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Int. J. Environ. Res. Public Health 2014, 11(3), 2504-2520; doi:10.3390/ijerph110302504
Article

Assessment of Ecological and Human Health Risks of Heavy Metal Contamination in Agriculture Soils Disturbed by Pipeline Construction

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Received: 12 November 2013; in revised form: 4 February 2014 / Accepted: 7 February 2014 / Published: 28 February 2014
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Abstract: The construction of large-scale infrastructures such as nature gas/oil pipelines involves extensive disturbance to regional ecosystems. Few studies have documented the soil degradation and heavy metal contamination caused by pipeline construction. In this study, chromium (Cr), cadmium (Cd), copper (Cu), nickel (Ni), lead (Pb) and zinc (Zn) levels were evaluated using Index of Geo-accumulation (Igeo) and Potential Ecological Risk Index (RI) values, and human health risk assessments were used to elucidate the level and spatial variation of heavy metal pollution risks. The results showed that the impact zone of pipeline installation on soil heavy metal contamination was restricted to pipeline right-of-way (RoW), which had higher Igeo of Cd, Cu, Ni and Pb than that of 20 m and 50 m. RI showed a declining tendency in different zones as follows: trench > working zone > piling area > 20 m > 50 m. Pipeline RoW resulted in higher human health risks than that of 20 m and 50 m, and children were more susceptible to non-carcinogenic hazard risk. Cluster analysis showed that Cu, Ni, Pb and Cd had similar sources, drawing attention to the anthropogenic activity. The findings in this study should help better understand the type, degree, scope and sources of heavy metal pollution from pipeline construction to reduce pollutant emissions, and are helpful in providing a scientific basis for future risk management.
Keywords: heavy metal; pipeline construction; risk assessment; spatial variation heavy metal; pipeline construction; risk assessment; spatial variation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Shi, P.; Xiao, J.; Wang, Y.; Chen, L. Assessment of Ecological and Human Health Risks of Heavy Metal Contamination in Agriculture Soils Disturbed by Pipeline Construction. Int. J. Environ. Res. Public Health 2014, 11, 2504-2520.

AMA Style

Shi P, Xiao J, Wang Y, Chen L. Assessment of Ecological and Human Health Risks of Heavy Metal Contamination in Agriculture Soils Disturbed by Pipeline Construction. International Journal of Environmental Research and Public Health. 2014; 11(3):2504-2520.

Chicago/Turabian Style

Shi, Peng; Xiao, Jun; Wang, Yafeng; Chen, Liding. 2014. "Assessment of Ecological and Human Health Risks of Heavy Metal Contamination in Agriculture Soils Disturbed by Pipeline Construction." Int. J. Environ. Res. Public Health 11, no. 3: 2504-2520.



Int. J. Environ. Res. Public Health EISSN 1660-4601 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert