Distribution of heavy metals in sediments of the Pearl River Estuary, Southern China： Implications for sources and historical changes
The distribution of heavy metals (Pb, Zn, Cd and As) in sediments of the Pearl River Estuary was investigated. The spatial distribution of heavy metals displayed a decreasing pattern from the turbidity maxima to both upstream and downstream of the estuary, which suggested that suspended sediments pl...
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| Veröffentlicht in: | Journal of environmental sciences (China) 2012-04, Vol.24 (4), p.579-588 |
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| creator | Ye, Feng Huang, Xiaoping Zhang, Dawen Tian, Lei Zeng, Yanyi |
| description | The distribution of heavy metals (Pb, Zn, Cd and As) in sediments of the Pearl River Estuary was investigated. The spatial distribution of heavy metals displayed a decreasing pattern from the turbidity maxima to both upstream and downstream of the estuary, which suggested that suspended sediments played an important role in the trace metal distribution in the Pearl River Estuary. In addition, metal concentrations were higher in the west part of the estuary which received most of the pollutants from the Pearl River. In the sediment cores, fluxes of heavy metals were consistent with a predominant anthropogenic input in the period 1970–1990. From the mid-1990s to the 2000s, there was a significant decline in heavy metal pollution. The observed decline has shown the result of pollution control in the Pearl River Delta. However, it is noteworthy that the metal concentrations in the most recent sediment still remained considerably high. Taken together, the enrichment of heavy metals in sediments was largely controlled by anthropogenic pollution. |
| doi_str_mv | 10.1016/s1001-0742(11)60783-3 |
| format | Article |
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The spatial distribution of heavy metals displayed a decreasing pattern from the turbidity maxima to both upstream and downstream of the estuary, which suggested that suspended sediments played an important role in the trace metal distribution in the Pearl River Estuary. In addition, metal concentrations were higher in the west part of the estuary which received most of the pollutants from the Pearl River. In the sediment cores, fluxes of heavy metals were consistent with a predominant anthropogenic input in the period 1970–1990. From the mid-1990s to the 2000s, there was a significant decline in heavy metal pollution. The observed decline has shown the result of pollution control in the Pearl River Delta. However, it is noteworthy that the metal concentrations in the most recent sediment still remained considerably high. Taken together, the enrichment of heavy metals in sediments was largely controlled by anthropogenic pollution.</description><identifier>ISSN: 1001-0742</identifier><identifier>EISSN: 1878-7320</identifier><identifier>DOI: 10.1016/s1001-0742(11)60783-3</identifier><identifier>PMID: 22894090</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>Agriculture - economics ; arsenic ; Bays - chemistry ; Brackish ; Cadmium ; China ; Estuaries ; Estuarine environments ; Geography ; Geologic Sediments - chemistry ; Gross Domestic Product ; Heavy metals ; historical change ; History, 20th Century ; History, 21st Century ; Humans ; lead ; metal pollution ; Metals, Heavy - analysis ; pollutants ; Pollution abatement ; pollution control ; river deltas ; Rivers ; Rivers - chemistry ; sediment ; Sediments ; spatial distribution ; Surface Properties ; suspended sediment ; the Pearl River Estuary ; Time Factors ; turbidity ; Water Pollutants, Chemical - analysis ; Water Pollution - analysis ; Water Pollution - history ; zinc ; 中国南方 ; 历史变迁 ; 悬浮沉积物 ; 污染物浓度 ; 珠江三角洲 ; 珠江口 ; 重金属富集 ; 重金属污染</subject><ispartof>Journal of environmental sciences (China), 2012-04, Vol.24 (4), p.579-588</ispartof><rights>2012 The Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences</rights><rights>Copyright © Wanfang Data Co. 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The spatial distribution of heavy metals displayed a decreasing pattern from the turbidity maxima to both upstream and downstream of the estuary, which suggested that suspended sediments played an important role in the trace metal distribution in the Pearl River Estuary. In addition, metal concentrations were higher in the west part of the estuary which received most of the pollutants from the Pearl River. In the sediment cores, fluxes of heavy metals were consistent with a predominant anthropogenic input in the period 1970–1990. From the mid-1990s to the 2000s, there was a significant decline in heavy metal pollution. The observed decline has shown the result of pollution control in the Pearl River Delta. However, it is noteworthy that the metal concentrations in the most recent sediment still remained considerably high. Taken together, the enrichment of heavy metals in sediments was largely controlled by anthropogenic pollution.