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沈阳市集中式生活饮用水水源水质状况报告

沈阳日报

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依据国务院2015年出台的《水污染防治行动计划》(简称“水十条”)第八条的规定:全力保障水生态环境安全,保障饮用水水源安全;从水源到水龙头全过程监管饮用水安全;地方各级人民政府及供水单位应定期监测、检测和评估本行政区域内饮用水水源、供水厂出水和用户水龙头水质等饮水安全状况,地级及以上城市自2016年起向社会公开。

沈阳市环保局依规将沈阳市环境监测中心站监测的沈阳市集中式生活饮用水水源水质状况向社会予以公示。这是2017年9月的监测报告。

一、监测概况

2017年9月,沈阳市集中式生活饮用水水源监测水量5390.23万吨,其中达标水量5390.23万吨,达标率100%。

(一)监测点位

沈阳市集中式生活饮用水水源包括地表水水源和地下水水源。其中,地表水水源为异地取水的抚顺大伙房水库,我市共设3个监测点位,分别为沈阳水务集团第八水厂、圣源水务东净水厂、圣源水务西净水厂;地下水水源共设9个监测点位,分别为沈阳水务集团第一~第九水厂。

(二)监测项目

1.地表水水源:监测项目为《地表水环境质量标准》表1中的基本项目(23项,化学需氧量除外)、表2的补充项目(5项)和表3中的优选特定项目(33项),共61项,每年7月全分析109项。

2.地下水水源:监测项目为《地下水质量标准》中23项,每年7月全分析39项。

(三)监测方法

水质项目分析方法参见国家相关标准及《水和废水监测分析方法》(第四版)等。

二、评价标准及方法

地表水水源根据《地表水环境质量标准》Ⅲ类水质标准进行评价。基本项目按照《地表水环境质量评价方法(试行)》进行评价,补充项目、特定项目采用单因子评价法进行评价。

地下水水源根据《地下水质量标准》Ⅲ类水质标准,采用单因子评价法进行评价。

三、评价结果

(一)总体情况

2017年9月,沈阳市集中式生活饮用水水源监测水量5390.23万吨,其中达标水量5390.23万吨,达标率100%。

(二)地表水水源

3个集中式生活饮用水地表水源监测水量3704.34万吨,达标水量为3704.34万吨,达标率为100%。

(三)地下水水源

9个集中式生活饮用水地下水源监测水量1685.89万吨,达标水量1685.89万吨,达标率100%。

四、其他需要说明的情况

1.集中式生活饮用水水源,是指进入输水管网送到用户的和具有一定取水规模(供水人口一般大于1000人)的在用、备用和规划水源。

2.集中式生活饮用水源和饮用水的区别:饮用水水源为原水,居民饮用水为末梢水,水源水经自来水厂净化处理达到《生活饮用水卫生标准》的要求后,进入居民供水系统作为饮用水。

地表水环境质量标准限值 表1 单位:mg/L

序        标准值                          Ⅰ类                                                                   Ⅱ类                   Ⅲ类                  Ⅳ类                 Ⅴ类

号        分类                                                                                                                                                                         

          项目                                                                                                                                                                         

1         水温(℃)                        人为造成的环境水温变化应限制在:                                                                                                              

                                          周平均最大温升≤1周平均最大温降≤2                                                                                                           

2         PH值                            6 ~ 9                                                                                                                                       

          (无量纲)                                                                                                                                                                   

3         溶解氧≥                        饱和率                                                                 6                      5                     3                    2   

                                          90%(或7.5)                                                                                                                                   

4         高锰酸盐                        2                                                                      4                      6                     10                   15  

          指数≤                                                                                                                                                                       

5         化学需氧量(COD)≤             15                                                                     15                     20                    30                   40  

6         五日生化                        3                                                                      3                      4                     6                    10  

          需氧量                                                                                                                                                                       

          (BOD5)≤                                                                                                                                                                   

7         氨氮                            0.15                                                                   0.5                    1.0                   1.5                  2.0 

          (NH3-N)≤                                                                                                                                                                  

8         总磷                            0.02                                                                   0.1                    0.2                   0.3                  0.4 

          (以P计)≤                     (湖、库0.01)                                                          (湖、库0.025)         (湖、库0.05)         (湖、库0.1)         (湖、库0.2)

9         总氮                            0.2                                                                    0.5                    1.0                   1.5                  2.0 

          (湖、库,以N计)≤                                                                                                                                                          

10        铜≤                            0.01                                                                   1.0                    1.0                   1.0                  1.0 

11        锌≤                            0.05                                                                   1.0                    1.0                   2.0                  2.0 

12        氟化物                          1.0                                                                    1.0                    1.0                   1.5                  1.5 

