Study of minerals in inhalable matter (PM10) in ambient air is of essential implication for the improvement of air quality. Mineralogical composition of PM10 in Beijing urban air was studied by the state-of-the-art techniques such as X-ray diffraction (XR Study of minerals in inhalable matter (PM10) in ambient air is of essential implication for the improvement of air quality. Mineralogical composition of PM10 in Beijing urban air was studied by the state-of-the-art techniques such as X-ray diffraction XR