Spatial Distribution of Polycyclic Aromatic Hydrocarbons in Soils around the Coal Waste Rock Dumps

Abstract:

We select a large coal waste rock dumps in Guangxi Heshan , study the characteristics of the distribution of polycyclic aromatic hydrocarbons (PAHs) in its surrounding soil and carry on a soil quality evaluation. Soil samples were collected in different distance and different depth from the dumps. After drying and filtrating the samples, we use the gas chromatography - mass spectrometry (GC - MS) technology for quantitative analysis of 16 kinds of priority pollutions of PAHs. The results show that in the plane, from the near to the distant, the content of PAHs in soil is from much to little. In vertical, from shallow to deep, the content of PAHs degressive changes. And the trend of change is from fast to slow in vertical and level. The plane distribution of PAHs in soil is mainly controlled by wind direction and slope, vertical distribution is controlled by its solubility in water and soil properties.Many kinds of PAHs in soils out of limit, which is poor soil.The 6 kinds of heavy ring PAHs which is carcinogenic is distributed in 5~15 cm of the topsoil.

• Periodical: Advanced Materials Research (Volumes 955-959)
• Pages: 981-986
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.955-959.981
• Online since: June 2014
• Authors: Li Ming Zhang, Jian Wei Zhou*, Bo Chai, Hai Yan Gao, Yong Hui Wang, Qi Rong Li
• Keywords: Coal Waste Rock Dumps, Polycyclic Aromatic Hydrocarbons (PAHs), Spatial Distribution Characteristics

References

[1] Sungwoo Ahn, David Werner, Richard G. : Water Research, 2008, 42(12): 2931-2942.

[2] Jian Yang, Jiajun Chen, Xinyi Wang : Journal of Agro- Environment Science. (In Chinese)2008, 27(3): 873- 878.

[3] Shuqin Liu, Peng Wang : Environmental Protection. (In Chinese), 1999, 5: 42-45.

[4] Min Yue, Xuexin Gu, Ruohua Zhu: Journal of Capital Normal University(Natural Science Edition). (In Chinese) 2003, 24(3): 40-44.

[5] Yue Cheng, Guoying Sheng, Jiamo Fu : Environmental Chemistry. (In Chinese)1996, 15(24): 360 -365.

[6] Zheng Lin, Bixian Mai, Gan Zhang, et al. : Environmental Chemistry. (In Chinese)1999, 18(2): 116-121.

[7] Jing Chen, Xuejun Wang, Shu Tao : Research of Environmental Sciences. (In Chinese)2005, 18 (4): 79-83.

[8] Chunyan Xiao, Chao Yi, Tongqian Zhao, et al. : Acta Scientiae Circumstantiae. (In Chinese)2008, 28(8): 1579-1585.

[9] Richnow H.H. , Eschenbach A. , Mahro B. , et al. : Chemosphere, 1998, 36(4): 2211-2224.

[10] Jing Chen, Xuejun Wang, Shu Tao, et al. : Acta Scientiae Circumstantiae. (In Chinese)2004, 24(2): 286-290.

[11] Jones K.C. , Stratford J.A. , Waterhouse K S. : Environ SciTechnol, 1989, 23: 540-2550.

[12] Nisbet Jct, Lagoy P.K. : Regulatory Toxicology and Pharmacology, 1992, 16(3): 290-300.