Back to Search
Start Over
Distribution and Contamination Risk Assessment of Dissolved Trace Metals in Surface Waters in the Yellow River Delta.
- Source :
-
Human & Ecological Risk Assessment . Nov2013, Vol. 19 Issue 6, p1514-1529. 16p. - Publication Year :
- 2013
-
Abstract
- This study investigated the dissolved trace metal contamination levels of Zn, Sr, B, Al, Ba, Fe, Mn, Li, V, Be, Cd, Cr, Cu, Mo, Ni, Se, and Pb in 23 surface waters of the Yellow River Delta (YRD) in China. Coefficients of variation with 66–260% reflected large spatial variations of concentrations of metals. Compared to drinking water guidelines established by the World Health Organization and the U.S. Environmental Protection Agency, the primary trace metal pollution components (Al, B, V, and Zn) were above drinking water standard levels by 82.6%, 47.8%, 52.2%, and 52.2%, respectively. Preliminary risk assessments were determined via the Hazard Quotient (HQ) to evaluate the human health risk of these metals. HQingestionof V indicated potential deleterious health effects for residents. Hierarchical cluster results revealed that clusters 1, 2, and 3 were primarily affected by pollution from industrial and domestic activities, natural and agriculture activities, and oil fields, respectively. Principal component analysis results indicated Fe, Mn, Al, and Ba were controlled by natural sources, whereas anthropogenic activities led to high pollution levels of Al, B, V, Zn, and Sr. [ABSTRACT FROM AUTHOR]
- Subjects :
- *TRACE metals
*SPATIAL variation
*WATER pollution
*RISK assessment
Subjects
Details
- Language :
- English
- ISSN :
- 10807039
- Volume :
- 19
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Human & Ecological Risk Assessment
- Publication Type :
- Academic Journal
- Accession number :
- 89077048
- Full Text :
- https://doi.org/10.1080/10807039.2012.708254