Publications by authors named "Zi-Shu Xia"
In order to ascertain the distribution characteristics of soil heavy metal pollution and main pollution sources in a small watershed in the southern mountainous area of Ningxia and to ensure the quality of the soil environment, the contents of heavy metals Pb, Ni, Zn, Mn, Cu, Cr, and Cd in 260 surface soil samples (0-20 cm) were collected and determined. Based on the soil background value in Ningxia, the soil heavy metal pollution status and potential ecological risk were evaluated through the single factor index, Nemera composite index, and potential ecological risk index, and the method of combining positive definite matrix factor analysis (PMF) and Kriging interpolation was used to analyze the soil heavy metal spatial distribution and source. The results showed that the average contents of (Pb), (Ni), (Zn), (Mn), (Cu), (Cr), and (Cd) were 31.
View Article and Find Full Text PDFArticle Synopsis
- The study examines PAH pollution in urban soils in Shizuishan City, analyzing 156 surface soil samples to understand its spatial distribution across various urban functional areas.
- Results show that traffic areas have the highest PAH levels (1217.61 ng·g), followed by industrial and park areas, with most samples indicating low to no pollution risk.
- The main sources of PAHs were identified as traffic emissions and coal combustion, suggesting that urban planning and pollution control could be informed by these findings to improve soil health.