Sanz M J, Calatayud V, Sánchez-Peña G
Fundación CEAM, Charles R. Darwin 14, Parc Tecnològic, E-46980 Paterna, Valencia, Spain.
Environ Pollut. 2007 Feb;145(3):620-8. doi: 10.1016/j.envpol.2006.02.031. Epub 2006 May 15.
Ambient ozone concentrations were measured with passive samplers in the framework of the EU and UN/ECE Level II forest monitoring programme. Data from France, Italy, Luxembourg, Spain and Switzerland are reported for 2000-2002, covering the period from April to September. The number of plots increased from 67 in 2000 to 83 in 2002. The year 2001 experienced the highest ozone concentrations, reflecting more stable summer meteorological conditions. Average 6-month ozone concentrations above 45 ppb were measured this year in 40.3% of the plots, in contrast with the less than 21% measured in the other 2 years. Gradients of increasing ozone levels were observed from North to South and with altitude. Comments are made on the regional trends and on the time frame of the higher ozone episodes. Also, some recommendations enabling a better comparison between plots are provided.
在欧盟和联合国欧洲经济委员会二级森林监测计划框架内，使用被动采样器测量了环境臭氧浓度。报告了法国、意大利、卢森堡、西班牙和瑞士2000 - 2002年的数据，涵盖4月至9月期间。样地数量从2000年的67个增加到2002年的83个。2001年臭氧浓度最高，反映出夏季气象条件更稳定。今年在40.3%的样地中测得6个月平均臭氧浓度高于45 ppb，相比之下，其他两年测得的比例不到21%。从北到南以及随着海拔高度都观察到臭氧水平上升的梯度。对区域趋势和较高臭氧事件的时间框架进行了评论。此外，还提供了一些有助于样地之间更好比较的建议。