          (以F-计)≤                                                                                                                                                                 

13        硒≤                            0.01                                                                   0.01                   0.01                  0.02                 0.02

14        砷≤                            0.05                                                                   0.05                   0.05                  0.1                  0.1 

15        汞≤                            0.00005                                                                0.00005                0.0001                0.001                0.001

16        镉≤                            0.001                                                                  0.005                  0.005                 0.005                0.01

17        铬(六价)≤                    0.01                                                                   0.05                   0.05                  0.05                 0.1 

18        铅≤                            0.01                                                                   0.01                   0.05                  0.05                 0.1 

19        氰化物≤                        0.005                                                                  0.05                   0.2                   0.2                  0.2 

20        挥发酚≤                        0.002                                                                  0.002                  0.005                 0.01                 0.1 

21        石油类≤                        0.05                                                                   0.05                   0.05                  0.5                  1.0 

22        阴离子表面                      0.2                                                                    0.2                    0.2                   0.3                  0.3 

          活性剂≤                                                                                                                                                                     

23        硫化物≤                        0.05                                                                   0.1                    0.2                   0.5                  1.0 

24        粪大肠菌群                      200                                                                    2000                   10000                 20000                40000

          (个/L)≤                                                                                                                                                                   

地表水环境质量标准限值 表2  单位:mg/L

序    号    项    目                标  准  值

1           硫酸盐(以SO24 -计)    250 

2           氯化物(以C1-计)       250 

3           硝酸盐(以N计)         10  

4           铁                      0.3 

5           锰                      0.1 

地表水环境质量标准限值 表3 单位:mg/L

序号    项目              标准值    序号    项目                              标准值    序号    项 目              标准值

1       三氯甲烷          0.06      29      六氯苯                            0.05      57      马拉硫磷           0.05

2       四氯化碳          0.002     30      硝基苯                            0.017     58      乐果               0.08

3       三溴甲烷          0.1       31      二硝基苯④                        0.5       59      敌敌畏             0.05

4       二氯甲烷          0.02      32      2,4-二硝基                        0.0003    60      敌百虫             0.05

                                            甲苯                                                                       

5       1,2-二氯          0.03      33      2,4,6-三硝                        0.5       61      内吸磷             0.03

        乙烷                                基甲苯                                                                     

6       环氧氯            0.02      34      硝基氯苯⑤                        0.05      62      百菌清             0.01

        丙烷                                                                                                           

7       氯乙烯            0.005     35      2,4-二硝基                        0.5       63      甲萘威             0.05

                                            氯苯                                                                       

8       1,1-二氯'乙烯     0.03      36      2,4-二氯                          0.093     64      溴氰菊酯           0.02

                                            苯酚                                                                       

9       1,2-二氯          0.05      37      2,4,6-三氯                        0.2       65      阿特拉津           0.003

        乙烯                                苯酚                                                                       

10      三氯乙烯          0.07      38      五氯酚                            0.009     66      苯并(a)芘          2.8×10-6

11      四氯乙烯          0.04      39      苯胺                              0.1       67      甲基汞             1.0×10-6

12      氯丁二烯          0.002     40      联苯胺                            0.0002    68      多氯联苯           2.0×10-5

                                                                                                ⑥                     

13      六氯丁            0.0006    41      丙烯酰胺                          0.0005    69      微囊藻毒           0.001

        二烯                                                                                    素-LR                  

14      苯乙烯            0.02      42      丙烯腈                            0.1       70      黄磷               0.003

15      甲醛              0.9       43      邻苯二甲酸                        0.003     71      钼                 0.07

                                            二丁酯                                                                     

16      乙醛              0.05      44      邻苯二甲酸                        0.008     72      钴                 1.0 

                                            二(2-乙基                                                                  

                                            已基)酯                                                                    

17      丙烯醛            0.1       45      水合肼                            0.01      73      铍                 0.002

18      三氯乙醛          0.01      46      四乙基铅                          0.0001    74      硼                  0.5

19      苯                0.01      47      吡啶                              0.2       75      锑                 0.005

20      甲苯              0.7       48      松节油                            0.2       76      镍                  0.02

21      乙苯              0.3       49      苦味酸                            0.5       77      钡                  0.7

22      二甲苯①          0.5       50      丁基黄原酸                        0.005     78      钒                  0.05

23      异丙苯            0.25      51      活性氯                            0.01      79      钛                 0.1 

24      氯苯              0.3       52      滴滴涕                            0.001     80      铊                 0.0001

