Mercury accumulation in sediment and fish from rivers affected by alluvial gold mining in the Brazilian Madeira River basin, Amazon

The degree and distribution of mercury (Hg) accumulation in sediment and fish from a tributary affected by alluvial small-scale gold mining in the Madeira River/Amazon is studied, in relation to a reference site. The results obtained so far agree well with previous studies and confirm that a tremend...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Environmental monitoring and assessment 1994-09, Vol.32 (3), p.239-258
1. Verfasser: Reuther, R
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 258
container_issue 3
container_start_page 239
container_title Environmental monitoring and assessment
container_volume 32
creator Reuther, R
description The degree and distribution of mercury (Hg) accumulation in sediment and fish from a tributary affected by alluvial small-scale gold mining in the Madeira River/Amazon is studied, in relation to a reference site. The results obtained so far agree well with previous studies and confirm that a tremendous contamination of main food web compartments occurs in these highly exposed, but vulnerable tropical waters. An essential part of the released metallic Hg may still exist as macroscopic liquid Hg drops in the sediment. Both global (0.4 mg/kg of Hg) and local (0.1 mg/kg of Hg) background sediment values as well as safety levels for fish (0.5 mg/kg of Hg) are considerably exceeded by a factor of up to 25, 100, and 4, respectively, and give rise to serious concern, not least with regard to the formation of the very toxic monomethyl-Hg. It is further discussed that atmospheric transport and deposition of Hg in water reservoirs built for hydroelectric power generation may act as critical pathways for longterm Hg accumulation, even in unexposed riverine systems.
doi_str_mv 10.1007/BF00546279
format Article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_29731777</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>29394721</sourcerecordid><originalsourceid>FETCH-LOGICAL-a463t-5ab5a85b16df7979fda1c0379ddc4f502cf65655afff92a22bd52f938d6c100f3</originalsourceid><addsrcrecordid>eNqNkktLHTEYhoNU9HjZ-ANKVl0Ux-aek6VK1YIiFF0P3-SiKZmMTWYE3faPOwcvXR5X3-b5Hl5eXoQOKDmihOgfJ2eESKGYNhtoQaXmDTPSfEELQpVuFFdmG-3U-ocQYrQwW2ibCUYF5XqB_l35YqfyhMHaqZ8SjHHIOGZcvYu9zyOG7HCI9R6HMvS4xEdfKoYQvB29w938mdL0GCHhuyE53Mcc893KMN57fFLgOaYIGV-B87EA_r0S4A5qzIf4uIfnIe-hzQCp-v23u4tuz37enF40l9fnv06PLxsQio-NhE7CUnZUuaCNNsEBtYRr45wVQRJmg5JKyjlbMAwY65xkwfClU3buKfBd9O3V-1CGv5OvY9vHan1KkP0w1ZYZzanW-hMgN0Izuhac--dcL9cbqeRcEbNcDwquiRJkBr-_grYMtRYf2ocSeyhPLSXtahbt_1nM8Nc369T13n2g7zvgL1MQsro</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>14370640</pqid></control><display><type>article</type><title>Mercury accumulation in sediment and fish from rivers affected by alluvial gold mining in the Brazilian Madeira River basin, Amazon</title><source>SpringerLink Journals - AutoHoldings</source><creator>Reuther, R</creator><creatorcontrib>Reuther, R</creatorcontrib><description>The degree and distribution of mercury (Hg) accumulation in sediment and fish from a tributary affected by alluvial small-scale gold mining in the Madeira River/Amazon is studied, in relation to a reference site. The results obtained so far agree well with previous studies and confirm that a tremendous contamination of main food web compartments occurs in these highly exposed, but vulnerable tropical waters. An essential part of the released metallic Hg may still exist as macroscopic liquid Hg drops in the sediment. Both global (0.4 mg/kg of Hg) and local (0.1 mg/kg of Hg) background sediment values as well as safety levels for fish (0.5 mg/kg of Hg) are considerably exceeded by a factor of up to 25, 100, and 4, respectively, and give rise to serious concern, not least with regard to the formation of the very toxic monomethyl-Hg. It is further discussed that atmospheric transport and deposition of Hg in water reservoirs built for hydroelectric power generation may act as critical pathways for longterm Hg accumulation, even in unexposed riverine systems.