Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Frederiksberg, Denmark.
Environ Toxicol Chem. 2014 May;33(5):1030-4. doi: 10.1002/etc.2533. Epub 2014 Mar 12.
The present study demonstrates unequivocally the presence of the natural carcinogen ptaquiloside and its transformation product pterosin B in groundwater and surface water. Groundwater concentrations up to 0.23 nmol/L (92 ng/L) ptaquiloside and up to 2.2 nmol/L (0.47 µg/L) pterosin B were found. Of 21 groundwater samples, 5 contained ptaquiloside, exceeding the estimated threshold for drinking water (1.3-40 pmol/L). The results are critical for water abstraction in bracken-infested areas.
本研究明确表明了天然致癌物质鹿蹄草素及其转化产物 pterosin B 存在于地下水和地表水。在地下水中检测到的鹿蹄草素浓度高达 0.23 纳摩尔/升（92 纳克/升），pterosin B 浓度高达 2.2 纳摩尔/升（0.47 微克/升）。在 21 个地下水样本中，有 5 个样本含有鹿蹄草素，超过了饮用水的估计阈值（1.3-40 皮摩尔/升）。这些结果对于在蕨类植物滋生地区进行地下水抽取至关重要。
