欢迎您来到邵阳市环境保护局。   今天是:

    全文检索:

邵阳市环境空气质量月报2018年5月份

发布: 更新时间:2018-06-11 10:12 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5月05期(总第5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16μg/m3,较上年同期下降5.9%,较上月下降23.8%。

二氧化氮:全市月平均浓度为16μg/m3,较上年同期下降20.0%,较上月下降30.4%。

可吸入颗粒物(PM10全市月平均浓度为55μg/m3,较上年同期下降5.2%,

 较上月下降36.0%。                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     

细颗粒物(PM2.5:全市月平均浓度为37μg/m3,较上年同期下降7.5%,较上月下降17.8%。

一氧化碳:全市日均值第95百分位浓度为1.0mg/m3,与上年同期持平,较上月持平。

臭氧*:全市日最大8小时平均第90百分位浓度为126μg/m3,较上年同期下降24.1%,较上月下降11.3%。


 

1      2018年5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5月

2017年5月

增幅
(%)

2018年5月

2017年5月

增幅
(%)

2018年5月

2017年5月

增幅
(%)

2018年5月

2017年5月

增幅
(%)

2018年5月

2017年5月

增幅
(%)

2018年5月

2017年5月

增幅
(%)

市一中

15

14

7.1

17

23

-26.1

56

59

-5.3

1.1

1.0

10.0

118

162

-27.2

38

41

-7.9

市化工厂

16

15

6.7

18

20

-10.0

54

60

-11.1

0.9

1.2

-25.0

125

164

-23.8

35

35

0

市罐头厂

17

20

-15.0

15

20

-25.0

59

56

5.1

0.9

1.0

-10.0

128

169

-24.3

39

40

-2.6

市环保局

17

18

-5.6

14

17

-17.6

53

56

5.7

1.2

1.0

20.0

131

178

-26.4

36

37

-2.8

   

16

 17

-5.9

16

20

-20.0

55

58

-5.2

1.0

1.0

0

126

166

-24.1

37

40

-7.5

国家标准日均值

150

80

150

4

160(日最大8小时平均)

75

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28天(因受北方沙尘暴传输影响,27-29日颗粒物数据做剔除处理,剔除天优良率不参与评价)。空气质量指数在34~89之间,达标天数比例为100%。无轻度、中度、重度污染。影响我市环境空气质量的首要污染物是可吸入颗粒物(PM10)、细颗粒物(PM2.5)和臭氧。

本月优良天数比例为100%,较上月上升13.3%。

与上年同期相比,综合指数下降0.43,优良天数增加3天。优良天数比例上升16.7%。详见表2。


表2      2018年5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

5月

2017年

5月

同期

增减

2018年

5月

2017年

5月

同期增减天数

2018年

5月

2017年

5月

2018年

4月

变化

幅度

上年同期

上月

5月

9

19

 

 

 

 

3.56

3.99

-0.43

28

25

3

100

83.3

86.7

16.7

13.3

 

 

 

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,其中泉塘冲测点为 对照点。本月市监测站测点降水pH范围为6.01~6.72, pH 月均值为6.22;本月无酸性降雨。泉塘冲测点降水pH范围为6.48~7.10,pH 月均值为6.70;本月无酸性降雨。详见表3。


                                 

表3      2018年5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

13

0

0

6.01~6.72

6.22

113.8

2.39

4.24

0.716

0.144

1.95

1.85

2.79

1.52

0.164

1.35

泉塘冲

1

12

0

0

6.48~7.10

6.70

71.4

1.87

3.85

0.733

0.123

1.55

1.94

3.10

1.79

0.143

2.15

 

备注

  根据湖南省环保厅下发的《湘环函[2016]213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67