Braga O, Smythe G A, Schäfer A I, Feitz A J
Bioanalytical Mass Spectrometry Facility, Faculty of Medicine, University of New South Wales, Sydney, NSW 2052, Australia.
Chemosphere. 2005 Nov;61(6):827-33. doi: 10.1016/j.chemosphere.2005.04.053. Epub 2005 Jun 20.
This paper gives results from a study measuring the abundance of steroid hormones in ocean sediments in the proximity of a deep ocean sewage outfall. The outfall is discharge point for an enhanced primary sewage treatment plant and sediment samples were taken adjacent and 7 km from the outfall. All samples contained steroid estrogens at nanogram per gram levels with higher concentrations at the 7 km sampling site. The concentration of estrone ranged from (0.16-1.17 ng/g), 17beta-estradiol (0.22-2.48 ng/g) and the synthetic 17alpha-ethinylestradiol (<0.05-0.5 ng/g). The values detected correspond with estimates based on the proportion of estrogens sorbed to particles in the effluent and the expected proportion of particles originating from sewage in the ocean sediments. The results suggest that estrogens associated with the particulate fraction aggregate on contact with high ionic strength seawater and settle to the seafloor after discharge through deep ocean outfalls.
本文给出了一项研究的结果，该研究测量了深海污水排放口附近海洋沉积物中类固醇激素的含量。该排放口是一座强化一级污水处理厂的排放点，在排放口附近及7公里处采集了沉积物样本。所有样本中类固醇雌激素的含量均为每克纳克级，在7公里采样点的浓度更高。雌酮浓度范围为（0.16 - 1.17纳克/克），17β - 雌二醇（0.22 - 2.48纳克/克），合成的17α - 乙炔雌二醇（<0.05 - 0.5纳克/克）。检测到的值与基于流出物中吸附在颗粒上的雌激素比例以及海洋沉积物中源自污水的颗粒预期比例的估计值相符。结果表明，与颗粒部分相关的雌激素在与高离子强度海水接触时聚集，并在通过深海排放口排放后沉降到海底。
