The volatile organic compounds source profiles of motor vehicle exhaus t, gasoline vapor and liquid gasoline were determined by averaging the ratios of individual VOC species concentration to the total concentrion of all VOC specie s measured.

Study on the characteristics of PAHs source profile of coke plant.;

To evaluate the contribution of coal combustion to PAHs to airborne particulate using CMB receptor model,a study of PAHs source profile for coal combustion is necessary.

Ethyl acetate was found to be a remarkable molecular marker in the VOC source profile of PU synthetic leather industry with the highest percentage of total VOCs up to 36.

The comparative study showed that the spectral composition of the solar radiation UVR∶PAR∶NIR was 5.

[Results] Bovine and sheep materials were not detected in all 7 samples of homemade cosmetic, while in 13 samples of imported cosmetic,bovine material of 3 samples was positive, but the sheep material was not detected.

[Objective] In order to control the spread of bovine spongiform encephalopathy and scrapie by cosmetic in China, bovine and sheep materials from imported and homemade cosmetic were determined.