תפריט נגישות
ניגודיות עדינהניגודיות גבוהה
מונוכרום
הדגשת קישורים
חסימת אנימציה
פונט קריא
סגור
איפוס הגדרות נגישות
להורדת מודול נגישות חינם תפריט נגישותניגודיות עדינהניגודיות גבוההמונוכרוםהדגשת קישוריםחסימת אנימציהפונט קריאסגוראיפוס הגדרות נגישותלהורדת מודול נגישות חינם|
Brenig, L., Carati, D., Vanderstraeten, P., Lénelle, Y., Meurrens, A. and Offer, Z.Y. |
A possible temporal correlation between agricultural work periods in the agrarian region surrounding the city of Brussels, Belgium, and the characteristics of airborne particles measured in Brussels' urban area was investigated. In this study a total of 37 chemical elements were found in the airborne particles. During most of the wheat cropping period, high amounts of Al, Ba, Cl, Cu, Fe, S, Sb, Si, Zr, Ni and Sr were found. The elements Al, Ba, Cu, Fe, Na, Pb, Sb and Si were most prevalent during the culturing of sugar-beet and endive. For the wheat crop, the largest diversity of chemical elements (i.e. the number of different elements present in the airborne particles collected at a given time and place) was obtained during the 'after-sowing period' and the lowest diversity was recorded during the 'sowing period'. For sugar-beet and endive crops, the maximum diversity was found during the 'before-harvest period' and the lowest diversity during the 'after-harvest period'. Our results lead to the preliminary conclusion that most of the airborne particles in Brussels' urban area are produced from outside sources, and reveals a strong correlation with specific phases of agricultural activity in the surrounding area.
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Brenig, L., Carati, D., Vanderstraeten, P., Lénelle, Y., Meurrens, A. and Offer, Z.Y. |
A possible temporal correlation between agricultural work periods in the agrarian region surrounding the city of Brussels, Belgium, and the characteristics of airborne particles measured in Brussels' urban area was investigated. In this study a total of 37 chemical elements were found in the airborne particles. During most of the wheat cropping period, high amounts of Al, Ba, Cl, Cu, Fe, S, Sb, Si, Zr, Ni and Sr were found. The elements Al, Ba, Cu, Fe, Na, Pb, Sb and Si were most prevalent during the culturing of sugar-beet and endive. For the wheat crop, the largest diversity of chemical elements (i.e. the number of different elements present in the airborne particles collected at a given time and place) was obtained during the 'after-sowing period' and the lowest diversity was recorded during the 'sowing period'. For sugar-beet and endive crops, the maximum diversity was found during the 'before-harvest period' and the lowest diversity during the 'after-harvest period'. Our results lead to the preliminary conclusion that most of the airborne particles in Brussels' urban area are produced from outside sources, and reveals a strong correlation with specific phases of agricultural activity in the surrounding area.