</description><subject>Agriculture - economics</subject><subject>arsenic</subject><subject>Bays - chemistry</subject><subject>Brackish</subject><subject>Cadmium</subject><subject>China</subject><subject>Estuaries</subject><subject>Estuarine environments</subject><subject>Geography</subject><subject>Geologic Sediments - chemistry</subject><subject>Gross Domestic Product</subject><subject>Heavy metals</subject><subject>historical change</subject><subject>History, 20th Century</subject><subject>History, 21st Century</subject><subject>Humans</subject><subject>lead</subject><subject>metal pollution</subject><subject>Metals, Heavy - analysis</subject><subject>pollutants</subject><subject>Pollution abatement</subject><subject>pollution control</subject><subject>river deltas</subject><subject>Rivers</subject><subject>Rivers - chemistry</subject><subject>sediment</subject><subject>Sediments</subject><subject>spatial distribution</subject><subject>Surface Properties</subject><subject>suspended sediment</subject><subject>the Pearl River Estuary</subject><subject>Time Factors</subject><subject>turbidity</subject><subject>Water Pollutants, Chemical - analysis</subject><subject>Water Pollution - analysis</subject><subject>Water Pollution - history</subject><subject>zinc</subject><subject>中国南方</subject><subject>历史变迁</subject><subject>悬浮沉积物</subject><subject>污染物浓度</subject><subject>珠江三角洲</subject><subject>珠江口</subject><subject>重金属富集</subject><subject>重金属污染</subject><issn>1001-0742</issn><issn>1878-7320</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkU2O1DAQhSMEYoaBIwBmgwaJQPknibNCqBlgpJFANLO23Em541Zi99hJozkBd-As3Ikr4NDdbGHlkuorv1f1suwxhVcUaPk6UgCaQyXYOaUvSqgkz_md7JTKSuYVZ3A31UfkJHsQ4wYARAHF_eyEMVkLqOE0-_7OxjHY1TRa74g3pEO9uyUDjrqPxDoSsbUDujHOzbFD8hl16MkXu8NALuI46XD7kiz9lHrBkUVnnf718we5HLa9bfT8bSTGBxL9FBqMRLuWdEnUh9TuSdNpt8b4MLtnkiI-Orxn2fX7i6-Lj_nVpw-Xi7dXeVPU1ZijxhZl0wpZMVmAKRlnfFVx0FXNqJEGxYrXWAsmJaRKt4ZLMELoisGqlfwse77_95t2JimrTbLlkqLaYFTIgDIQACyB53twG_zNhHFUg40N9r126KeoKHDBgFVQ_AdKBYWyKERCiz3aBB9jQKO2wQ7phAmauVIt59DUHJqiVP3JVfE09-QgMa0GbP9OHYNMwNM9YLRXeh1sVNfLtE2RdqGSy9nlmz2B6bw7i0HFxqJrUr4Bm1G13v7TxLOD-c679Y1N1zv6ELSkpawE_w0nUMfY</recordid><startdate>201204</startdate><enddate>201204</enddate><creator>Ye, Feng</creator><creator>Huang, Xiaoping</creator><creator>Zhang, Dawen</creator><creator>Tian, Lei</creator><creator>Zeng, Yanyi</creator><general>Elsevier B.V</general><general>State Key Laboratory of Tropical Oceanology, South China Sea Institute of Oceanology, Chinese Academy of Sciences,Guangzhou 510301, China</general><general>Graduate School of Chinese Academy of Sciences, Beijing 100039, China%State Key Laboratory of Tropical Oceanology, South China Sea Institute of Oceanology, Chinese Academy of Sciences,Guangzhou 510301, China</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W92</scope><scope>~WA</scope><scope>FBQ</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SU</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>KR7</scope><scope>7X8</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>201204</creationdate><title>Distribution of heavy metals in sediments of the Pearl River Estuary, Southern China： Implications for sources and historical changes</title><author>Ye, Feng ; 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The spatial distribution of heavy metals displayed a decreasing pattern from the turbidity maxima to both upstream and downstream of the estuary, which suggested that suspended sediments played an important role in the trace metal distribution in the Pearl River Estuary. In addition, metal concentrations were higher in the west part of the estuary which received most of the pollutants from the Pearl River. In the sediment cores, fluxes of heavy metals were consistent with a predominant anthropogenic input in the period 1970–1990. From the mid-1990s to the 2000s, there was a significant decline in heavy metal pollution. The observed decline has shown the result of pollution control in the Pearl River Delta. However, it is noteworthy that the metal concentrations in the most recent sediment still remained considerably high. Taken together, the enrichment of heavy metals in sediments was largely controlled by anthropogenic pollution.</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>22894090</pmid><doi>10.1016/s1001-0742(11)60783-3</doi><tpages>10</tpages></addata></record> |
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| ispartof | Journal of environmental sciences (China), 2012-04, Vol.24 (4), p.579-588 |
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| source | MEDLINE; Elsevier ScienceDirect Journals; Alma/SFX Local Collection |
| subjects | Agriculture - economics arsenic Bays - chemistry Brackish Cadmium China Estuaries Estuarine environments Geography Geologic Sediments - chemistry Gross Domestic Product Heavy metals historical change History, 20th Century History, 21st Century Humans lead metal pollution Metals, Heavy - analysis pollutants Pollution abatement pollution control river deltas Rivers Rivers - chemistry sediment Sediments spatial distribution Surface Properties suspended sediment the Pearl River Estuary Time Factors turbidity Water Pollutants, Chemical - analysis Water Pollution - analysis Water Pollution - history zinc 中国南方 历史变迁 悬浮沉积物 污染物浓度 珠江三角洲 珠江口 重金属富集 重金属污染 |
| title | Distribution of heavy metals in sediments of the Pearl River Estuary, Southern China： Implications for sources and historical changes |
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