–112 [7] unacclimated lab test
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