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环境化学  2015 

酞酸酯在空气和土壤两相间迁移情况的初步研究

Keywords: 酞酸酯,沉降通量,逸度模型,空气,土壤

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Abstract:

以东北某钢铁厂及其周边区域为研究对象,利用气相色谱-质谱(GC-MS)方法分析了空气中15种酞酸酯的浓度,并采用基于实测浓度的逸度模型探讨了酞酸酯在空气和土壤两相间的迁移方向和迁移通量.结果表明,研究区域空气中15种酞酸酯总浓度(∑PAEs)在170—487ng·m-3之间;DMP(邻苯二甲酸二甲酯)、DEP(邻苯二甲酸二乙酯)和DPP(邻苯二甲酸二戊酯)从土壤相向空气相迁移,迁移通量分别为93.5—117.0g·month-1·km-2,50.2—108.2g·month-1·km-2和9.4—15.5g·month-1·km-2;DiBP(邻苯二甲酸二异丁酯)、DBP(邻苯二甲酸二丁酯)、DEHP和DINP(邻苯二甲酸二壬酯)从空气相向土壤相迁移,迁移通量分别为530.6—1395.9g·month-1·km-2,323.8—2408.8g·month-1·km-2,1302.7—9839.6g·month-1·km-2和131.4—205.9g·month-1·km-2.

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