Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2016 Sep 15;110(1):564-571.
doi: 10.1016/j.marpolbul.2016.05.060. Epub 2016 Jun 3.

Spatial distribution and pollution evaluation of heavy metals in Yangtze estuary sediment

Ruimin Liu  1 , Cong Men  2 , Yongyan Liu  2 , Wenwen Yu  2 , Fei Xu  2 , Zhenyao Shen  2
Affiliations

Spatial distribution and pollution evaluation of heavy metals in Yangtze estuary sediment

Ruimin Liu et al. Mar Pollut Bull. .

Abstract

To analyze the spatial distribution patterns and ecological risks of heavy metals, 30 sediment samples were taken in the Yangtze River Estuary (YRE) in May 2011. The content of Al, As, Cr, Cu, Fe, Mn, Ni and Pb increased as follows: inner-region<river mouth<adjacent sea. According to Igeo and RI, As, Cr and Cd were the main pollutants. What is more, the greatest contaminated area appeared at the river mouth of the south branch of YRE. In Tucker 3, considering the fractions of metals, Mn turned to be the severest pollutant and As did not contribute too much to the contamination of the YRE. That was most probably because that Mn was closely related to the carbonate-associated (CARB) and As was related to organic-associated (OM) which is more stable than CARB. The fractions played an important role in the contamination assessment of heavy metals.

Keywords: Ecological risk assessment; Geographic information system; Heavy metals; Spatial distribution; Yangtze River estuary.

PubMed Disclaimer

LinkOut - more resources