摘要
基于河北省2018—2019年O_(3)监测数据,分析了河北省O_(3)污染的时空变化特征和空间集聚特征。结果表明,2018、2019年河北省11个地级市的O_(3)超《环境空气质量标准》(GB 3095—2012)的二级标准限值(160μg/m^(3))天数平均值分别为74、73 d;季节变化规律为夏季>春季>秋季>冬季;1年中的月变化呈先上升后下降的趋势,6月达到最高值,12月达到最低值。河北省O_(3)浓度具有显著的空间集聚特征,O_(3)浓度高的热点主要分布在东南部地区,O_(3)浓度低的冷点主要分布在东北部地区。邯郸市、邢台市、衡水市、沧州市、石家庄市和保定市O_(3)浓度较高,属于重污染地区,需加强区域间联防联控。
Based on the O_(3)monitoring data of Hebei Province during 2018-2019,the characteristics of O_(3)pollution temporal variation and spatial agglomeration in Hebei Province were analyzed.Results showed that the number of days that O_(3)exceeded the second level(160μg/m^(3))of“Ambient air quality standards”(GB 3095-2012)were 74 and 73 d for 2018 and 2019,respectively.Seasonal variation of O_(3)concentration was in the order of summer>spring>autumn>winter.The monthly variation of O_(3)concentration showed a trend of first increase and then decrease,with the maximum appearing in June and the minimum in December.The O_(3)concentration in Hebei Province had a significant spatial agglomeration characteristics.The hot spots with high O_(3)concentration gathered in the southeastern region,while the cold spots with low O_(3)concentration gathered in the northeastern region.As heavily polluted areas,Handan,Xingtai,Hengshui,Cangzhou,Shijiazhuang and Baoding had relatively higher O_(3)concentration.These areas needed to take measures together.
作者
郭燕燕
查慧敏
罗欣欣
钱金平
GUO Yanyan;ZHA Huimin;LUO Xinxin;QIAN Jinping(College of Resources and Environmental Sciences,Hebei Normal University,Shijiazhuang Hebei 050024;Institute of Geographical Sciences,Hebei Academy of Sciences,Shijiazhuang Hebei 050011)
出处
《环境污染与防治》
CAS
CSCD
北大核心
2021年第10期1286-1291,共6页
Environmental Pollution & Control
关键词
河北省
O_(3)
时间变化
空间集聚
Hebei Province
O_(3)
temporal variation
spatial agglomeration
