Environmental Chemistry Department, Institute of Environmental Assessment and Water Research (IDÆA), Spanish Council of Scientific Research (CSIC) , C/Jordi Girona 18-26, 08034, Barcelona, Spain.
Natural Processes Monitoring Team, Doñana Biological Station (EBD-CSIC) , C/Américo Vespucio s/n, 41092 Seville, Spain.
Environ Sci Technol. 2017 Oct 3;51(19):10983-10990. doi: 10.1021/acs.est.7b03300. Epub 2017 Sep 20.
The present study uses bird eggs of seven wild species as a biomonitoring tool for sunscreens occurrence. Seven UV filters (UV-Fs), including 3 hydroxy-metabolites of oxybenzone (benzophenone 3, BP3) were characterized in unhatched eggs from Doñana Natural Space (Spain). High frequency of detection was observed for all UV-Fs, ranging from 95% to 100%. The oxybenzone metabolite 4-hydroxybenzophenone (4HB) was ubiquitous at concentrations in the range 12.0-3348 ng g dry weight (dw). The parent compound, oxybenzone, was also present in all samples at lower concentrations (16.9-49.3 ng g dw). Due to the three BP3's metabolites, benzophenone 1 (BP1), 4HB, and 4,4'-dihydroxybenzophenone (4DHB) presence in unhatched eggs, it can be inferred that parent compounds are absorbed into the bird through the upper gut and the OH-derivatives formed are transferred by the mother to the egg before the lying. White stork (Ciconia ciconia) and western marsh harrier (Circus aeruginosus) were the most contaminated species, with mean total UV-Fs concentrations of 834 and 985 ng g dw, respectively. Results evidenced that biomagnification process across the bird species studied cannot be ruled out.
本研究以七种野生鸟类的卵为生物监测工具，研究防晒霜的存在情况。在多纳纳自然空间（西班牙）的未孵化卵中，鉴定出七种紫外线滤光剂（UV-Fs），包括羟苯酮 3 的三种代谢物（苯并酮 3，BP3）。所有 UV-Fs 的检测频率都很高，范围从 95%到 100%。羟苯酮代谢物 4-羟基二苯甲酮（4HB）在 12.0-3348ng g 干重（dw）的浓度范围内普遍存在。在所有样品中，母体化合物羟苯酮也以较低的浓度（16.9-49.3ng g dw）存在。由于在未孵化的卵中存在三种 BP3 的代谢物，即苯并酮 1（BP1）、4HB 和 4,4'-二羟基二苯甲酮（4DHB），可以推断出母体化合物通过上消化道被鸟类吸收，然后在产卵前由母体转移到卵中。白鹳（Ciconia ciconia）和西方沼泽鹞（Circus aeruginosus）是污染最严重的物种，其总 UV-Fs 浓度分别为 834 和 985ng g dw。研究结果表明，不能排除在所研究的鸟类物种中发生生物放大的过程。
