中文字幕网伦射乱中文-超清中文乱码字幕在线观看-亚洲v国产v欧美v久久久久久-久久性网-手机在线成人av-成人六区-国产人与zoxxxx另类一一-青青草国产久久精品-蜜桃av久久久一区二区三区麻豆-成人av一区二区免费播放-在线视频麻豆-www爱爱-成人免费看片视频-性欧美老肥妇喷水-五月99久久婷婷国产综合亚洲-亚洲最色-各种含道具高h调教1v1男男-91丨porny丨国产-国产精品无码专区在线观看不卡-大香伊人

Diversified particles found in dust around Gobi desert

Source: Xinhua| 2018-06-04 16:40:09|Editor: Xiang Bo
Video PlayerClose

LANZHOU, June 4 (Xinhua) -- Chinese researchers have found huge amount of diversified particles in the dust on the Gobi desert around the border of China and Mongolia.

The atmospheric particles may have effects on ecosystems and human health, according to the researchers from Lanzhou University.

Bioaerosols, a class of atmospheric particles, range in size from nanometers up to about a tenth of a millimeter. They are made up of living and dead organisms.

Bioaerosols can be bacteria, fungi or viruses. They exist in the lower atmosphere and can cause respiratory disease.

The researchers conducted the Dust-Bioaerosol Campaign from 2014, focusing on the origin, diversity and transport of bioaerosols along dust pathways in north China, where dust events affect vast area and large number of people.

They collected air samples through a filter and extracted the DNA.

The results showed large amount of bioaerosols present in dust on the Gobi desert indicating a remarkable increases in bacteria during dust events, when the diversity of the bacteria also increased significantly.

The dust can carry many types of bacteria to downwind regions and may have an important impact on ecological environment, climate change and agriculture.

Nearly 1 billion tonnes of dust enters the atmosphere across Asia each year, according to the report. It mainly comes from the Gobi and Taklimakan deserts.

TOP STORIES
EDITOR’S CHOICE
MOST VIEWED
EXPLORE XINHUANET
010020070750000000000000011100001372294291