中文关键词臭氧(O₃)城郊差异安阳气象条件潜在源分析(PSCF) 英文关键词ozone (O₃)urban-rural differenceAnyangmeteorological conditionspotential source analysis function (PSCF)

作者	单位	E-mail
杨健	郑州大学化学与分子工程学院, 环境科学研究院, 郑州 450001	18739930980@126.com
尹沙沙	郑州大学化学与分子工程学院, 环境科学研究院, 郑州 450001	shashayin@zzu.edu.cn
于世杰	郑州大学化学与分子工程学院, 环境科学研究院, 郑州 450001
王丽娟	生态环境部环境规划院, 北京 100012
张瑞芹	郑州大学化学与分子工程学院, 环境科学研究院, 郑州 450001
郝建尤	安阳市生态环境局, 安阳 455000
苏方成	郑州大学化学与分子工程学院, 环境科学研究院, 郑州 450001
齐艳杰	郑州大学化学与分子工程学院, 环境科学研究院, 郑州 450001

中文摘要 基于国控环境空气质量监测站数据分析了安阳市2014~2017年不同功能分区（城市、郊区和工业）点位的臭氧（O₃）污染特征和变化规律，并研究了O₃污染的气象影响因素和潜在源分布.结果表明，2014~2017年安阳市各站点O₃年均浓度上升明显，O₃超标日的出现从2015年开始不断提前，最早在2017年4月出现；工业区点位O₃第90百分位数和平均值增长最快，年均分别增长16.0 μg·m^-3和13.0 μg·m^-3，郊区点位O₃第5百分位数增长最快，年均增长13.2 μg·m^-3；安阳市O₃月变化呈"M"型，且具有明显的空间差异；温度对O₃浓度起主导作用；气温大于23℃、相对湿度小于58%和西南偏南方向5 m·s^-1风速与高浓度O₃污染密切相关；不同季节O₃潜在来源差异明显，夏季主要分布在河北南部、湖北北部和沈阳北部.2017年5月首次出现O₃重污染日，工业点位O₃小时平均浓度高达405 μg·m^-3，重污染事件与西部干热气团转移导致持续高温有关. 英文摘要 This study uses the national ambient air quality station data of Anyang City from 2014 to 2017 to analyze the characteristics and variation rules of ozone (O₃) in different functional zones (urban, suburban, and industrial), and also studies meteorological influencing factors and potential source distributions of O₃ pollution. The results showed that the O₃ concentration in Anyang increased significantly between 2014 and 2017, whereby pollution started to advance from 2015 and the earliest occurrence of an O₃ pollution episode was in April 2017. The 90^th percentile and average concentrations of O₃ in the industrial zone increased at faster rates (average annual growth of 16.0 μg·m^-3 and 13.0 μg·m^-3, respectively) than of those in the urban and suburban zones. The O₃ concentrations at the suburban site showed the fastest increase of all zones at the 5^th percentile (average annual growth of 13.2 μg·m^-3). The monthly variation in O₃ concentrations in Anyang showed an "M" pattern that varied spatially depending on the zone. Temperature played a leading role in O₃ concentrations; air temperatures >23℃, relative humidity <58%, and a wind speed of 5 m·s^-1 in a south-southwesterly direction were closely related to the occurrence of high O₃ concentrations. Potential sources of O₃ in different seasons were significantly different, and mainly distributed in southern Hebei, northern Hubei, and northern Shenyang in summer. The first heavy O₃ pollution day in the studied period was in May 2017, at which time the highest O₃ concentration was found in the industrial zone (up to 405 μg·m^-3). This heavy O₃ pollution episode was related to the continuous high temperature that was caused by the transfer of a dry, hot air mass in western China.

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