世界气象组织：2017年世界气象组织空中尘埃公告（英文版）

For countries in and downwind of arid regions, airborne sand and dust presents serious risks to the environment, property and human health. Impacts on health include respiratory and cardio-vascular problems, eye infections and, in some regions, diseases such as meningitis and valley fever. Dust can carry irritating spores, bacteria, viruses and persistent organic pollutants. It can also transport nutrients to the oceans and affect marine biomass production. Other impacts include negative effe