</description><identifier>ISSN: 0167-6369</identifier><identifier>EISSN: 1573-2959</identifier><identifier>DOI: 10.1007/BF00546279</identifier><identifier>PMID: 24214137</identifier><language>eng</language><publisher>Netherlands</publisher><subject>Contamination ; Ecosystems ; Environmental impact ; Freshwater ; Q1 ; Rivers ; Sediments ; Toxicity</subject><ispartof>Environmental monitoring and assessment, 1994-09, Vol.32 (3), p.239-258</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a463t-5ab5a85b16df7979fda1c0379ddc4f502cf65655afff92a22bd52f938d6c100f3</citedby><cites>FETCH-LOGICAL-a463t-5ab5a85b16df7979fda1c0379ddc4f502cf65655afff92a22bd52f938d6c100f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27923,27924</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24214137$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Reuther, R</creatorcontrib><title>Mercury accumulation in sediment and fish from rivers affected by alluvial gold mining in the Brazilian Madeira River basin, Amazon</title><title>Environmental monitoring and assessment</title><addtitle>Environ Monit Assess</addtitle><description>The degree and distribution of mercury (Hg) accumulation in sediment and fish from a tributary affected by alluvial small-scale gold mining in the Madeira River/Amazon is studied, in relation to a reference site. The results obtained so far agree well with previous studies and confirm that a tremendous contamination of main food web compartments occurs in these highly exposed, but vulnerable tropical waters. An essential part of the released metallic Hg may still exist as macroscopic liquid Hg drops in the sediment. Both global (0.4 mg/kg of Hg) and local (0.1 mg/kg of Hg) background sediment values as well as safety levels for fish (0.5 mg/kg of Hg) are considerably exceeded by a factor of up to 25, 100, and 4, respectively, and give rise to serious concern, not least with regard to the formation of the very toxic monomethyl-Hg. It is further discussed that atmospheric transport and deposition of Hg in water reservoirs built for hydroelectric power generation may act as critical pathways for longterm Hg accumulation, even in unexposed riverine systems.</description><subject>Contamination</subject><subject>Ecosystems</subject><subject>Environmental impact</subject><subject>Freshwater</subject><subject>Q1</subject><subject>Rivers</subject><subject>Sediments</subject><subject>Toxicity</subject><issn>0167-6369</issn><issn>1573-2959</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1994</creationdate><recordtype>article</recordtype><recordid>eNqNkktLHTEYhoNU9HjZ-ANKVl0Ux-aek6VK1YIiFF0P3-SiKZmMTWYE3faPOwcvXR5X3-b5Hl5eXoQOKDmihOgfJ2eESKGYNhtoQaXmDTPSfEELQpVuFFdmG-3U-ocQYrQwW2ibCUYF5XqB_l35YqfyhMHaqZ8SjHHIOGZcvYu9zyOG7HCI9R6HMvS4xEdfKoYQvB29w938mdL0GCHhuyE53Mcc893KMN57fFLgOaYIGV-B87EA_r0S4A5qzIf4uIfnIe-hzQCp-v23u4tuz37enF40l9fnv06PLxsQio-NhE7CUnZUuaCNNsEBtYRr45wVQRJmg5JKyjlbMAwY65xkwfClU3buKfBd9O3V-1CGv5OvY9vHan1KkP0w1ZYZzanW-hMgN0Izuhac--dcL9cbqeRcEbNcDwquiRJkBr-_grYMtRYf2ocSeyhPLSXtahbt_1nM8Nc369T13n2g7zvgL1MQsro</recordid><startdate>19940901</startdate><enddate>19940901</enddate><creator>Reuther, R</creator><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><scope>7TV</scope><scope>7U7</scope><scope>7UA</scope><scope>F1W</scope><scope>H97</scope><scope>L.G</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>8BQ</scope><scope>JG9</scope><scope>KR7</scope></search><sort><creationdate>19940901</creationdate><title>Mercury accumulation in sediment and fish from rivers affected by alluvial gold mining in the Brazilian Madeira River