摘要
利用福州市国控监测站点2013年4月-2017年3月PM_(2.5)和PM_(10)质量浓度监测数据,对福州市不同粒径颗粒物污染特征进行研究.结果表明:时间变化方面,福州市空气质量整体较好,PM_(2.5)和PM_(10)浓度呈逐年下降趋势;PM_(2.5)、PM_(10)、PM_(2.5)/PM_(10)时间变化规律具有一致性:呈现冬季>春季>秋季>夏季的季节性特征;春季、夏季和秋季工作日浓度均高于周末的浓度,存在周末效应,冬季周末浓度则显著高于工作日浓度;日变化呈明显的双峰型变化趋势.空间变化方面,PM_(2.5)和PM_(10)浓度变化表现为工业区>市区>清洁区,清洁区PM_(2.5)/PM_(10)比值最高,其次是市区、工业区.相关分析结果表明:PM_(10)和PM_(2.5)存在显著相关性,且相关性明显受季节影响,夏季相关性最高.城市颗粒物与气态污染物(SO_2、NO_2)复合性较强.
The PM 2.5 and PM 10 concentration data from April 2013 to March 2017 in Fuzhou were collected and the characteristics of different size particles were analyzed. The results showed that in the temporal variation characteristics the environment overall quality of Fuzhou was good and the concentrations of PM 2.5 and PM 10 showed a decrease trend year by year. The seasonal variation of PM 2.5 , PM 10 and PM 2.5 /PM 10 were all presented as follows: winter>spring>autumn>summer. In the weekly variation, the concentrations of particulate matters on weekdays in the spring, summer and autumn were higher than that of weekends, with existence of the weekend effect, in the winter the concentrations of particulate matters on weekends were significantly higher than that of weekdays. In the diurnal variation, particulate matters showed an obvious trend of bimodal type change on the whole. In the spatial variation characteristics, the annual average concentration of clean area was the lowest both PM 2.5 and PM 10 , then was urban and industrial area. The highest ratio of PM 2.5 /PM 10 was in clean area,followed by urban and industrial area. It had a significant correlation between PM 10 and PM 2.5 . The results of correlation analysis between PM 2.5 and PM 10 showed that there was strong complex between them, which was stronger in summer than other season.It had strong complex characteristics between particles and gaseous pollutants.
作者
陈芳
颜志辉
饶清华
许丽忠
CHEN Fang;YAN Zhihui;Rao Qinghua;XU Lizhong(College of Ocean Science and Biochemistry Engineering, Fuqing Branch of Fujian Normal University, Fuqing 350300, China;Key Laboratory of Measurement and Control System for Offshore Environment, Fuqing Branch of Fujian Normal University, Fujian Province University, Fuqing 350300, China;College of Environmental Science and Engineering, Fujian Normal University, Fuzhou 350007, China)
出处
《安徽大学学报（自然科学版）》
CAS
北大核心
2019年第3期80-88,共9页
Journal of Anhui University(Natural Science Edition)
基金
福建省中青年教师教育科研项目(JAT160567)
福建省社会科学规划重大项目:福建省大气污染区域性特征驱动因素及健康风险研究项目(FJ2018Z004)
近海流域环境测控治理福建省高校重点实验室(福建师范大学福清分校)开放基金资助项目(S1-KF17012)
福建省自然科学基金资助项目(2018J01744)
