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Article: Characteristics of groundwater discharge to river and related heavy metal transportation in a mountain mining area of Dabaoshan, Southern China

TitleCharacteristics of groundwater discharge to river and related heavy metal transportation in a mountain mining area of Dabaoshan, Southern China
Authors
KeywordsHeavy metal pollution
Groundwater discharge
Acid mine drainage
Mountain mining area
222Rn
Issue Date2019
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/scitotenv
Citation
Science of the Total Environment, 2019, v. 679, p. 346-358 How to Cite?
AbstractGroundwater discharge to river and the related heavy metal transportation were estimated for Dabaoshan, a mountain mining area where extensive mining activities had been conducted over 40 years. In the lower reach of the mining area, shallow aquifers were contaminated by varies heavy metals due to the discharge of acid mine drainage. Polluted aquifers act as long-term pollution sources to the surrounding gaining rivers, even after the mining activities were stopped. The natural tracer 222Rn was measured for river water of the Hengshi River and groundwater adjacent to the river channel in both wet and dry seasons. The total groundwater discharge rate was estimated to be 17.4–26.7 × 103 m3 day−1 in wet season and 1.9–2.1 × 103 m3 day−1 in dry season; and the river recharge was 5.6 ± 1.0 × 103 m3 day−1 in wet season and 2.1 ± 1.0 × 103 m3 day−1 in dry season. Compared with other mining and natural/artificial factor influenced areas, groundwater discharge rate in Dabaoshan was much lower, but the magnitudes of groundwater-borne Cu, Zn, Mn and Co fluxes were comparable or even much higher. This suggested that groundwater-derived heavy metal fluxes were significant pollution sources to river in the mountain mining area. Meanwhile, the results also suggested that concentrations of Cd, Pb, Cu, Ni, Mn, Fe, Zn and Tl in groundwater increased where the recharge of river water to groundwater occurred, suggesting the recharge of river water can affect heavy metal concentrations of the beneath aquifers, even in a gaining river.
Persistent Identifierhttp://hdl.handle.net/10722/274955
ISSN
2023 Impact Factor: 8.2
2023 SCImago Journal Rankings: 1.998
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWang, Y-
dc.contributor.authorDong, R-
dc.contributor.authorZhou, Y-
dc.contributor.authorLuo, X-
dc.date.accessioned2019-09-10T02:32:21Z-
dc.date.available2019-09-10T02:32:21Z-
dc.date.issued2019-
dc.identifier.citationScience of the Total Environment, 2019, v. 679, p. 346-358-
dc.identifier.issn0048-9697-
dc.identifier.urihttp://hdl.handle.net/10722/274955-
dc.description.abstractGroundwater discharge to river and the related heavy metal transportation were estimated for Dabaoshan, a mountain mining area where extensive mining activities had been conducted over 40 years. In the lower reach of the mining area, shallow aquifers were contaminated by varies heavy metals due to the discharge of acid mine drainage. Polluted aquifers act as long-term pollution sources to the surrounding gaining rivers, even after the mining activities were stopped. The natural tracer 222Rn was measured for river water of the Hengshi River and groundwater adjacent to the river channel in both wet and dry seasons. The total groundwater discharge rate was estimated to be 17.4–26.7 × 103 m3 day−1 in wet season and 1.9–2.1 × 103 m3 day−1 in dry season; and the river recharge was 5.6 ± 1.0 × 103 m3 day−1 in wet season and 2.1 ± 1.0 × 103 m3 day−1 in dry season. Compared with other mining and natural/artificial factor influenced areas, groundwater discharge rate in Dabaoshan was much lower, but the magnitudes of groundwater-borne Cu, Zn, Mn and Co fluxes were comparable or even much higher. This suggested that groundwater-derived heavy metal fluxes were significant pollution sources to river in the mountain mining area. Meanwhile, the results also suggested that concentrations of Cd, Pb, Cu, Ni, Mn, Fe, Zn and Tl in groundwater increased where the recharge of river water to groundwater occurred, suggesting the recharge of river water can affect heavy metal concentrations of the beneath aquifers, even in a gaining river.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/scitotenv-
dc.relation.ispartofScience of the Total Environment-
dc.subjectHeavy metal pollution-
dc.subjectGroundwater discharge-
dc.subjectAcid mine drainage-
dc.subjectMountain mining area-
dc.subject222Rn-
dc.titleCharacteristics of groundwater discharge to river and related heavy metal transportation in a mountain mining area of Dabaoshan, Southern China-
dc.typeArticle-
dc.identifier.emailLuo, X: xinluo@hku.hk-
dc.identifier.authorityLuo, X=rp02606-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.scitotenv.2019.04.273-
dc.identifier.pmid31085414-
dc.identifier.scopuseid_2-s2.0-85065404379-
dc.identifier.hkuros302944-
dc.identifier.volume679-
dc.identifier.spage346-
dc.identifier.epage358-
dc.identifier.isiWOS:000468619200035-
dc.publisher.placeNetherlands-
dc.identifier.issnl0048-9697-

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