This paper analyzes the concentrations of organic matter, the group components, the compositions and distribution of aliphatics and polycyclic aromatic hydrocarbons (PAHs) from the atmospheric particulates in the Shougang district, Beijing.

Moho depth and sedimentary thickness in Capital region;

Two non-linear variations of deformation field in the Capital region were studied with the help of various deformation surveying data and the variations were found to be correlated to the change of boundary action.

The moment tensor solutions of 51 small-moderate size earthquakes occurred in the Capital Region in the year of 2004 are obtained by inverting the broadband waveform data.

The focal mechanism solutions and their characteristics for moderate and small earthquakes in Capital Area in recent years;

A study on SKS splitting beneath Capital area of China;

Small earthquake band suggested the moderate earthquake occurrence in Capital Circle Region in 2001;