项目序号

类别标准值项目

Ⅰ类

Ⅱ类

Ⅲ类

Ⅳ类

Ⅴ类

1

色(度)

≤5

≤5

≤15

≤25

>25

2

嗅和味

无

无

无

无

有

3

浑浊度(度)

≤3

≤3

≤3

≤10

>10

4

肉眼可见物

无

无

无

无

有

5

pH

6.5～8.5

5.5～6.58.5～9

<5.5，>9

6

总硬度(以CaCO3,计)(mg/L)

≤150

≤300

≤450

≤550

>550

7

溶解性总固体(mg/L)

≤300

≤500

≤1000

≤2000

>2000

8

硫酸盐(mg/L)

≤50

≤150

≤250

≤350

>350

9

氯化物(mg/L)

≤50

≤150

≤250

≤350

>350

10

铁(Fe)(mg/L)

≤0.1

≤0.2

≤0.3

≤1.5

>1.5

11

锰(Mn)(mg/L)

≤0.05

≤0.05

≤0.1

≤1.0

>1.0

12

铜(Cu)(mg/L)

≤0.01

≤0.05

≤1.0

≤1.5

>1.5

13

锌(Zn)(mg/L)

≤0.05

≤0.5

≤1.0

≤5.0

>5.0

14

钼(Mo)(mg/L)

≤0.001

≤0.01

≤0.1

≤0.5

>0.5

15

钴(Co)(mg/L)

≤0.005

≤0.05

≤0.05

≤1.0

>1.0

16

挥发性酚类(以苯酚计)(mg/L)

≤0.001

≤0.001

≤0.002

≤0.01

>0.01

17

阴离子合成洗涤剂(mg/L)

不得检出

≤0.1

≤0.3

≤0.3

>0.3

18

耗氧量(CODa法，以O₂计)/(mg/L)

≤1.0

≤2.0

≤3.0

≤10

>10

19

硝酸盐(以N计)(mg/L)

≤2.0

≤5.0

≤20

≤30

>30

20

亚硝酸盐(以N计)(mg/L)

≤0.001

≤0.01

≤0.02

≤0.1

>0.1

21

氨氮(NH4)(mg/L)

≤0.02

≤0.02

≤0.2

≤0.5

>0.5

22

氟化物(mg/L)

≤1.0

≤1.0

≤1.0

≤2.0

>2.0

23

碘化物(mg/L)

≤0.1

≤0.1

≤0.2

≤1.0

>1.0

24

氰化物(mg/L)

≤0.001

≤0.01

≤0.05

≤0.1

>0.1

25

汞(Hg)(mg/L)

≤0.0001

≤0.0001

≤0.001

≤0.002

>0.002

26

砷(As)(mg/L)

≤0.001

≤0.001

≤0.01

≤0.05

>0.05

27

硒(Se)(mg/L)

≤0.01

≤0.01

≤0.01

≤0.01

>0.1

28

镉(Cd)(mg/L)

≤0.0001

≤0.001

≤0.01

≤0.01

>0.01

29

铬(六价)(Cr6 )(mg/L)

≤0.005

≤0.01

≤0.05

≤0.1

>0.1

30

铅(Pb)(mg/L)

≤0.005

≤0.005

≤0.01

≤0.1

>0.1

31

铍(Be)(mg/L)

≤0.00002

≤0.0001

≤0.0002

≤0.001

>0.001

32

钡(Ba)(mg/L)

≤0.01

≤0.1

≤1.0

≤4.0

>4.0

33

镍(Ni)(mg/L)

≤0.005

≤0.05

≤0.05

≤0.1

>0.1

34

滴滴涕(μg/L)

不得检出

≤0.005

≤1.0

≤1.0

>1.0

35

六六六(μg/L)

≤0.005

≤0.05

≤5.0

≤5.0

>5.0

36

总大肠菌群(个/L)

≤3.0

≤3.0

≤3.0

≤100

>100

37

细菌总数(个/mL)

≤100

≤100

≤100

≤1000

>1000

38

总σ放射性(Bq/L)

≤0.1

≤0.1

≤0.1

>0.1

>0.1

39

总β放射性(Bq/L)

≤0.1

≤1.0

≤1.0

>1.0

>1.0