Contaminants of emerging concern (CEC) are a focus in marine protection. Several CECs are released with wastewater effluents to coastal environments and their offshore occurrence has been recently documented. Routine monitoring is key for implementing marine protection acts, however infrastructural, financial, and technical limitations hinder this task along broad spatial transects. Here we show the efficacy of a new infrastructure enabling unmanned sampling of surface water from ships of opportunity in providing reliable and cost-effective routine monitoring of CECs along a Europe-Arctic transect. The distribution and long-range transport of several pharmaceuticals and personal care products, artificial food additives, and stimulants were assessed. Validation of operations through strict procedural and analytical quality criteria is presented. A framework to estimate a compound-specific spatial range (SR) index of marine long-range transport based on monitoring results and information on source spatial distribution, is introduced. Estimated SR values ranged 50–350 km depending on compound, yielding a ranking of long-range transport potential which reflected expectations based on degradation half-lives. SR values were used to calculate prior maps of detection probability that can be used to plan future routine monitoring in the region.

新兴关注的污染物 (CEC) 是海洋保护的重点。一些 CEC 随废水排放到沿海环境中，最近记录了它们在海上的发生。日常监测是实施海洋保护法案的关键，但是基础设施、财务和技术限制阻碍了这项任务在广阔的空间横断面上。在这里，我们展示了一种新基础设施的功效，该基础设施能够对机会船只的地表水进行无人采样，从而为欧洲-北极横断面的 CEC 提供可靠且具有成本效益的常规监测。评估了几种药品和个人护理产品、人工食品添加剂和兴奋剂的分布和远程运输。提出了通过严格的程序和分析质量标准验证操作。介绍了一种基于监测结果和源空间分布信息估计海洋远程传输复合特定空间范围（SR）指数的框架。根据化合物的不同，估计的 SR 值在 50-350 公里范围内，产生了反映基于降解半衰期的预期的远程传输潜力排名。SR 值用于计算检测概率的先前地图，可用于规划该地区未来的常规监测。产生一个反映基于降解半衰期的预期的远距离传输潜力排名。SR 值用于计算检测概率的先前地图，可用于规划该地区未来的常规监测。产生一个反映基于降解半衰期的预期的远距离传输潜力排名。SR 值用于计算检测概率的先前地图，可用于规划该地区未来的常规监测。