Dueñas C, Fernández M C, Cañete S, Carretero J, Liger E
Department of Applied Physics I, Faculty of Sciences, University of Málaga, Málaga 29071, Spain.
Chemosphere. 2004 Aug;56(6):631-9. doi: 10.1016/j.chemosphere.2004.04.013.
Ozone concentrations were measured at two (urban and a rural) sites near the city of Málaga (Spain). The aim of this study was to determine the daily, monthly and seasonal variation patterns of ozone concentrations at both sites and to study the possible regional influences. The daily variations mostly have the usual features with the afternoon maximum and the night minimum being more pronounced in the urban area. The average monthly concentrations throughout the year start to increase in March reaching their maximum values in July for the urban site. However, in the rural area, the monthly variations are smaller reaching their maximum value in June. The hourly evolution of the ozone concentrations in both sampling sites is well defined in spring and summer and not so well defined in autumn and winter. Taking into account the four seasons, the rural concentrations are higher than the urban ones. Summer is the season when there are similar concentrations at both sampling sites. Average hourly summer afternoon ozone for the hours 12:00-20:00 LST exceeded the 110 microg m(-3) European Union guidelines for human health for 8 h ozone exposure at the urban and rural sites.
在西班牙马拉加市附近的两个地点（一个城市地点和一个农村地点）测量了臭氧浓度。本研究的目的是确定两个地点臭氧浓度的日、月和季节变化模式，并研究可能的区域影响。日变化大多具有常见特征，下午最大值和夜间最小值在城市地区更为明显。全年的月平均浓度在3月开始上升，城市地点在7月达到最大值。然而，在农村地区，月变化较小，在6月达到最大值。两个采样地点臭氧浓度的每小时变化在春季和夏季定义明确，在秋季和冬季则不太明确。考虑到四季，农村地区的浓度高于城市地区。夏季是两个采样地点浓度相似的季节。当地标准时间12:00至20:00的夏季平均每小时下午臭氧浓度在城市和农村地点均超过了欧盟规定的8小时臭氧暴露人体健康标准110微克/立方米。
