|
Region
|
Statistics
|
Chloroform
|
Bromoform2
|
BDCM
|
DBCM
|
TTHM
|
|---|
|
Sydney water corporation (n = 45)
|
Mean
|
37.3
|
2.86
|
16.9
|
6.93
|
64.0
|
|
SD
|
24.0
|
2.87
|
5.32
|
3.34
|
29.8
|
|
Median
|
33.2
|
2
|
17.3
|
5.5
|
66.1
|
|
IQR
|
22.9
|
1.2
|
5.6
|
3.1
|
30.1
|
|
Range
|
8.5 to 201
|
0.67 to 17.8
|
6.66 to 45.0
|
0.67 to 27.7
|
20.5 to 234
|
|
Hunter water corporation (n = 5)3
|
Mean
|
42.7
|
1.76
|
14.7
|
7.25
|
66.4
|
|
SD
|
13.1
|
1.11
|
5.26
|
6.15
|
11.4
|
|
Median
|
39.8
|
2.0
|
17.3
|
5.5
|
66.4
|
|
IQR
|
22.2
|
1.3
|
5.6
|
3.2
|
29.0
|
|
Range
|
23.3 to 65.0
|
0.67 to 3.95
|
5.64 to 24.8
|
1.06 to 21.9
|
36.7 to 81.3
|
|
Both areas combined (n = 50)
|
Mean
|
37.7
|
2.8
|
16.7
|
7.0
|
66.4
|
|
SD
|
23.4
|
2.8
|
5.3
|
3.6
|
28.9
|
|
Median
|
34.4
|
2.0
|
17.3
|
5.5
|
66.4
|
|
IQR
|
22.2
|
1.3
|
5.6
|
3.2
|
29.0
|
|
Range
|
8.5 to 201.2
|
0.67 to 17.8
|
5.6 to 45.0
|
0.67 to 27.7
|
20.5 to 234.3
|
-
1Means, standard deviations and range of THM concentrations across LGAs for SWC and HWC.
-
2SWC: 18.7% of values were below the detection limit in 1995–1998 and 63.6% from 1999 onwards. HWC: 51% of values were below the detection limit.
-
3HWC data available from 1997 to 2001.
