选取36种日用塑料包装物作为研究对象,采用方差分析和多重比较检验等统计方法,对其所含6种优先控制污染物—邻苯二甲酸酯(PAEs)的分布特点进行统计分析。结果表明,仅有2.78%的塑料样品没有PAEs被检出,50%的样品含有2种或2种以上PAEs;其中邻苯二甲酸二丁酯(DBP)和邻苯二甲酸二(2-乙基)己酯(DEHP)分布最为广泛,存在于97.22%的样品中,塑料包装袋的来源、色彩与其∑PAEs具有较高的关联性,菜市场包装袋的∑PAEs显著高于超市塑料包装袋和一次性塑料包装袋的∑PAEs;彩色塑料包装袋中∑PAEs高于非彩色塑料包装袋;在材质中加入颜料的塑料包装袋其∑PAEs明显高于表面彩绘的塑料包装袋。
Phthalic acid esters (PAEs) are one kind of important environmental hormone, which can entered into environment with the usage and disposal of plastics products and possessed higher environmental and health risks. Selecting 36 kinds of daily used plastic packages as research object, adopting statistic techniques, such as ANOVA and multiple comparison test, 6 kinds of superior control PAEs distribution characters was analyzed statically. PAEs were not examined only in 2.78% of the plastic samples, and 50% of these samples contained two or more kinds of PAEs, in which the distribution of dibutyl phthalate (DBP) and di(2-ethylhexyl)phthalate (DEHP) was most extensive, with 97.22% existed in these sample. The source and color of plastic packages had higher relation properly with their ∑PAEs. ∑PAEs in food market packages was higher markedly than that in supermarket plastic packages and one-off plastic packages. The ∑PAEs in color packages was higher than in non-color packages; the ∑PAEs plastic in packages with paint added in material was higher obviously than those with paint drawn on surface.