Minerals in atmospheric dusts are mainly derived from soils, building dusts and rising dusts in some areas.The particles are characterized by small sizes, irregular shapes and surface unevenness.

• 摘要大气粉尘中的矿物主要来源于土壤尘、建筑工地和局地扬尘，颗粒较小，一般呈不规则形状，表面凹凸不平。