Cruise ship wastewater discharges are pollution sources towards the marine environment that are poorly characterized. In this study, wastewater samples from cruise ships have been obtained during repair works in a shipyard. Different organic pollutants have been analyzed and their concentrations were similar to those in urban wastewaters for pharmaceuticals and fragrances, but higher for UV filters and PAHs. For the first time, cypermethrin, a pesticide highly toxic towards aquatic species, was found at relevant concentrations (>1 µg L^-1). The faecal microorganisms were for all parameters higher than 10^4 CFU 100 mL^^-1, which together with the presence of antibiotic compounds in wastewater (e.g., triclosan), could potentially lead to the generation of antibiotic resistance bacteria (ARB). The historical position of cruise ships, determined from the Automatic Identification System (AIS), were used to define the time ships were underway, at port, or in repair. From ship's passenger and crew load, and from estimates of discharges the total volume of wastewater produced by these ships (371,000 m^3 year^-1) and the average flow (0.15 ± 0.03 m^3crew^-1 day^-1) were calculated.

游轮废水排放是对海洋环境的污染源，其特征不明确。在这项研究中，在造船厂的维修工作中从游轮中获得了废水样本。已经分析了不同的有机污染物，其浓度与城市废水中用于药物和香料的污染物相似，但对于紫外线过滤器和多环芳烃则更高。首次发现氯氰菊酯（对水生物种有剧毒的农药）的相关浓度（> 1 µg L ^ -1）。粪便微生物的所有参数均高于10 ^ 4 CFU 100 mL ^ ^-如图1所示，其与废水中的抗生素化合物（例如三氯生）一起可能潜在地导致抗生素抗性细菌（ARB）的产生。从自动识别系统（AIS）确定的游轮历史位置被用来定义游轮的航行时间，港口时间或维修时间。从船上的乘客和船员的负荷，以及从排放量的估算，这些船产生的废水总量（371,000 m ^ 3年^ -1）和平均流量（0.15±0.03 m ^ 3机组^ -1天^ -1）被计算了。