摘要
利用2015年黄石市5个监测站点可吸入颗粒物(PM10)和细颗粒物(PM2.5)的在线监测数据和风向、风速、气温、气压等常规地面气象要素观测资料,分析了黄石市大气PM10和PM2.5的质量浓度水平分布特征及其与气象参数的关系。结果表明:2015年黄石市5个监测站点大气PM10和PM2.5年均浓度范围分别为95.8—108.6μg·m^-3和64.3—68.9μg·m^-3,均超过国家二级标准;季均质量浓度呈现显著的冬季高夏季低的变化规律,冬季PM10和PM2.5的质量浓度分别为(143.9±62.2)μg·m^-3和(95.5±44.5)μg·m^-3,夏季PM10和PM2.5的质量浓度分别为(75.2±24.0)μg·m^-3和(50.7±17.3)μg·m^-3。5个监测站中,下陆区、西塞山区和铁山区的PM10和PM2.5颗粒物污染较为严重;各站点大气PM10和PM2.5质量浓度显著相关。大气颗粒物浓度与气象因素的分析显示,黄石市大气颗粒物浓度与气温呈显著的负相关关系,与气压呈正相关关系,与风速和相对湿度的相关性不显著,受风向影响变化较大。
The characteristics of mass concentrations of PM10 and PM2.5 ,and their distribution and correlation with meteorological parameters in Huangshi were analyzed using the online monitoring data of inhalable particulate matter (PM10 ) and fine particulate matter (PM2.5 ) at five monitoring stations and surface meteorological elements such as wind direction,wind speed,air temperature,air pressure from January to December in2015.The results show that the annual average concentrations of PM10 and PM2.5 at the five monitoring sites in Huangshi in2015 range within 95.8-108.6 μg · m^-3 and 64.3-68.9 μg · m^-3 ,respectively;both exceed the National secondary standard.The seasonal mean mass concentrations of PM10 and PM2.5 are higher (143.9 ± 62.2 for PM10 and 95.5 ±44.5 μg · m^-3 for PM2.5 ) in winter,and low (75.2±24.0 for PM10 and 50.7 ±17.3 μg · m^-3 for PM2.5 ) in summer,respectively.Among the five monitoring stations,PM pollution is heavier in the Xialu,Xisai,and Tieshan districts,and the mass concentrations of PM10 and PM2.5 have significant correlation at all sites.The concentrations of atmospheric particulate matter have a negative correlation with air temperature,positive correlation with air pressure,no significant correlation with wind speed and relative humidity,and influenced largely by wind direction.
作者
虎彩娇
李锦伦
王祖武
成海容
柯豪昊
吴婉烨
HU Cai-jiao;LI Jin-lun;WANG Zu-wu;CHENG Hai-rong;KE Hao-hao;WU Wan-ye(Department of Environmental Engineering,School of Resource and Environmental Science,Wuhan University,Wuhan 430079,China;Huangshi Environmental Monitoring Centre,Huangshi435000,China;Huangshi Environmental Protection Office,Huangshi435000,China)
出处
《气象与环境学报》
2019年第4期40-46,共7页
Journal of Meteorology and Environment
基金
国家自然科学基金面上项目(41673102)
国家重点研发计划(2016YFC0200905)共同资助
