The Effect of Geomembrane Plastic Usage on Microplastic and Heavy Metal Contamination in Salt Field

Abstract Seawater is used to produce salt. For 10–15 years, geomembrane plastic has been in salt fields Indonesia prevent contamination and increase quality productivity. However, it unfortunate that currently, seawater polluted by waste, which degraded gradually into small pieces about <5 mm size called microplastics. In addition microplastics, also heavy metals. Previous research indicated the north coast of Central Java metals whose content exceeded threshold. The aim this study was analyze amount microplastic (MPs) metal A microscope measure MPs AAS concentration Variables were conducted included sampling location (4 locations) crystallization process (with without using geomembrane). results showed with a higher than geomembrane, at 337 326 particles/kg, respectively. average 332 particles/kg. Salts use geomembranes have more salts geomembranes. Heavy Pb, Cd, Hg, As, all still within Pb Cd 4.11 mg/kg 4.14 mg/kg; 0.65 1.05, Meanwhile, Hg As concentrations for both below 0.001 0.005 mg/kg,