Assessment of ozone variations and meteorological effects in an urban area in the Mediterranean Coast

Ozone concentrations, flux and potential effect on yield during wheat growth in the Northwest-Shandong Plain of China

“…The variation of M7 was similar to M24, and the final M7 during the growing season was 45.1 ppbV. The seasonal changes of O 3 concentration may be related to emissions of VOC and NO x , which are also affected by radiation and temperature (Dueñas et al, 2002;Cape, 2008).…”

“…For a given location, the O 3 concentration variation was dependent on meteorological variables, such as global radiation, temperature, and wind speed (Dueñas et al, 2002;Cape, 2008;David and Nair, 2011). Because the variations of O 3 concentration and radiation were out-of-phase (Fig.…”

The Interaction between Air Quality and Meteorological Factors in an Arid Environment of Makkah, Saudi Arabia

“…High levels of particulate matter with aero-dynamic diameter of 10 micron or less (PM 10 ) in Makkah, especially during the Hajj period have been previously reported by several authors [2]- [6]. The reasons for the high PM 10 concentrations are most probably high volume of traffic, construction work, re-suspension of particles, windblown dust and sand particles and geographical conditions (Arid Regions) [5]. Most of the area of Saudi Arabia is made of deserts, which leads to a high concentration of dust in the air as wind blows onto inhabited areas from the neighboring desert lands [7].…”

Implementation of a module for risk of ozone impacts assessment to vegetation in the Integrated Assessment Modelling system for the Iberian Peninsula. Evaluation for wheat and Holm oak

“…According to Alonso et al (1999) and Fumagalli et al (1999), in Southern Europe, namely Spain and Italy, yield losses predicted through the flux approach are smaller than losses indicated by the ozone response functions based on the daylight AOT40 index proposed by Fuhrer et al (1997). The highest ozone concentrations in these areas occur when sunny and dry weather provides favourable conditions for the formation of ozone (Dueñas et al, 2002;Garcia et al, 2005). However, under these conditions non-irrigated vegetation experiences high soil moisture deficits (SMDs) resulting in reduced stomatal conductance and hence low ozone flux (Emberson et al, 2000).…”