[Chemical Compositions and Sources of -Alkanes and Saccharides in PM from Taian City During the Summer].

To investigate the variations and sources of -alkanes and sugars in Taian City during summer, PM samples were collected from July 22 to August 19, 2016. The identified -alkane and sugar sources were investigated using a principal component analysis (PCA) multiple linear regression (MLR) model and a backward trajectory model. The results showed that the mass concentrations of PM during summer were (37.

[Source Analysis and Health Risk Assessment of PAHs in PM During Winter in Liaocheng City].

To investigate the mass concentrations, sources, and health effects of polycyclic aromatic hydrocarbons (PAHs) in ambient particulate matter (PM) in Liaocheng City during winter, 14 types of PAHs in PM were determined from January to February of 2017. The sources of the PAHs were analyzed by using diagnostics ratios and the principal component analysis (PCA)-multiple linear regression (MLR) model,and the health risk of PAHs was assessed by BaP equivalent concentrations (BaP) and incremental lifetime cancer risk (ILCR). The results showed that the mass concentrations of PAHs in PM during winter were (64.

[Diurnal Variations and Source Analysis of Water-soluble Compounds in PM During the Winter in Liaocheng City].

To investigate the diurnal variations and sources of water-soluble compounds in Liaocheng City, PM samples were collected between January and February 2017. The PM samples were analyzed for the compositions, concentrations, and sources of water-soluble inorganic ions, oxalic acid, and levoglucosan. The sources of these chemical compound were investigated using principal component analysis (PCA) and multiple linear regression (MLR) modeling.

[Pollution Characteristics and Source Analysis of -alkanes and Saccharides in PM During the Winter in Liaocheng City].

To investigate molecular composition, mass concentrations, and sources of -alkanes and sugars which are adsorbed in ambient particulate matters in Liaocheng City during winter, PM samples were collected from January 17 to February 15, 2017 at Liaocheng University. 19 kinds (C-C) of -alkanes and 10 kinds of sugars were determined using GC-MS. The identification of -alkane and sugar sources were investigated using principal component analysis (PCA).