目前塑料包装方兴未艾，塑料瓶装矿泉水更是琳琅满目，如果你认为瓶装矿泉水是干净的话，那么现在就该重新考虑了。据德国歌德大学的水中生态毒物学系的马丁·瓦格勒和乔格·奥尔曼研究发现，塑料瓶装饮用水含有雌激素化学成分，不利健康。
科学家通过分析市场上正在销售的矿泉水，发现有雌激素化学成分从塑料包装中渗透到饮用水中。而且，这些化学成分在活的生物体内确实能发挥作用，能加快新西兰田螺晶胚的发育。
此发现首次证实从塑料包装中渗透出来的化学成分具有雌激素的实际功能。此研究发现发表在世界第二大学术出版巨头Springe最新出版的《环境科学与污染研究》（Environmental Science and Pollution Research）杂志上。
为了查明包装材料中的化学成分是否渗透到了食品中，科学家检测了德国在售的20个品牌的矿泉水，其中9种为玻璃瓶装的，9种是塑料瓶装的，另外二种为纸和塑料膜的复合材料包装的。科学家从这些产品中抽取水样品，之后用这些样品水做新西兰田螺的繁育实验，以确定此外源雌激素的来源和功能，结果发现有60%的样品包含有雌激素化学成分，其中33%的玻璃瓶装水包含有雌激素，而包含有雌激素的塑料瓶装水则高达78%。而且，玻璃瓶装水所含雌激素成分比塑料瓶装水少。此外，二种复合包装的饮用水品牌也都含有相当多的雌激素成分。
通过新西兰田螺繁育实验，科学家发现放在塑料瓶中繁育的田螺数量是玻璃瓶中的二倍。这些结果证明矿泉水中所含的人工合成的雌激素污染来自塑料包装所渗透的化学物质。（创赛新闻中心canspecsci.com）
推荐原始出处：
Environmental Science and Pollution Research，doi:10.1007/s11356-009-0107-7，Martin Wagner，J?rg Oehlmann
Endocrine disruptors in bottled mineralwater: total estrogenic burden and migration from plasticbottles
Martin Wagner1 and J?rg Oehlmann1
(1)Department of Aquatic Ecotoxicology, Johann Wolfgang GoetheUniversity, Siesmayerstr. 70 A, 60054 Frankfurt am Main, Germany
Abstract
Background, aim, and scope Food consumption is animportant route of human exposure to endocrine-disruptingchemicals. So far, this has been demonstrated by exposure modelingor analytical identification of single substances in foodstuff(e.g., phthalates) and human body fluids (e.g., urine and blood).Since the research in this field is focused on few chemicals (andthus missing mixture effects), the overall contamination of edibleswith xenohormones is largely unknown. The aim of this study was toassess the integrated estrogenic burden of bottled mineral water asmodel foodstuff and to characterize the potential sources of theestrogenic contamination.
Materials, methods, and results In the present study, weanalyzed commercially available mineral water in an in vitro systemwith the human estrogen receptor alpha and detected estrogeniccontamination in 60% of all samples with amaximum activity equivalent to 75.2 ng/l of the natural sex hormone17β-estradiol. Furthermore, breeding of the molluskan modelPotamopyrgus antipodarum in water bottles made of glass and plastic[polyethylene terephthalate (PET)] resulted in an increasedreproductive output of snails cultured in PET bottles. Thisprovides first evidence that substances leaching from plastic foodpackaging materials act as functional estrogens in vivo.
Discussion and conclusions Our results demonstrate awidespread contamination of mineral water with xenoestrogens thatpartly originates from compounds leaching from the plasticpackaging material. These substances possess potent estrogenicactivity in vivo in a molluskan sentinel. Overall, the resultsindicate that a broader range of foodstuff may be contaminated withendocrine disruptors when packed in plastics.