1. An active cold current from Mongolia could easily sweep the dry dust and sand to Inner Mongolia and north China.
2. The central government began working to control sources of sand and dust in June 2000 to prevent continuous sandstorms and dusty weather in North China.
3. Covering farms with straw after harvesting could effectively stop dust from rising and thus reduce the sand and silt that is blow into rivers.
4. To keep out the dust and sand that blows through this city constantly, they've had to put up plastic sheets.
5. Pagoda trees and grass act as a protective shield for the city from dust and sand.
6. It is meant to act as a protective screen and shield the city from sand and dust from neighboring cities.
7. Too much sand and dust in your system can cause illness and affect your respiratory system.
8. They play a positive role in shielding northern and eastern agricultural ecosystems against sand and dust storms.
9. Dust and sand have swept Beijing and a large swathe of the country.
10. Desertified pastures have become the major source of sand and dust storms.