城市污泥中合成麝香的分布特征

对上海市15个污水处理厂外排污泥中合成麝香的污染水平及分布特征进行了研究，发现污泥中普遍存在佳乐麝香（HHCB）和吐纳麝香（AHTN），干污泥中的平均浓度和浓度范围分别为2.92、 0.81～6.39和1.96、 0.35～3.11 mg·kg^-1；萨利麝香（ADBI）、粉檀麝香（AHMI）、酮麝香（MK）则为次要组分；这与日化产品中合成麝香的使用模式一致.污泥中8种合成麝香的总量在1.16～9.57 mg·kg^-1，与国外其它地区相比上海污泥中合成麝香的污染水平较低；污泥中合成麝香的浓度与进水中生活污水的比例、污水处理量以及污水处理工艺等因素有关.HHCB、AHTN和ADBI间存在良好的线性相关性，显示污泥中合成麝香有共同的来源特征.利用污泥中合成麝香的浓度估算了上海地区人均贡献量，并与欧洲的人均使用情况进行了比较；评价了污泥农用后对土壤可能产生的影响.

Distribution Character of Synthetic Musks in Urban Sewage Sludges

The characteristics of occurrence and distribution of 8 synthetic musks in 15 sewage sludges in Shanghai were studied.The results indicated that HHCB and AHTN were the two main components in all sludges,with the mean concentration of 2.92 mg·kg-1 (0.81-6.39 mg·kg-1) and 1.96 mg·kg-1 (0.35-3.11 mg·kg-1),respectively;and the concentrations of ADBI,AHMI,MK were less.The distributions detected in sludges are in accordance with the usage patterns in China.Total concentrations of 8 synthetic musks were ranged from 1.16-9.57 mg·kg-1,which were lower than the results in previous studies.Concentrations in sludges are influenced by ratio of domestic wastewater in influent,sewage load and sewage treatment methods.The good linear relationships among HHCB,AHTN and ADBI indicate that these components have the same source: domestic wastewater.The consumption rates of HHCB and AHTN connected to per inhabitant in Shanghai region were estimated,which are low compared with those found in European.The potential impacts on agricultural soil were also assessed.