Abad E, Martínez K, Planas C, Palacios O, Caixach J, Rivera J
Mass Spectrometry Laboratory, Department of Ecotechnologies, IIQAB-CSIC, Jordi Girona 18, 08034 Barcelona, Spain.
Chemosphere. 2005 Dec;61(9):1358-69. doi: 10.1016/j.chemosphere.2005.03.018.
A comprehensive characterization of five of the seven priority organic pollutants listed in the draft of the "Working document on sludge" [EU, 2000. Working Document on Sludge 3rd Draft. Unpublished, 19 p] has been carried out during 2001-2003 in sludge samples from Catalonia (NE Spain). One hundred and thirty-nine samples belonging to 20 Waste Water Treatment Plants (WWTPs), seven sludge treatment (thermal drying) and three composting sludge plants were taken in order to determine the concentration of polychlorinated dibenzo-p-dioxins and -furans (PCDD/Fs), di-2-(ethyl-hexyl)-phthalate (DEHP), nonylphenol and nonylphenol ethoxylates with one or two ethoxy groups (NPE), polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs). PCDD/F concentrations were in general lower than the 100 ng I-TEQ/kg limit suggested in the above-mentioned document. In the same way, 98.5% for PCBs, 97% for PAH and 92.8% for DEHP of the samples presented concentrations lower than 0.8 mg/kg dm, 6 mg/kg dm and 100 mg/kg dm, respectively. In contrast, the vast majority of samples contained NPE concentrations much higher than 50mg/kg dm limit. The values ranged from 14.3 to 3150 mg/kg dm (median value=286.6 mg/kg) being composted sludge samples the less contaminated ones (17.9-363.4 mg/kg dm; median value=89.3 mg/kg). Special attention should be paid to the Catalan sludge NPE contamination owing to the high levels detected.
2001年至2003年期间，对来自加泰罗尼亚（西班牙东北部）的污泥样本中的“污泥工作文件”[欧盟，2000年。污泥工作文件第三稿。未发表，19页]中列出的七种优先有机污染物中的五种进行了全面表征。采集了来自20个污水处理厂（WWTP）、7个污泥处理厂（热干燥）和3个堆肥污泥厂的139个样本，以测定多氯二苯并对二恶英和多氯二苯并呋喃（PCDD/Fs）、邻苯二甲酸二（2-乙基己基）酯（DEHP）、壬基酚和具有一个或两个乙氧基的壬基酚乙氧基化物（NPE）、多环芳烃（PAHs）和多氯联苯（PCBs）的浓度。PCDD/Fs浓度总体上低于上述文件中建议的100 ng I-TEQ/kg限值。同样，98.5%的PCB样本、97%的PAH样本和92.8%的DEHP样本的浓度分别低于0.8 mg/kg干物质、6 mg/kg干物质和100 mg/kg干物质。相比之下，绝大多数样本中的NPE浓度远高于50mg/kg干物质的限值。其值范围为14.3至3150 mg/kg干物质（中值=286.6 mg/kg），堆肥污泥样本污染程度最低（17.9 - 363.4 mg/kg干物质；中值=89.3 mg/kg）。由于检测到的高含量，应特别关注加泰罗尼亚污泥的NPE污染问题。
