|
|||||
|
|
Mercury Distribution in Contaminated Surface Sediments from Four Estuaries,Khuzestan Shore,North Part of Persian Gulf |
|
| Authors: | Abdolah Raeisi Sarasiab Mehdi Hosseini Zohreh Mirsalari |
| Affiliation: | 1. Department of Marine Ecology, Khoramshahr University of Marine Science and Technology, Farhangian Science University Iran, Tehran, Iran 2. Department of Marine Biology, Faculty of Biological Science, Shahid Beheshti University, Tehran, Iran 3. Department of Biodiversity, Research Science Branch, Azad University, Ahwaz, Iran |
| Abstract: | The distribution of mercury in surface sediment from four estuaries along the Khuzestan shore, north part of Persian Gulf, was measured. The concentration of mercury varied among sampling stations (p < 0.05). The concentrations of mercury in all estuaries were from 0.01 to 2.16 µg g?1. Relatively high mercury concentrations were observed in sediments from Musa estuary. The percentage of mercury associated with different fractions in the sediment from all stations were in the order of residual (70.4 %) > organic matter (16.6 %) > easily and exchangeable (2.2 %) > acid reduction (0.8 %). I geo values calculated for mercury (1.5) showed higher values in Musa estuary than in the other stations. The bioavailability of mercury in sediments could be controlled by physicochemical factors such as pH, oxidation and reduction potential, organic carbon content and cation exchange capacity. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |