Microplastic huge number of applications have advantages of their

Microplastic sources :It is important for us to recognize two sorts of microplastic based on its original,First, we have the Primary microplastics: This type of microplastic gets discharged directly into the environment as small particulates less than 5 mm.  These primary particles might be discharged from discrete point sources, for example; plastic processing plants (creation pellets or powders for injection molding). The second type of microplastic is known as Secondary microplastic: The secondary sources are microplastics produced by fragmentation and degradation (the breaking down and weathering) of macroplastics. This includes fibers from manufactured textiles and larger plastic items into smaller plastic fragments when they are exposed to the marine environment. All of this takes place through photodegradation and other different weathering processes of mismanaged waste like discarded plastic bags or from unintentional losses, for example; fishing nets 1.Future demand for plastic:In today’s world,  plastic is a common material which could be found in almost all parts of our everyday life, and by this we mean; packaging, buildings and construction, vehicles, electrical and electronic equipment, agriculture production, clothes and footwear, householder and personal cleaning products.  A huge number of applications have advantages of their properties such as durability, malleability, lightweight and low cost. The use of plastic has been exponentially increasing since the establishment of synthetic organic polymers in the mid of the 20th century. More than 300 million tons of plastic gets produced annual to manufacture objects in plastic. In contrast to 1950, where only 1.5 million tons of plastic was produced. The long-term growth rate has been roughly around 4% on average.  (PlasticsEurope, 2015) 2.Pathways for microplastics to the sea:1- From land-based sources: Both primary and secondary microplastics can get into the continental aquatic environment through many different pathways. The debris enters the aquatic systems straight through the runoff water or even via stormwater and (WWTP) which is known as wastewater treatment plant. For instance, granulated polyethylene (PE), polypropylene (PP) or polystyrene (PS) particles, are used in skin cleansers. They can be introduced into wastewater (Gregory1996). Moreover, the washing machines that clean our laundry release a huge amount of plastic fibers into the wastewater (Browne 2015; Karlsson 2015). Industrial or Agricultural (Rillig 2012) activities also contribute to the number of microplastics in freshwater/aquatic ecosystems. Large amounts of microplastic particles and fibers been detected in the vicinity of industrial plants involved in the paper production (Dubaish and Liebezeit 2013). As we know, primary microplastics and synthetic fibers contaminate sewage sludge (Zubris and Richards 2005)1. The snow that is getting off the ground and pushed straight into the water recipient will be the even more efficient pathway for microparticles from the urban areas to the aquatic ecosystems 3.2- from sea-based sources: production of microplastics directly into the sea happen through weathering or chafing of submerged plastic or meanwhile the objects maintaining by the seaside The presence of compounded plastics in the open ocean is likely to be because of the routine solid waste disposals by individual ships (Colton et al. 1974).The floating devices and types of equipment used for fishing are dishonored while using, as is boat hulls. The major emissions from boat hulls, however, are during maintenance by the seaside, at shipyards or marinas 3.  Activities such as fishing and aquaculture will also increase the amounts of plastics into the ocean. The recent increase in population along the coast globally and the accessibility of nylon netting, monofilament fragments for fishing and other purposes, have substantially become a cause of plastic litter generation (Bourne 1977)1