The environmental problem of marine litter is gaining even more scientific attention as more data are becoming available on its occurrence, abundance and geographical distribution. Due to its versatile chemical structure, plastic is extensively exploited in several industrial, commercial and medical applications. Approximately 50 percent of total production is made up of goods disposed of within one year of purchase and breaking down in the environment at an uncontrollable rate. Macroplastic litter (>5 mm, NOAA) often undergoes to mechanical, chemical and photo-degradation reaching microscopic size and thus harming marine organisms as it can be easily ingested or filter-fed. Given the continual fragmentation of plastic items, particle concentrations are likely to increase with decreasing size.