Haze pollution is a hot research topic at present,and it is of great significance to prevent and control haze pollution.In this paper,specific causes of haze pollution in China are analyzed by literature research and ...Haze pollution is a hot research topic at present,and it is of great significance to prevent and control haze pollution.In this paper,specific causes of haze pollution in China are analyzed by literature research and summary,and impacts of economic structure,energy structure and compound factors on haze pollution are explored.Finally,the prevention and control measures of haze pollution are summarized.展开更多
Firstly,time and space characteristics of haze in Beijing-Tianjin-Hebei( B-T-H) region are revealed; results of haze source apportionment in the area are analyzed. Secondly,the influencing factors of haze are explored...Firstly,time and space characteristics of haze in Beijing-Tianjin-Hebei( B-T-H) region are revealed; results of haze source apportionment in the area are analyzed. Secondly,the influencing factors of haze are explored from the aspects of economic development,energy structure,industrial structure,transportation,etc. The internal driving forces of haze are also researched based on the DPSIR model. Finally some feasible and comprehensive control countermeasures against haze are suggested.展开更多
[Objective] The aim was to analyze the change characteristics of haze in Dezhou City. [Method] Based on the data of haze and sunshine duration from 11 counties or cities in Dezhou City from 1970 to 2009, the daily, mo...[Objective] The aim was to analyze the change characteristics of haze in Dezhou City. [Method] Based on the data of haze and sunshine duration from 11 counties or cities in Dezhou City from 1970 to 2009, the daily, monthly, seasonal and annual variation of haze and their variation reasons were studied, meanwhile, the effects of haze on sunshine duration were discussed. [Result] Haze occurred most frequently from 09:00 to 14:00 and daily variation was different in various seasons; haze days were the most in December (200 d), and next came January (161 d), while hazes days were the fewest in August (20 d). From seasonal variation, haze appeared most frequently in winter, accounting for 40% of that in total year, autumn (23%) and summer (20%) the second, and haze days were the fewest in spring (18%). For annual variation, haze days were the fewest from 1970 to 1979 (110 d) and most from 2000 to 2009 (724 d), with the tendency rate of 2.27 and 16.35 d/a, respectively. From regional distribution, haze days were the most in Decheng District, and next came Xiajin, while Yucheng had the fewest haze days. In addition, the annual variation of haze days was related to pollutant concentration in atmosphere, while monthly variation and seasonal variation were controlled by weather situation and meteorological condition. [Conclusion] The study could provide scientific reference for the prevention and impact assessment of haze.展开更多
基金Supported by Jiaozuo Municipal Government Bidding Project(JZZ201911Z)Public Safety Project of Henan Polytechnic University(660113/016/004)Annual Project of Henan Polytechnic University(SKND2019-19)
文摘Haze pollution is a hot research topic at present,and it is of great significance to prevent and control haze pollution.In this paper,specific causes of haze pollution in China are analyzed by literature research and summary,and impacts of economic structure,energy structure and compound factors on haze pollution are explored.Finally,the prevention and control measures of haze pollution are summarized.
基金Supported by National Social Science Foundation Item(15BJY059)Social Science Foundation Item of Beijing City(14JGB036)
文摘Firstly,time and space characteristics of haze in Beijing-Tianjin-Hebei( B-T-H) region are revealed; results of haze source apportionment in the area are analyzed. Secondly,the influencing factors of haze are explored from the aspects of economic development,energy structure,industrial structure,transportation,etc. The internal driving forces of haze are also researched based on the DPSIR model. Finally some feasible and comprehensive control countermeasures against haze are suggested.
文摘[Objective] The aim was to analyze the change characteristics of haze in Dezhou City. [Method] Based on the data of haze and sunshine duration from 11 counties or cities in Dezhou City from 1970 to 2009, the daily, monthly, seasonal and annual variation of haze and their variation reasons were studied, meanwhile, the effects of haze on sunshine duration were discussed. [Result] Haze occurred most frequently from 09:00 to 14:00 and daily variation was different in various seasons; haze days were the most in December (200 d), and next came January (161 d), while hazes days were the fewest in August (20 d). From seasonal variation, haze appeared most frequently in winter, accounting for 40% of that in total year, autumn (23%) and summer (20%) the second, and haze days were the fewest in spring (18%). For annual variation, haze days were the fewest from 1970 to 1979 (110 d) and most from 2000 to 2009 (724 d), with the tendency rate of 2.27 and 16.35 d/a, respectively. From regional distribution, haze days were the most in Decheng District, and next came Xiajin, while Yucheng had the fewest haze days. In addition, the annual variation of haze days was related to pollutant concentration in atmosphere, while monthly variation and seasonal variation were controlled by weather situation and meteorological condition. [Conclusion] The study could provide scientific reference for the prevention and impact assessment of haze.
