潮汕地区地面臭氧浓度的变化特征

摘要

Based on the observational data of ground O3,NOx and meteorological conditions in Shantou,Jieyang and Chaozhou in July,the interrelationship between them and the O3 pollution of this area was analysed.The results showed that O3 pollution was light at the area,while the lightest polluted area was Shantou,followed by Chaozhou.The relation between O3 and NOx or between O3 and air humidity was negative,and the relation between O3 and air temperature was positive.O3 was easily to be generated and accumulated when air temperature was high and relative humidity was low.%对潮汕地区汕头、揭阳和潮州市3个代表性的监测点7月份的地面臭氧（O3）浓度进行了监测与评价,并对该地区3市O3的污染状况和O3与NOx、气温和相对湿度的相关性,以及O3浓度变化的特征进行了分析.结果表明,该地区受O3污染程度较轻,3个城市中又以汕头市的受污染程度最轻,其次是潮州市.O3与NOx浓度及其与空气湿度的变化呈负相关,与气温变化呈正相关.高温、低湿的气象条件更利于O3的产生和累积.