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邵阳市环境空气质量月报2018年6月

发布: 更新时间:2018-07-11 09:24 浏览人数:[ ]

 邵阳市环境空气质量月报

 

 邵阳市环境保护监测站                  2018年6月06期(总第6期)  

 

1、城市环境空气质量

2018年我市共有市化工厂、市罐头厂、市一中、市环保局和市水土所五个空气质量自动站监测点,均为空气质量日报点,其中市水土所作为对照点,不参与评价。按照《环境空气质量标准》(GB3095-2012)监测六个基本项目:二氧化硫、二氧化氮、可吸入颗粒物(PM10)、细颗粒物(PM2.5)、一氧化碳、臭氧。

 各监测项目与上年同期、上月的情况比较

二氧化硫:全市月平均浓度为14μg/m3,较上年同期下降17.6%,较上月下降33.3%。

二氧化氮:全市月平均浓度为16μg/m3,较上年同期下降5.9%,较上月下降30.4%。

可吸入颗粒物(PM10全市月平均浓度为45μg/m3,较上年同期上升7.1%,

 较上月下降47.7%。                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     

细颗粒物(PM2.5:全市月平均浓度为30μg/m3上年同期持平,较上月下降33.3%。

一氧化碳:全市日均值第95百分位浓度为0.8mg/m3,较上年同期下降11%,上月下降20.0%。

臭氧*:全市日最大8小时平均第90百分位浓度为158μg/m3,较上年同期上升30.6%,较上月上升11.3%。


 

1      20186全市环境空气污染物浓度均值统计

站点名称

SO2(μg/m3

NO2(μg/m3

PM10(μg/m3

CO(mg/m3

O3-8h(μg/m3

PM2.5(μg/m3

2018年6

2017年6

增幅
(%)

2018年6

2017年6

增幅
(%)

2018年6

2017年6

增幅
(%)

2018年6

2017年6

增幅
(%)

2018年6

2017年6

增幅
(%)

2018年6

2017年6

增幅
(%)

市一中

15

15

0

19

20

-5.0

47

40

17.5

0.9

1.0

-10.0

150

116

29.3

32

29

10.3

市化工厂

11

13

-15.4

16

16

0

45

43

4.7

0.8

0.9

-11.1

164

115

42.6

29

29

0

市罐头厂

15

26

-42.3

13

17

-23.5

48

42

14.3

0.9

0.8

11.1

160

120

33.3

31

31

0

市环保局

16

14

14.3

16

14

14.3

41

42

-2.4

0.9

0.9

0

175

132

32.6

29

30

-3.3

   

14

17

-17.6

16

17

-5.9

45

42

7.1

0.8

0.9

-11.0

158

121

30.6

30

30

0

国家标准年均值

60

40

70

4(日均值)

160(日最大8小时平均)

35

备注:根据《环境空气质量评价技术规范(试行)》(HJ633-2013)CO取城市日均值百分之95位数;臭氧取城市日最大8小时平均百分之90位数

(2)环境空气质量日报状况

本月我市空气质量自动站共发布环境空气质量日报30天。空气质量指数在30109之间,达标天数比例为90%。轻污染天数为3天,中度重度污染污染天数比例为10%。影响我市环境空气质量的主要污染物是臭氧,污染天数中首要污染物是臭氧

本月优良天数比例为90%,较上月下降10%。

与上年同期相比,综合指数下降0.18,优良天数减少3天。详见表2。


表2      2018年6月全市空气质量状况统计表

城市

空气质量分布(天数)

综合指数

优良天数

优良天数比例%

2018年

6

2017年

6

同期

增减

2018年

6

2017年

6

同期增减天数

2018年

6

2017年

6

2018

5

变化

幅度

上年同期

上月

6

14

13

3

 

 

 

3.32

3.14

0.18

14

17

-3

90

100

100

-10

-10

 

 

 

2、城市降水状况

我市降水设邵阳市监测站和泉塘冲两个测点。本月市监测站测点降水pH范围为5.295.98 pH 月均值为5.71;本月酸性降雨频率为40%。泉塘冲测点降水pH范围为5.716.23pH 月均值为6.13;本月酸性降雨。详见表3。


                                 

表3      20186月全市降水监测结果统计表

 

 

 

 

降水样品

 

 

酸雨

样品

 

 

降水pH

(无量纲)

降水量mm

月平均化学浓度mg/L

范围

均值

实测

ms/m

SO42-

NO3-

F-

Cl-

NH4+

Ca2+

Mg2+

Na+

K+

邵阳市

监测站

1

10

4

40

5.295.98

5.71

298.1

1.38

3.32

0.595

0.141

1.44

1.75

4.07

2.40

0.130

1.23

泉塘冲

1

8

0

0

5.716.23

6.13

182

1.50

2.66

0.551

0.113

2.16

2.68

3.23

1.52

0.129

1.85

 

备注

  根据湖南省环保厅下发的《湘环函[2016213号》文,邵阳市环保局2018111日下发的《关于将水、环境空气质量报表分开编辑、出刊、上报的通知》,经请示湖南省环境监测中心站同意后,对《邵阳市环境质量月报》进行改版,分为《邵阳市环境空气质量月报》和《邵阳市水环境质量月报》。《邵阳市环境质量月报》从1985年开始编辑发出,截止201712月共发出388期。

 

 

                               


  

城市环境空气质量定性评价

 

 

空气质量指数AQI

空气质量级别

质量状况

表征

颜色

对健康的影响

建议采取的措施

0~50

一级

绿色

空气质量令人满意,基本无空气污染

各类人群可正常活动

51~100

二级

黄色

空气质量可接受,但某些污染物可能对极少数异常敏感人群健康有较弱影响

较少数异常敏感人群应减少户外活动

101~150

三级

轻微污染

橙色

敏感人群症状有轻度加剧,健康人群出现刺激症状

儿童、老年人及心脏病、呼吸系统疾病患者应减少长时间、高强度户外锻炼

151~200

 四级

中度污染

红色

进一步加剧易感人群症状,可能对健康人群心脏、呼吸系统有影响

儿童、老年人及心脏病、呼吸系统疾病患者避免长时间、高强度户外锻炼,一般人群适量减少户外运动

201~300

五级

重度污染

紫色

心脏病和肺病患者症状显著加剧,运动耐受力降低,健康人群普遍出现症状

儿童、老年人和心脏病、肺病患者应停留在室内,停止户外运动,一般人群减少户外运动

>300

六级

严重污染

褐红色

健康人群运动耐受力降低,有明显强烈症状,提前出现某些疾病

儿童、老年人及病人应当留在室内,避免体力消耗,一般人群应避免户外运动

 

 

 

 

 

编  写:唐程伟、向红丽 

审  核:罗葳、简红霞      

审  定:赵红伟、朱  洲

签  发:申学军       

编写日期:2018年78