Table 2: Mean concentration, standard deviation (only for THM4), minimum and maximum of the 4 studied THMa ( ), and mean and value of the two samples for MXb and bromatec ( ) before and after the boiling experiments. Percentage of change in bold.

Kettle Microwave Saucepan
Before After Before After Before After

Chloroform (TCM)
 Mean (SD)7.30 (0.24)2.25 (0.11)2.13 (0.07)0.33 (0.32)2.79 (0.07)0.61 (0.45)
 Min–max(6.97–7.50)(2.13–2.36)(2.04–2.21)(0.09–0.78)(2.72–2.88)(0.37–1.29)
 % change −69 −84 −78
Bromodichloromethane (BDCM)
 Mean (SD)15.37 (0.33)4.97 (0.23)5.61 (0.18)0.16 (0.03)7.88 (0.48)1.82 (0.13)
 Min–max(14.90–15.59)(4.71–5.22)(5.42–5.84)(0.14–0.20)(7.18–8.22)(1.64–1.95)
 % change −68 −97 −77
Dibromochloromethane (DBCM)
 Mean (SD) 36.54 (0.78)17.84 (0.72)22.06 (0.51)0.53 (0.10)31.27 (0.89)9.18 (0.69)
 Min–max(35.43–37.26)(17.01–18.55)(21.42–22.68)(0.45–0.67)(30.01–32.04)(8.26–9.75)
 % change −51 −98 −71
Bromoform (TBM)
 Mean (SD)66.62 (1.04)39.98 (1.43)78.96 (1.78)2.02 (0.42)93.37 (0.72)33.78 (2.03)
 Min–max(65.36–67.90)(38.49–41.53)(76.70–81.04)(1.72–2.64)(92.65–94.35)(31.03–35.57)
 % change −40 −97 −64
Sum of 4 THMs (THM4)
 Mean (SD)125.85 (2.32)65.05 (2.49)108.76 (2.53)3.04 (0.85)135.32 (1.87)45.4 (2.45)
 Min–max(122.66–128.19)(62.34–67.66)(105.58–111.77)(2.40–4.29)(133.05–137.39)(42.22–47.60)
 % change −48 −97 −66
MX
 Mean 0.9<0.50.60<0.50.90<0.5
 Min–max(0.7–1.0)(all < 0.5)(0.60–0.60)(all < 0.5)(0.7–1.1)(all < 0.5)
 % change*
Bromate
 Mean 3.92.33.93.63.74.4
 Min–max(3.6–4.1)(2.3)(3.6–4.1)(3.2–3.9)(3.2–4.1)(4.1–4.7)
 % change −40 −8 21

THM4 and all 4 species: concentration in g/L, limit of quantification of 0.4  g/L, all means .
bMX: concentration in ng/L, limit of quantification of 0.5 ng/L, all means .
cBromate: concentration in g/L, limit of quantification of 0.5  g/L, all means .
*Percentages of change when values were under the limit of quantification (LOQ) for MX are not reported due to high uncertainty.