Abstract
AbstractDitch irrigation is an important route that potentially discharges microplastics (MPs) into environment. Samiran ditch irrigation is the largest urban irrigation in Pamekasan City, Indonesia. Water and sediment samples were collected in Samiran ditch irrigation to identify MPs including their color, shape, size, and number of MPs. From all sampling locations, MPs were found in both the water and sediments of the Samiran ditch irrigation with sizes ranging from 0.1 mm to 2.9 mm. The abundance of MPs in water ranged from 0.5 to 0.9 items/L, while MPs in sediments 0.14 to 0.23 items/g with colors of black, blue, and yellow. The polymer types of polyethyleneimine (PEI) and polypropylene (PP) were found both in surface water and sediment sample. MPs such as fragments, filament, fiber, and pellet were found in Samiran ditch irrigation with fiber was dominant found in the surface water (40%) and fragment was dominant in sediment (25%).
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