Heavy metals in sediments of Yellow Sea and East China Sea: Chemical speciation, distribution, influence factor, and contamination

Metal species and the degree of environmental pollution are related to hydrogen sulfide (H2S), an important product early diagenesis that can react with metals form stable compounds. To investigate effects H2S evaluate metal environment effect in sediments East China Sea (ECS) Yellow (YS), geochemical characteristic spatial distribution nine heavy profile were studied. Higher content lower was observed 10 cm depth North west coast South Korea. The load index (Ipl) indicates southern Shandong Peninsula underwent moderate (Ipl=1) no appeared other areas (Ipl < 1). some extents, ecological risk Cd As enrichment moderately severe all stations. chance combination be toxic ECS YS during summer 21%. In addition, correlation between both solid porewater phases obvious, corroborating on distribution. Moreover, could affect distributions directly indicative potential biological combined toxicant groups study region.