II类监测河段

III类监测河段

IV类监测河段

超V类监测河段

V类监测河段

总监测河段

超V类所占百分比

2000

5

1

1

1

-

8

12.50%

2001

5

-

2

1

-

8

12.50%

2002

4

1

2

-

7

28.57%

2003

4

1

-

2

-

7

28.57%

2004

4

1

1

2

-

8

25.00%

2005

5

1

-

2

-

8

25.00%

2006

7

1

-

2

-

10

20.00%

2007

7

1

-

2

-

10

20.00%

2008

6

1

1

2

-

10

20.00%

2009

7

7

-

2

-

16

12.50%

2010

7

1

-

2

-

10

20.00%

2011

4

4

-

2

-

10

20.00%

2012

8

-

-

2

-

10

20.00%

2013

3

5

-

2

10

20.00%

2014

13

5

3

1

2

24

4.17%

2015

13

7

1

3

1

25

12.00%