六安市城区空气质量数据专报(2017年第51期)
浏览次数:3038      发布时间:2018-02-26 17:26

一、上周颗粒物监测数据(12月11日~12月17日)

单位:微克/立方米                                                                            

 

监测点位

监测大楼

朝阳厂

皖西学院

开发区

全市平均

PM10

PM2.5

PM10

PM2.5

PM10

PM2.5

PM10

PM2.5

PM10

PM2.5

12月11日

95

42

92

49

102

44

98

44

97

45

12月12日

112

59

104

62

119

65

104

59

110

61

12月13日

75

38

64

39

74

43

66

39

70

40

12月14日

53

36

44

32

52

41

46

40

49

37

12月15日

50

32

38

29

50

38

48

41

46

35

12月16日

128

98

110

96

131

106

130

101

125

100

12月17日

95

63

90

66

110

71

97

62

98

66

累计平均

86.9

52.6

77.4

53.3

91.1

58.3

84.1

55.1

85.0

54.9

 

 

二、颗粒物监测数据达标分析(1月1日~12月17日)

单位:微克/立方米                                                                                  

 

监测点位

金安区

裕安区

开发区

全市平均

监测指标

 

监测大楼

朝阳厂

皖西学院

开发区

PM10

2017年累计均值

83.7

72.1

85.3

73.4

78.8

年度目标

70.0

完成目标  控制浓度

-

-

-

-

-

18.4

PM2.5

2017年累计均值

45.9

41.2

44.4

51.4

45.7

年度目标

54.0

完成目标 控制浓度

316.4

293.9

118.4

261.3

258.2

374.4

 

三、空气优良天数达标率达标分析(1月1日~12月17日)

 

时间

统计天数

有效天数

达标天数

年度目标

达标率

完成目标需控制优良率

1月1日~

12月17日

351

350

285

82%

81.4%

97.0%                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      

 

 

四、一周气象条件分析

      周一(11日)我市受槽后西北气流控制,850hPa受反气旋影响,全市晴天,偏南风3级左右,空气污染气象条件等级为3级,对空气污染物稀释、扩散和清除无明显影响。

      周二(12日)近地面偏东风约4 米/秒,最大混合层厚度在1000 米左右,全市晴转多云,相对湿度稍有增加,空气污染气象条件等级为3级,扩散条件一般。

      周三至周五(13-15日)全市迎来一次降水过程,山区有雨夹雪,其他地区小雨,且近地面偏东风4~6 米/秒,空气污染气象条件等级为2 级,较有利于污染物扩散和清除。

      周六至周日(16-17日))高空受槽后西北气流控制,受冷空气影响,全市偏北风3到4级,最大混合层厚度升高至1000 米以上,相对湿度减小,空气污染气象条件等级为2级,较有利于污染物扩散。但随着冷空气南下,污染物也被扩散过来,因此16到17日空气质量轻度到中度污染,17日午后空气质量转为优。

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