Table 4 Results (MR: mean ± deviation) of the Ames test (TA100) for Plant B

From: Mutagenicity of drinking water sampled from the Yangtze River and Hanshui River (Wuhan section) and correlations with water quality parameters

Period

 

Dose (L/plate)

2007

2008

2009

−S9

+S9

−S9

+S9

−S9

+S9

Level period

Raw water

0.5

1.10 ± 0.04

1.09 ± 0.06

0.80 ± 0.06

1.02 ± 0.04

1.61 ± 0.11

1.15 ± 0.11

  

1

1.12 ± 0.04

1.13 ± 0.10

0.73 ± 0.17

1.11 ± 0.18

1.19 ± 0.03

1.10 ± 0.17

  

2

0.46 ± 0.02

1.38 ± 0.07

0.49 ± 0.00

1.32 ± 0.03

1.22 ± 0.12

1.31 ± 0.10

 

Finished water

0.5

1.05 ± 0.03

1.09 ± 0.11

1.08 ± 0.16

0.88 ± 0.04

1.72 ± 0.18

1.12 ± 0.05

  

1

1.67 ± 0.04

1.17 ± 0.09

1.07 ± 0.01

1.02 ± 0.11

1.12 ± 0.20

1.04 ± 0.13

  

2

0.37 ± 0.01

1.75 ± 0.10

1.33 ± 0.11

1.15 ± 0.02

1.41 ± 0.11

1.34 ± 0.03

 

Distribution water

0.5

1.08 ± 0.04

0.92 ± 0.07

1.10 ± 0.14

1.02 ± 0.11

1.01 ± 0.14

1.11 ± 0.04

  

1

0.99 ± 0.06

0.83 ± 0.02

1.27 ± 0.02

1.17 ± 0.01

1.28 ± 0.04

1.15 ± 0.12

  

2

0.45 ± 0.01

1.00 ± 0.03

1.40 ± 0.08

1.07 ± 0.16

1.75 ± 0.19

1.35 ± 0.01

Wet period

Raw water

0.5

1.03 ± 0.08

0.99 ± 0.05

1.11 ± 0.01

0.97 ± 0.18

1.11 ± 0.09

1.10 ± 0.06

  

1

1.02 ± 0.25

1.05 ± 0.03

1.11 ± 0.06

0.93 ± 0.06

1.11 ± 0.20

1.04 ± 0.03

  

2

0.81 ± 0.03

0.81 ± 0.22

1.16 ± 0.06

1.01 ± 0.02

1.36 ± 0.05

1.15 ± 0.10

 

Finished water

0.5

0.95 ± 0.19

1.05 ± 0.02

1.12 ± 0.03

1.04 ± 0.11

1.20 ± 0.10

0.94 ± 0.12

  

1

1.00 ± 0.06

1.12 ± 0.19

1.44 ± 0.13

1.10 ± 0.10

1.22 ± 0.09

1.05 ± 0.07

  

2

1.01 ± 0.13

1.20 ± 0.13

1.62 ± 0.08

1.18 ± 0.05

1.28 ± 0.03

1.14 ± 0.06

 

Distribution water

0.5

0.90 ± 0.14

1.03 ± 0.09

1.03 ± 0.18

1.07 ± 0.04

0.99 ± 0.23

1.04 ± 0.15

  

1

0.96 ± 0.15

1.15 ± 0.08

1.06 ± 0.16

1.10 ± 0.14

1.08 ± 0.21

1.06 ± 0.17

  

2

1.24 ± 0.11

1.03 ± 0.09

1.27 ± 0.05

0.98 ± 0.13

1.27 ± 0.02

1.19 ± 0.10

Dry period

Raw water

0.5

0.91 ± 0.07

1.03 ± 0.18

0.96 ± 0.22

0.98 ± 0.11

1.13 ± 0.20

0.96 ± 0.10

  

1

0.86 ± 0.09

1.07 ± 0.04

0.84 ± 0.07

0.80 ± 0.13

1.12 ± 0.03

1.15 ± 0.05

  

2

1.02 ± 0.12

1.17 ± 0.10

0.80 ± 0.19

0.85 ± 0.05

1.28 ± 0.20

1.63 ± 0.13

 

Finished water

0.5

0.90 ± 0.09

1.06 ± 0.11

0.98 ± 0.01

0.86 ± 0.05

1.18 ± 0.21

1.07 ± 0.04

  

1

1.02 ± 0.16

1.08 ± 0.09

1.03 ± 0.01

0.96 ± 0.09

1.46 ± 0.03

1.20 ± 0.17

  

2

1.07 ± 0.17

1.39 ± 0.08

0.96 ± 0.10

0.91 ± 0.08

1.80 ± 0.07

1.88 ± 0.11

 

Distribution water

0.5

1.06 ± 0.15

1.05 ± 0.06

1.20 ± 0.07

0.91 ± 0.04

1.27 ± 0.02

1.17 ± 0.06

  

1

1.15 ± 0.06

1.11 ± 0.14

1.06 ± 0.06

0.91 ± 0.15

1.48 ± 0.05

1.14 ± 0.09

  

2

1.56 ± 0.02

1.30 ± 0.04

0.89 ± 0.17

0.99 ± 0.15

2.18 ± 0.14

1.42 ± 0.15

  1. MR: mutation ratio, the fold-increase over the negative control plates.
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