Risk assessment and countermeasures of BTEX contamination in soils of typical pesticide factory

• Published in: Huanjing kexue Vol. 35; no. 6; p. 2272
• Main Authors: Tan, Bing, Wang, Tie-Yu, Li, Qi-Feng, Zhang, Hai-Yan, Pang, Bo, Zhu, Zhao-Yun, Wang, Dao-Han, Lü, Yong-Long
• Format: Journal Article
• Language: Chinese
• Published: China 01.06.2014
• Subjects: Agriculture; Benzene Derivatives - analysis; China; Cities; Dust - analysis; Environmental Monitoring; Environmental Pollution - adverse effects; Gas Chromatography-Mass Spectrometry; Industry; Pesticide Residues - analysis; Pesticide Residues - standards; Risk Assessment; Soil - chemistry; Soil Pollutants - analysis; Toluene - analysis; Xylenes - analysis
• ISSN: 0250-3301
• DOI: 10.13227/j.hjkx.2014.06.032

Soil samples around three representative pesticide factories were collected in Zhangjiakou City, Hebei Province, and analyzed to identify their pollution characteristics and health risk of BTEX by purge-and trap and gas chromatography/mass spectroscopy method. Total concentrations of BTEX in soils in Plant A, B and C ranged from 673.50 to 32 363.50 ng x g(-1), nd to 6 461.80 ng x g(-1) and 461.70 to 8 740.80 ng x g(-1), respectively. Concentrations of detected toluene (4 619.50-7 234.30 ng x g(-1)) and ethylbenzene (364.60-7 944.60 ng x g(-1)) had exceeded the Canadian guidelines for industrial land (370 ng x g(-1) and 82 ng x g(-1)), and concentration of xylene (19 799.40 ng x g(-1)) in dust in production area of Plant A was larger than the Dutch soil intervention value (17 000 ng x g(-1)). While concentrationsn of BTEX around Plant A (Region I ) and Plant B and C (Region II) ranged from nd to 645.81 ng x g(-1), and nd to 309.13 ng x g(-1), respectively, which were below the Canadian guidelines for agricultu