杨柳飞絮浓度测定与污染状况评价方法  

Method to Determine the Concentration of Flying Catkin from Poplar and Willow and Evaluate Its Pollution Degree

作　　者：韩丛海 孙睿霖[2] 韩彦华 金佳莉 王成[2] Han Conghai;Sun Ruilin;Han Yanhua;Jin Jiali;Wang Cheng(Beijing Municipal Forestry and Parks Bureau,Beijing 100013,China;.Research Institute of Forestry,Chinese Academy of Forestry/Urban Forest Research Center,National Forestry and Grassland Administration,Beijing 100091,China;.Changping Forestry and Parks Bureau,Beijing 102299,China)

机构地区：[1]北京市园林绿化局,北京100013 [2]中国林业科学研究院林业研究所国家林业和草原局城市森林研究中心,北京100091 [3]北京市昌平区园林绿化局,北京102299

出　　处：《中国城市林业》2023年第3期24-27,共4页Journal of Chinese Urban Forestry

基　　金：林草科技成果国家级推广项目“城市树木飞絮、花粉等植源性污染防控技术推广示范”(2020133129)。

摘　　要：杨柳飞絮作为植源性污染物代表之一,在我国北方地区城市普遍存在,科学测定和评价杨柳飞絮污染状况,对于精准制定防治对策具有重要理论和实践意义。研究首次提出空气飞絮浓度拍照测量法,明确具体操作流程和飞絮浓度计算方法,并在北京市进行测定试验和污染等级评价,在此基础上,把空气中飞絮浓度高低与居民室外活动感受相结合,将杨柳飞絮污染等级划分为4个等级,即Ⅰ级低度污染(空气飞絮浓度<4个/m^(3))、Ⅱ级轻度污染(飞絮浓度为4~9个/m^(3))、Ⅲ级中度污染(飞絮浓度为9~13个/m^(3))、Ⅳ级重度污染(飞絮浓度>13个/m^(3)),其中Ⅰ级情况下居民正常活动不受影响,市民可以接受。空气飞絮浓度拍照测量法能够及时有效地测定空气中杨柳飞絮浓度,实现杨柳飞絮浓度的快速观测,具有简便、快速、实时、准确的特点,为后续研究飞絮问题提供了比较科学实用的方法,有助于飞絮治理更加科学精准。As one of typical phytogenic pollutants,flying catkin from poplar and willow trees are prevalent in cities in northern China.Scientific measurement and evaluation of the catkins pollution are of important theoretical and practical significance for formulating precise control measures.The study develops the photographic method for measuring flying catkins concentration,clarifies the specific operation process and the calculation method of flying catkins concentration,and carries out the measurement test and catkin pollution degree evaluation in Beijing.Based on the observation data in Beijing and considering the connection between the flying catkins concentration with residentsoutdoor activities,the paper divides the catkin pollution degree into four levels,i.e.,low pollution(Grade I)with the air catkins concentration below 4/m^(3),light pollution(Grade II)with the concentration at 4-9/m^(3),medium pollution(Grade III)with the concentration at 9-13/m^(3),and heavy pollution(Grade IV)with the concentration large than 13/m^(3).Among them,the concentration in Grade I can be accepted by the citizens as it doesnt affect the normal activities of residents.The photographic method for measurement is able to measure the concentration of flying catkins in the air in a timely and effective way,and provide a simple,quick,real-time and accurate way for the fast observation of the concentration.This study provides a scientific and practical method for the follow-up study of flying catkins and contributes to more scientific and more precise treatment of the flying catkins.

关 键 词：杨柳飞絮 飞絮浓度 拍照测定法 污染等级 

分 类 号：X51[环境科学与工程—环境工程]