Changchun Institute of Technology, College of Jilin Management, Changchun 130012, China.
Changchun Institute of Technology, College of Graduate Studies, Changchun 130012, China.
Sci Total Environ. 2023 Oct 10;894:165057. doi: 10.1016/j.scitotenv.2023.165057. Epub 2023 Jun 22.
Changchun, China is located in one of the world's three golden corn belts. As a key commodity grain base in China, Changchun plays a vital role in providing food security in the northeast. A total of 16 polycyclic aromatic hydrocarbons (PAHs) was analyzed to determine the influence of anthropogenic activities on the environmental quality of agricultural soils under straw burning conditions. The polycyclic aromatic hydrocarbons soil contamination severity was evaluated using the Maliszewska-Kordybach method. The results indicated that the agricultural soils of Changchun are substantial contaminated with PAHs. Petroleum, biomass, and coal combustion are the primary sources of PAH and have been determined using principal component analysis (PCA) and the isomeric ratio approach. The degree of hazard to human health was assessed using toxicity equivalence and increased lifetime cancer risk (ILCR) factors, except in localized areas during adulthood, the general risk was found to be modest. This study provides important information on PAH exposure in agricultural soils in northeast China, and the findings aid in the exploitation of straw and the mitigation of soil environmental concerns, allowing northeast China to achieve green agricultural development.
中国长春位于世界三大黄金玉米带之一。作为中国的重要商品粮基地，长春在保障东北地区粮食安全方面发挥着重要作用。本研究分析了 16 种多环芳烃（PAHs），以确定秸秆燃烧条件下人为活动对农业土壤环境质量的影响。采用 Maliszewska-Kordybach 方法评价多环芳烃土壤污染的严重程度。结果表明，长春农业土壤受到多环芳烃的严重污染。主成分分析（PCA）和同系物比值法表明，石油、生物质和煤炭燃烧是 PAHs 的主要来源。利用毒性等效和终身癌症风险（ILCR）因子评估对人体健康的危害程度，除了成年后的局部地区，一般认为风险适中。本研究为中国东北地区农业土壤中多环芳烃的暴露提供了重要信息，研究结果有助于开发秸秆和减轻土壤环境问题，使东北地区实现绿色农业发展。
