Abstract：
:In order to contribute to current knowledge of ozone concentrations and transport across the Central Massif, a monitoring station was installed at 1780 m on the upper Spanish plateau about 55 km from the city of Madrid. Ozone concentrations and standard meteorological variables were measured in June and July 2002. A smoothed ozone hourly cycle was obtained with mean values of 120 and 110 microgm(-3) during day-time and night-time, respectively. The highest ozone concentrations were recorded in the SE-S-SW wind sectors, proving the influence of transport from the Madrid urban plume to the upper plateau. This assumption was also supported by the satisfactory correlation between ozone peaks obtained at the monitoring site and those recorded in a representative station on the foothill located on the lower plateau during episodic situations. To assess the contribution of long-range transport, backward air mass trajectories were computed each day of measurements at 820 hPa. The lowest ozone mean was linked to Atlantic Ocean air masses, and the highest to air masses from Central Europe.
journal_name
Chemospherejournal_title
Chemosphereauthors
Sánchez ML,de Torre B,García MA,Pérez Idoi
10.1016/j.chemosphere.2004.12.079subject
Has Abstractpub_date
2005-07-01 00:00:00pages
576-84issue
4eissn
0045-6535issn
1879-1298pii
S0045-6535(05)00120-7journal_volume
60pub_type
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