Table 1.

Modeled kinetics of precursor biosorption and PFHxS formation in a water-sediment slurry.^a

		PFHxSAmS	PFHxSAm	FHxSA
		kbio
Rate constant [day−1]	19°C 29°C	−2.7 (−1.2 – −4.2) −5.0 (−3.7 – −6.4)	−4.9 (−3.4 – −6.4) −3.7 (−2.4 – −5.0)	−0.2 (−0.04 – −0.4) −0.7 (−0.2 – −1.4)
Half-life [day]	19°C 29°C	0.3 (0.2 – 0.6) 0.1 (0.1 – 0.2)	0.1 (0.1 – 0.2) 0.2 (0.1 – 0.3)	3.5 (1.7 – 17) 1.0 (0.5 – 3.5)
		kcontrol
Rate constant [day−1]	19°C 29°C	−0.4 (−0.3 – −0.4) −1.6 (−1.2 – −2.0)	−1.3 (−0.7 – −2.0) −1.4 (−0.8 – −2.0)	−0.1 (−0.1 – −0.2) −0.3 (−0.1 – −0.6)
Half-life [day]	19°C 29°C	1.7 (1.7 – 2.3) 0.4 (0.3 – 0.6)	0.5 (0.3 – 1.0) 0.5 (0.3 – 0.9)	6.9 (3.5 – 6.9) 2.3 (1.2 – 6.9)
		kPFHxS
Rate Constant [nM day−1]	19°C 29°C	6 (1 – 12) 10−3 9 (3 – 14) 10−3	6 (1 – 11) 10−3 9 (4 – 16) 10−3	3 (2 – 4) 10−2 8 (6 – 9) 10−2
Activation energy [kJ mol−1]		24 (−63 – 120)	31 (−51 – 120)	73 (49 – 98)

^aResults show the expected mean and the 90^th confidence interval in parentheses.