Environmental Engineering Reference
In-Depth Information
Fig. 2.2 Sand storms viewed at micro and macroscale. (a) Satellite images of the dust storm in
mainland China over the Sea of Japan and the Pacific in April 2002. (b) Dust storm in Beijing
[
27
]. (c) Approximate propagation of the dust cloud from a storm in the Gobi desert in April 1998
(models based on satellite photos) [
28
]. (d) Dust sample collected in South-Eastern Asia during a
storm in the Gobi desert, on March 16th, 2001 [
29
]. (e) Ten major dust sources in the world
[
32
]. (f) Bacteria collected from Sahara dust samples that reached North America [
30
]
Table 2.2 Approximate composition of particulate matter in the Gobi desert, in China and Korea
[
31
,
32
]
Component
Si
Al
Ca
Fe
Nanoparticle content (% mass)
24-32
5.9-7.4
6.2-12
<
1
