Passive sampling has been shown to be a suitable procedure to assess the risk of contaminated sediments through the measurement of freely dissolved concentrations (C_Free) and remedial actions involving amendments such as activated carbon (AC). Here we report results of the application of simple, solvent-free solid phase micro extraction methodology (SPME) to assess the performance of different materials for the remediation of selected Norwegian harbour sediments contaminated with polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs). AC amendments enabled a reduction of the availability of PAHs and/or PCBs by a factor of ten to over one hundred in Aker Brygge sediments (Oslo) and sediments from Elkembukta, impacted by industrial emissions of PAHs with/from coal tar pitch. Another material, anthracite, slightly less effective in this set of experiment than AC, showed nonetheless great promise as capping material. The SPME data are put in perspective with equilibrium measurements of C_Free for PAHs and organochlorines with silicone rubber in other Elkembukta sediments collected in the vicinity of those used for the remediation experiments. A reduction of sediment C_free for pyrene, benzo[a]pyrene and benzo[ghi]perylene in inner Elkembukta sediment from on average 407, 6.3 and 0.82 ng L^-1 to values of/or below 1.3, 0.15 and 0.076 ng L^-1, respectively can be expected upon remediation with AC. For the outer, less contaminated Elkembukta sediment, Cfree would reduce from 36, 0.81 and 0.13 ng L^-1 to value of or below 0.06, 0.03 and 0.005 ng L^-1 for these three compounds, respectively. Differences in pattern of PAH and organochlorine contamination of inner and outer Elkembukta sediments are discussed.

已经证明，通过测量自由溶解的浓度（C _Free），被动采样是评估污染沉积物风险的合适程序。）以及涉及修正案（例如活性炭（AC））的补救措施。在这里，我们报告了应用简单，无溶剂的固相微萃取方法（SPME）评估不同材料对选定的被多环芳烃（PAHs）和多氯联苯（PCBs）污染的挪威港口沉积物的修复性能的结果。 。AC修正案使Aker Brygge沉积物（Oslo）和Elkembukta沉积物中的PAH和/或PCBs的可用性降低了十分之十至一百倍，这受到了煤焦油沥青产生的PAHs工业排放的影响。在这组实验中，另一种无烟煤材料的效果比AC稍差，但无毒材料有望作为覆盖材料。将SPME数据与C的平衡测量结果放在一起在修复实验所用沉积物附近收集的其他Elkembukta沉积物中，可_免费使用PAHs和有机氯和硅橡胶。沉积物的C的减少_游离芘，苯并[a]芘和苯并[GHI]苝在内Elkembukta沉积物从平均407，6.3和0.82纳克大号^-1至/或低于1.3，在0.15和0.076纳克升值^-使用AC修复后，可以分别预期¹。对于污染程度较低的外部Elkembukta沉积物，Cfree将从36、0.81和0.13 ng L ^-1降低到0.06、0.03和0.005 ng L ^-1或以下。分别用于这三种化合物。讨论了内部和外部Elkembukta沉积物中PAH和有机氯污染方式的差异。