basin, Amazon</title><author>Reuther, R</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a463t-5ab5a85b16df7979fda1c0379ddc4f502cf65655afff92a22bd52f938d6c100f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1994</creationdate><topic>Contamination</topic><topic>Ecosystems</topic><topic>Environmental impact</topic><topic>Freshwater</topic><topic>Q1</topic><topic>Rivers</topic><topic>Sediments</topic><topic>Toxicity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Reuther, R</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><collection>Pollution Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Water Resources Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science &amp; Fisheries Abstracts (ASFA) 3: Aquatic Pollution &amp; Environmental Quality</collection><collection>Aquatic Science &amp; Fisheries Abstracts (ASFA) Professional</collection><collection>Mechanical &amp; Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>METADEX</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Environmental monitoring and assessment</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Reuther, R</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Mercury accumulation in sediment and fish from rivers affected by alluvial gold mining in the Brazilian Madeira River basin, Amazon</atitle><jtitle>Environmental monitoring and assessment</jtitle><addtitle>Environ Monit Assess</addtitle><date>1994-09-01</date><risdate>1994</risdate><volume>32</volume><issue>3</issue><spage>239</spage><epage>258</epage><pages>239-258</pages><issn>0167-6369</issn><eissn>1573-2959</eissn><abstract>The degree and distribution of mercury (Hg) accumulation in sediment and fish from a tributary affected by alluvial small-scale gold mining in the Madeira River/Amazon is studied, in relation to a reference site. The results obtained so far agree well with previous studies and confirm that a tremendous contamination of main food web compartments occurs in these highly exposed, but vulnerable tropical waters. An essential part of the released metallic Hg may still exist as macroscopic liquid Hg drops in the sediment. Both global (0.4 mg/kg of Hg) and local (0.1 mg/kg of Hg) background sediment values as well as safety levels for fish (0.5 mg/kg of Hg) are considerably exceeded by a factor of up to 25, 100, and 4, respectively, and give rise to serious concern, not least with regard to the formation of the very toxic monomethyl-Hg. It is further discussed that atmospheric transport and deposition of Hg in water reservoirs built for hydroelectric power generation may act as critical pathways for longterm Hg accumulation, even in unexposed riverine systems.</abstract><cop>Netherlands</cop><pmid>24214137</pmid><doi>10.1007/BF00546279</doi><tpages>20</tpages></addata></record>
fulltext fulltext
identifier ISSN: 0167-6369
ispartof Environmental monitoring and assessment, 1994-09, Vol.32 (3), p.239-258
issn 0167-6369
1573-2959
language eng
recordid cdi_proquest_miscellaneous_29731777
source SpringerLink Journals - AutoHoldings
subjects Contamination
Ecosystems
Environmental impact
Freshwater
Q1
Rivers
Sediments
Toxicity
title Mercury accumulation in sediment and fish from rivers affected by alluvial gold mining in the Brazilian Madeira River basin, Amazon
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-11T14%3A56%3A13IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Mercury%20accumulation%20in%20sediment%20and%20fish%20from%20rivers%20affected%20by%20alluvial%20gold%20mining%20in%20the%20Brazilian%20Madeira%20River%20basin,%20Amazon&rft.jtitle=Environmental%20monitoring%20and%20assessment&rft.au=Reuther,%20R&rft.date=1994-09-01&rft.volume=32&rft.issue=3&rft.spage=239&rft.epage=258&rft.pages=239-258&rft.issn=0167-6369&rft.eissn=1573-2959&rft_id=info:doi/10.1007/BF00546279&rft_dat=%3Cproquest_cross%3E29394721%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=14370640&rft_id=info:pmid/24214137&rfr_iscdi=true