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| 1 | 南京城郊不同土地利用类型农业土壤多环芳烃污染特征及风险评价显示文摘以南京市城郊不同土地利用类型的农业土壤(水田、菜地和林地)为研究对象,测定了16种PAHs的含量.结果表明,苊烯(Acy)在所有土壤样本中均未被检出,南京城郊农业土壤15种ω(PAHs)的范围在24.49~925.54μg·kg^(-1)之间,平均值为259.88μg·kg^(-1).PAHs含量由高到低依次为:林地>水田>菜地,总体上以高环PAHs(HMW)含量为主.不同土壤理化性质对PAHs的影响表明:土壤有机碳(TOC)和黏粒(clay)含量与PAHs存在一定的相关性,pH和全氮(TN)与PAHs无明显相关性.毒性当量法和CSI指数法表明,南京城郊农业土壤中PAHs生态风险较小,但是林地中应当给予一定的重视.增量终身癌症风险(ILCR)进行健康风险评价表明,儿童健康的威胁风险略大于成人,林地的总的致癌风险(CR)明显高于菜地和水田,仍处于可接受的范围内.对成人进行了蒙特卡洛模拟表明,确定性健康风险的风险分析低估了PAHs的健康风险.敏感性分析结果表明,对CR总方差影响最大的输入参数是暴露频率EF(占50.7%). | 张秀秀 朱昌达 王飞 魏宇宸 潘剑君 | 2023 | 环境科学2023，44，2： | 2 |
| 2 | Research on the Relationship Between Environmental and Economic Coupling Systems in Bohai Bay Area Based on a Vector Autoregression(VAR)Model显示文摘This study analyzed the impact of land-based contaminants and tertiary industrial structure on economic development in the selected Bohai Bay area,China.Based on panel data spanning 2011-2020,a vector autoregressive(VAR)model is used to analyze and forecast the short-run and long-run relationships between three industrial structures,pollutant discharge,and economic development.The results showed that the environmental index had a long-term cointegration relationship with the industrial structure economic index.Per capital chemical oxygen demand(PCOD)and per capita ammonia nitrogen(PNH_(3)N)had a positive impact on delta per capita GDP(dPGDP),while per capita solid waste(PSW),the secondary industry rate(SIR)and delta tertiary industry(dTIR)had a negative impact on dPGDP.The VAR model under this coupling system had stability and credibility.The impulse response results showed that the short-term effect of the coupling system on dPGDP was basically consistent with the Granger causality test results.In addition,variance decomposition was used in this study to predict the long-term impact of the coupling system in the next ten periods(i.e.,ten years).It was found that dTIR had a great impact on dPGDP,with a contribution rate as high as 74.35%in the tenth period,followed by the contribution rate of PCOD up to 3.94%,while the long-term contribution rates of PSW,SIR and PNH3N were all less than 1%.The results show that the government should support the development of the tertiary industry to maintain the vitality of economic development and prevent environmental deterioration. | CAO Huimin WANG Ping ZHANG Surong XU Dongpo TIAN Weijun | 2024 | Journal of Ocean University of China2024，23，2： | 0 |
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