摘要
利用2015年-2018年娄底市空气质量监测点数据,探讨其浓度变化趋势和时空分布特征,并研究一氧化碳浓度与气象要素的相关关系。结果表明,娄底市一氧化碳浓度连续四年均为湖南省最高,并存在明显的季节变化趋势,冬季最高,夏季最低;日变化呈单峰变化趋势,浓度峰值出现在8:00-15:00;娄底市一氧化碳与气压呈极显著正相关的关系,与气温与降水呈极显著负相关的关系。娄底市区、冷水江和新化东南部一氧化碳浓度较高,体现了工业布局对一氧化碳浓度的影响。
Carbon monoxide(CO) concentrations data obtained from automatic air monitoring stations in Loudi City were used to investigate their concentration variation trends and temporal-spatial distributions from 2015 to 2018. Combined with the meteorological factors of the same period, the correlation between CO concentration and meteorological factors was studied by statistical analysis method. The results showed that the CO concentrations in Loudi City was the highest in Hunan Province from 2015 to 2018. There was an obviously seasonal cycle of CO, with largest in winter and the smallest in summer.CO exhibited significant diurnal variation with the peak around 8:00-15:00. CO correlated positively with air pressure and negatively with temperature and precipitation. The annual concentration of CO was higher in the Loudi downtown, Lengshuijiang city and southeast of Xinhua county, reflecting the influence of industrial layout.
作者
郭倩
潘海婷
黄河仙
雷坚志
肖童觉
Guo Qian;Pan Haiting;Huang Hexian;Lei Zhijian;Xiao Tongjue(Hunan Province Environmental Monitoring Center,Changsha 410019,China;Loudi Environmental Monitoring Center,Loudi 417000,China)
出处
《环境科学与管理》
CAS
2019年第12期116-119,共4页
Environmental Science and Management
基金
污染区域大气重金属原子荧光光谱测量技术在线监测应用示范(2014YQ06077309)
《环境空气臭氧监测逐级校准技术规范》(2019年湖南省标准化项目)
关键词
一氧化碳
娄底市
污染特征
时空分布
carbon monoxide
Loudi City
pollution characteristics
temporal-spatial distribution