25      1,2-二氯          1.0       53      林丹                              0.002                                    

        苯                                                                                                             

26      1,4二氯苯         0.3       54      环氧七氯                          0.0002                                   

27      三氯苯②          0.02      55      对硫磷                            0.003                                    

28      四氯苯③          0.02      56      甲基对硫磷                        0.002                                    

注:

①二甲苯:指对-二甲苯、间-二甲苯、邻-二甲苯。

②三氯苯:指1,2,3-三氯苯、1,2,4-三氯苯、1,3,5-三氯苯。

③四氯苯:指1,2,3,4-四氯苯、1,2,3,5-四氯苯、1,2,4,5-四氯苯。

④二硝基苯:指对-二硝基苯、间-二硝基苯、邻-二硝基苯。

⑤硝基氯苯:指对-硝基氯苯、间-硝基氯苯、邻-硝基氯苯。

⑥多氯联苯:指PCB-1016、PCB-1221、PCB-1232、PCB-1242、PCB-1248、PCB-1254、PCB-1260。

地下水质量标准限值

项目          类别                  Ⅰ类    Ⅱ类    Ⅲ类    Ⅳ类    V类 

序号          标准值                                                    

              项目                                                      

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            5.5~6.5            〈5.5,>9

                               8.5~9                  

6     总硬度                         ≤150        ≤300       ≤450       ≤550      >550

      (以CaCO3计)                                                                        

      (mg/L)                                                                             

7     溶解性总固体                   ≤300        ≤500       ≤1000      ≤2000     >2000

      (mg/L)                                                                             

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       ≤l.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                     ≤0.001      ≤0.001     ≤0.002     ≤0.0l     >0.01

      (以苯酚)(mg/L)                                                                     

17    阴离子合成洗                   不得检出     ≤0.1       ≤0.3       ≤0.3      >0.3

      涤剂(mg/L)                                                                         

18    高锰酸盐指数                   ≤1.0        ≤2.0       ≤3.0       ≤10       >10 

      (mg/L)                                                                             

19    硝酸盐                         ≤2.0        ≤5.0       ≤20        ≤30       >30 

      (以N计〕(mg/L)                                                                     

20    亚硝酸盐                       ≤0.001      ≤0.01      ≤0.02      ≤0.1      >0.1

      (以N计)(mg/L)                                                                      

21    氨氮(NH4)                      ≤0.02       ≤0.02      ≤0.2       ≤0.5      >0.5

      (mg/L)                                                                             

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)                   ≤0.00005    ≤0.0005    ≤0.001     ≤0.001    >0.001

26    砷(As)(mg/L)                   ≤0.005      ≤0.01      ≤0.05      ≤0.05     >0.05

27    硒(Se)(mg/L〕                  ≤0.01       ≤0.01      ≤0.01      ≤0.1      >0.1

28    镉(Cd)(mg/L)                   ≤0.0001     ≤0.001     ≤0.01      ≤0.01     >0.01

29    铬(六价)                       ≤0.005      ≤0.01      ≤0.05      ≤0.1      >0.1

      (Cr6+)(mg/L〕                                                                      

30    铅(Pb)(mg/L)                   ≤0.005      ≤0.01      ≤0.05      ≤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                     ≤3.0        ≤3.0       ≤3.0       ≤100      >100

      (个/L)                                                                             

37    细菌总数                       ≤100        ≤100       ≤100       ≤1000     >1000

      (个/rnL)                                                                           

38    总α放射牲                     ≤0.1        ≤0.1       ≤0.1       >0.1       >0.1

      (Bq/L)                                                                             

39    总β放射性                     ≤0.1        ≤1.0       ≤1.0       >1.0       >1.0

      (Bq/L)                                                                             

2017年9月沈阳市

集中式生活饮用水水源水质状况

序号    水源名称              水源类型    监测水量              达标情况    超标指标

                                          (万吨)                          及超标倍数

1       大伙房                地表水      1181.34               达标        -  

2       圣源水务              地表水      1092.00               达标        -  

        东净水厂                                                                

3       圣源水务              地表水      1431.00               达标        -  

        西净水厂                                                                

4       一厂于洪              地下水      33.12                 达标        -  

5       二厂北陵              地下水      226.26                达标        -  

6       三厂新南塔            地下水      386.12                达标        -  

7       四厂砂山              地下水      158.70                达标        -  

8       五厂尹家              地下水      179.40                达标        -  

9       六厂石佛寺            地下水      417.96                达标        -  

10      七厂黄家              地下水      98.64                 达标        -  

11      八厂李巴彦            地下水      43.20                 达标        -  

12      九厂翟家              地下水      142.49                达标        -  

备注:沈阳市地表水水源为异地取水的抚顺大伙房水库。

沈阳日报、沈报融媒记者 邱菊 整理

本版统筹 李海英

魏爽 制图、制表

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