Abstract：
Significant quantities of salmon are processed daily in the industry\'s indoor facilities. Occupational exposure contributes to an individual\'s exposome. The aim of this study is to obtain knowledge about potential exposure to viable airborne species of bacteria and fungi as related to workstations in the salmon processing industry. The study was conducted in nine salmon plants along the Norwegian coast over one or two days with a one-year interval. The MAS100 was used for sampling and MALDI-TOF MS for species identification. The geometric mean concentrations of bacteria and fungi were 200 CFU/m3 and 50 CFU/m3, respectively, with the highest concentrations of bacteria found in slaughtering areas and fungi in trimming of fillets. In total 125 gram-negative and 90 gram-positive bacterial and 32 different fungal species were identified. Some genera were represented by several species e.g. Chryseobacterium (15 species), Flavobacterium (13 species), Microbacterium (12 species), Pseudomonas (37 species), and Psychrobacter (13 species). Risk class 2 (RC2, human pathogens) were found in all types of workstations and plants. Seventeen bacterial species belong to RC2, some were fish pathogens, food spoilage bacteria, or species causing foodborne disease. Among fungi, Aspergillus nidulans was frequently detected across different workstations and plants. In conclusion, bacterial and fungal concentrations were low. Fish and sea-related bacteria were found along the salmon processing line. Bacterial concentrations and species compositions differ between workstations. No particular bacterial or fungal species constituted a large fraction of all airborne species. Based on the presence of human pathogens, using protective gloves is important for the workers. The presence of human and fish pathogens and food spoilage bacteria reveals air as a transmission route for bacteria, potentially affecting workers, consumers, fish, and hygiene of processing equipment. To limit the spread of these bacteria an interdisciplinary cooperation with a One Health perspective may be relevant.
摘要：
该行业的室内设施每天处理大量的鲑鱼。职业暴露有助于个人的暴露。这项研究的目的是获得有关鲑鱼加工业中与工作站相关的可行的空气传播细菌和真菌物种的潜在暴露知识。这项研究是在挪威海岸的九种鲑鱼植物中进行的，为期一两天，间隔一年。MAS100用于取样,MALDI-TOFMS用于物种鉴定。细菌和真菌的几何平均浓度分别为200CFU/m3和50CFU/m3,在屠宰区域发现的细菌浓度最高，在修剪鱼片时发现的真菌浓度最高。总共鉴定了125个革兰氏阴性和90个革兰氏阳性细菌和32种不同的真菌物种。一些属由几个物种代表，例如金杆菌属（15种），黄杆菌（13种），微杆菌（12种），假单胞菌（37种），和嗜冷杆菌（13种）。在所有类型的工作站和植物中都发现了风险等级2（RC2，人类病原体）。17种细菌属于RC2，一些是鱼类病原体，食物腐败细菌，或导致食源性疾病的物种。在真菌中,在不同的工作站和植物中经常检测到构巢曲霉。总之,细菌和真菌浓度较低。在鲑鱼加工线上发现了鱼类和与海洋有关的细菌。工作站之间的细菌浓度和物种组成不同。没有特定的细菌或真菌物种构成所有空气传播物种的大部分。基于人类病原体的存在，使用防护手套对工人来说很重要。人类和鱼类病原体和食物腐败细菌的存在表明空气是细菌的传播途径，可能影响工人，消费者,鱼,和加工设备的卫生。为了限制这些细菌的传播，与“一个健康”观点的跨学科合作可能是相关的。
