Marta García Vivanco

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[1] Understanding the surface O 3 response over a ''receptor'' region to emission changes over a foreign ''source'' region is key to evaluating the potential gains from an international approach to abate ozone (O 3) pollution. We apply an ensemble of 21 global and hemispheric chemical transport models to estimate the spatial average surface O 3 response(More)
Anthropogenic N deposition poses a threat to European Mediterranean ecosystems. We combined data from an extant N deposition gradient (4.3-7.3 kg N ha⁻¹ yr⁻¹) from semiarid areas of Spain and a field experiment in central Spain to evaluate N deposition effects on soil fertility, function and cyanobacteria community. Soil organic N did not increase along the(More)
Atmospheric Chemistry and Physics Discussions This discussion paper is/has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP if available. Abstract As part of the Hemispheric Transport of Air Pollution (HTAP; www.htap.org) project, we analyze results from 16 global and hemispheric(More)
Ambient air levels of metals are included in the EC air quality standards due to their impact on human health and ecosystems. European directives 2008/50/CE and 2004/107/CE regulate lead, arsenic, cadmium, mercury and nickel ambient air levels. Air quality models constitute a powerful tool to understand tropospheric dynamics and to assign concentration(More)
Due to the complex chemistry involved in troposheric ozone formation, it is difficult to predict the impact of controlling ozone precursor emissions. For this reason, modeling has become an important tool to predict ozone levels under varying emission scenarios. In spite of the efforts focused on reducing pollutant emissions, ground-level ozone(More)