期刊
MARINE POLLUTION BULLETIN
卷 100, 期 1, 页码 445-452出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2015.08.007
关键词
Puerto Rico; Metals; Estuary; Sediment; Pollution; Caribbean
资金
- NSF-AGEP Postdoctoral Fellowship [0549066]
- NIH Research Centers in Minority Institutions (NIH/NCRR/RCMI) CCNY [G12-RR03060]
The concentration and distribution of Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn were investigated in three sediment cores representing 100-150 years of accumulation in upriver, midriver, and estuarine environments in Rio Espiritu Santo (RES), Puerto Rico. Grain-size distribution, organic matter and carbonate content were determined to assess their influence on metal concentrations. Minimum biotoxicity levels of Ni and Cu were exceeded in the upriver and midriver sites, while the minimum biotoxicity level of Cu was exceeded in the estuarine location. Pb concentration decreased by similar to 35% in the upper portion of the midriver and estuarine cores compared to downcore concentrations as a consequence of leaded gasoline regulation. Enrichment Factors and Geoaccumulation Indices were calculated for each metal revealing high levels of Cu in all three cores, likely from an igneous source. Our results provide a baseline for metal contamination in an area facing further land use change. (C) 2015 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据