An international team of scientists is studying the problem of pollution and dust in Asia.

An international team of scientists is studying the problem

of pollution and dust in Asia. One hundred thirty scientists

from twelve countries have gathered in the western Pacific

area to observe thick dust storms. They will observe the

dust storms which they mix with some of the world's heaviest 【M1】 ______

pollution. The thickest dust storms in recent years

reported in Beijing, China and other Asian cities last spring. 【M2】 ______

The dust storms come from deserts in China and Mongolia. 【M3】 ______

This year, similar dust storms have began moving east 【M4】 ______

toward large Asian cities and the northwest Pacific Ocean.

The dust storms happen in winter over deserts high 【M5】 ______

below sea level. In the spring, the storms trove east, over large

dries in China, Japan and Korea. By summer, rainstorms break

up the dust and help increase pollution in the air. 【M6】 ______

The scientists plan observe the dust storms through the 【M7】 ______

middle of May. They are using research ships, airplanes, satellites

and instrument on the ground to gather information. 【M8】 ______

Aerosols(悬浮颗粒) are very small particles in the air.

The scientists are studying aerosols that contain sulfate(硫酸

盐) and carbon are produced by the burning of soft coal, wood 【M9】 ______

and plants. Barry Hubert of the University of Hawaii is the leading

investigators for the study. He says developing nations in Asia 【M10】 ______

use a mixture of fuels that are not used in other areas.

【M1】