In recent years, a new research field regarding microscopic plastic fragments in the marine environment, called microplastics, have emerged. Microplastics derives from anthropogenic sources such as sewage treatment plants and the fragmentation of macro plastic. There are a limited number of studies regarding micro plastics, especially concerning Swedish waters, indicating the need for more research. In this study sediment samples were collected from the littoral area at seven different locations as well as one sediment sample from a deep sea at one of the sites. The aim is to investigate the concentration and distribution of microplastics along the Swedish west coast. A correlation analysis was performed between microplastics and two variables; grain size and salinity. The results showed that the highest concentration of micro plastics were found at the north part of the Swedish west coast and decreased the farther south the samples were taken. The results showed a strong correlation between microplastics and high salinity R 2 = 0, 61, and a correlation was seen between micro plastics and coarse sand with a R2 = 0.38. The results contribute to the understanding of how micro plastics are distributed in marine environment along the Swedish west coast. The researchers behind this study calls for sampling of all marine zones to further understand how microplastics are concentrated and distributed in the marine environment