Quantification of microplastic in fillet and organs of farmed and wild salmonids- a comparison of methods for detection and quantification

Microplastic (MP) is of growing concern to environmental and human health. This study investigated three analytical approaches to measure MP in tissues of salmonids. The study aimed to 1) determine and demonstrate the sensitivity of current analytical methods for MP in salmon tissues for the three different quantitative methods, 2) compare the utility of the different methods in terms of cost, time and sensitivity 3) quantify MP in a relevant selection of tissues of farmed and wild salmon in order to establish likely indicator organs for future documentation purposes. We here present the results, compare the methods and discuss uncertainties and needs for further method development.