Heavy Metal Pollution Assessment in the Sediment of Rao River, China using the Geo-accumulation Vector

Bao Qian, Zhe Wang, Feng Yan

2021

Abstract

The heavy metal plays an significant role in the sediment pollution of the river. However, for the heterogeneity of mineral composition, the background values of elements in sediment often contains uncertainties, which is hard to be treated by the conventional geo-accumulation index. In the present work, the geo-accumulation vector is introduced to deal with the uncertainty of background value and evaluate the pollution of heavy metal in the sediment of Rao River, China. The results show that: the order of pollution degree is: source < upper reaches < estuary < lower reaches < middle reaches. Dexing City, Poyang City and Jingdezhen City are the most polluted area along Rao River, which respectively belong to “moderately to heavily contaminated”, “moderately to heavily contaminated”, and “moderately contaminated” grades, and respectively have risk probabilities of 28%, 8% and 40% to deteriorate. The mean values of the elements in global shale should not be used as the background values of Rao River. Otherwise, the evaluation results of Cu and Cd may be overoptimistic. Compared with the conventional method, the geo-accumulation vector has apparent advantages in dealing with the uncertainty of background values and the recognizing the cross-grade risk.

Paper Citation

in Harvard Style

Qian B., Wang Z. and Yan F. (2021). Heavy Metal Pollution Assessment in the Sediment of Rao River, China using the Geo-accumulation Vector. In Proceedings of the 7th International Conference on Water Resource and Environment - Volume 1: WRE, ISBN 978-989-758-560-9, pages 140-150

in Bibtex Style

@conference{wre21,
author={Bao Qian and Zhe Wang and Feng Yan},
title={Heavy Metal Pollution Assessment in the Sediment of Rao River, China using the Geo-accumulation Vector},
booktitle={Proceedings of the 7th International Conference on Water Resource and Environment - Volume 1: WRE,},
year={2021},
pages={140-150},
publisher={SciTePress},
organization={INSTICC},
doi={},
isbn={978-989-758-560-9},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 7th International Conference on Water Resource and Environment - Volume 1: WRE,
TI - Heavy Metal Pollution Assessment in the Sediment of Rao River, China using the Geo-accumulation Vector
SN - 978-989-758-560-9
AU - Qian B.
AU - Wang Z.
AU - Yan F.
PY - 2021
SP - 140
EP - 150
DO -