Trace metals partitioning among different sedimentary mineral phases and the deposit-feeding polychaete Armandia brevis
Trace metals (Cd, Co, Cu, Fe, Mn, Ni, Pb, Zn) were determined in two operationally defined fractions (HCl and pyrite) in sediments from Ensenada and El Sauzal harbors (Mexico). The HCl fraction had significantly higher metal concentrations relative to the pyrite fraction in both harbors, underlining...
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| Veröffentlicht in: | The Science of the total environment 2016-02, Vol.543 (Pt A), p.248-266 |
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| creator | Díaz-de-Alba, Margarita Huerta-Diaz, Miguel Angel Delgadillo-Hinojosa, Francisco Hare, Landis Galindo-Riaño, M. Dolores Siqueiros-Valencia, Arturo |
| description | Trace metals (Cd, Co, Cu, Fe, Mn, Ni, Pb, Zn) were determined in two operationally defined fractions (HCl and pyrite) in sediments from Ensenada and El Sauzal harbors (Mexico). The HCl fraction had significantly higher metal concentrations relative to the pyrite fraction in both harbors, underlining the weak tendency of most trace metals to associate with pyrite. Exceptionally, Cu was highly pyritized, with degrees of trace metal pyritization (DTMP) >80% in both harbors. Dissolved Fe flux measurements combined with solid phase Fe sulfide data indicated that 98mt of Fe are precipitated as iron sulfides every year in Ensenada Harbor. These Fe sulfides (and associated trace metals) will remain preserved in the sediments, unless they are perturbed by dredging or sediment resuspension. Calculations indicate that dredging activities could export to the open ocean 0.20±0.13 to (0.30±0.56)×103mt of Cd and Cu, respectively, creating a potential threat to marine benthic organisms. Degrees of pyritization (DOP) values in Ensenada and El Sauzal harbors were relatively low ( |
| doi_str_mv | 10.1016/j.scitotenv.2015.11.033 |
| format | Article |
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[Display omitted]
•A positive relationship was found between HCl and pyrite trace metal concentrations•Incorporation of trace metals into pyrite is a function of their solubility product•Every year 98 metric tons of Fe are precipitated as pyrite in Ensenada Harbor•Dredging operations can export as much as (0.30±0.56)×103 metric tons of Cu•Trace metals in Armandia brevis correlated with sedimentary reactive trace metals]]></description><identifier>ISSN: 0048-9697</identifier><identifier>EISSN: 1879-1026</identifier><identifier>DOI: 10.1016/j.scitotenv.2015.11.033</identifier><identifier>PMID: 26595396</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>Animals ; Armandia brevis ; Copper ; Correlation ; Dredging ; Environmental Monitoring ; Geologic Sediments - chemistry ; Iron ; Marine ; Metals, Heavy - analysis ; Mexico ; Minerals ; Polychaeta - physiology ; Pyrite ; Sediment contamination ; Sediments ; Speciation ; Sulfides ; Trace metal ; Trace metals ; Water Pollutants, Chemical - analysis</subject><ispartof>The Science of the total environment, 2016-02, Vol.543 (Pt A), p.248-266</ispartof><rights>2015 Elsevier B.V.</rights><rights>Copyright © 2015 Elsevier B.V. All rights reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c486t-33d31feca46f43dbdfb76431e0fab5498d9e812ff931d9fc5b6590cd41fc1bee3</citedby><cites>FETCH-LOGICAL-c486t-33d31feca46f43dbdfb76431e0fab5498d9e812ff931d9fc5b6590cd41fc1bee3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.scitotenv.2015.11.033$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26595396$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Díaz-de-Alba, Margarita</creatorcontrib><creatorcontrib>Huerta-Diaz, Miguel Angel</creatorcontrib><creatorcontrib>Delgadillo-Hinojosa, Francisco</creatorcontrib><creatorcontrib>Hare, Landis</creatorcontrib><creatorcontrib>Galindo-Riaño, M. Dolores</creatorcontrib><creatorcontrib>Siqueiros-Valencia, Arturo</creatorcontrib><title>Trace metals partitioning among different sedimentary mineral phases and the deposit-feeding polychaete Armandia brevis</title><title>The Science of the total environment</title><addtitle>Sci Total Environ</addtitle><description><![CDATA[Trace metals (Cd, Co, Cu, Fe, Mn, Ni, Pb, Zn) were determined in two operationally defined fractions (HCl and pyrite) in sediments from Ensenada and El Sauzal harbors (Mexico). The HCl fraction had significantly higher metal concentrations relative to the pyrite fraction in both harbors, underlining the weak tendency of most trace metals to associate with pyrite. Exceptionally, Cu was highly pyritized, with degrees of trace metal pyritization (DTMP) >80% in both harbors. Dissolved Fe flux measurements combined with solid phase Fe sulfide data indicated that 98mt of Fe are precipitated as iron sulfides every year in Ensenada Harbor. These Fe sulfides (and associated trace metals) will remain preserved in the sediments, unless they are perturbed by dredging or sediment resuspension. Calculations indicate that dredging activities could export to the open ocean 0.20±0.13 to (0.30±0.56)×103mt of Cd and Cu, respectively, creating a potential threat to marine benthic organisms. Degrees of pyritization (DOP) values in Ensenada and El Sauzal harbors were relatively low (<25%) while degrees of sulfidization (DOS) were high (~50%) because of the contribution of acid volatile sulfide. DOP values correlated with DTMP values (p≤0.001), indicating that metals are gradually incorporated into pyrite as this mineral is formed. Significant correlations were also found between DTMP values and −log(Ksp(MeS)/Ksp(pyr)) for both harbors, indicating that incorporation of trace metals into the pyrite phase is a function of the solubility product of the corresponding metal sulfide. The order in which elements were pyritized in both harbors was Zn≈Mn<Fe<Cd≈Pb<Ni≈Co<<Cu. Lastly, a strong correlation (r2=0.87, p<0.01) was found between average reactive trace metal concentrations and metal concentrations measured in Armandia brevis (a deposit-feeding Opheliid polychaete), suggesting that these labile sedimentary metals are preferentially accumulated by the polychaete, making it a useful biomonitor of sedimentary metal exposure.
[Display omitted]
•A positive relationship was found between HCl and pyrite trace metal concentrations•Incorporation of trace metals into pyrite is a function of their solubility product•Every year 98 metric tons of Fe are precipitated as pyrite in Ensenada Harbor•Dredging operations can export as much as (0.30±0.56)×103 metric tons of Cu•Trace metals in Armandia brevis correlated with sedimentary reactive trace metals]]></description><subject>Animals</subject><subject>Armandia brevis</subject><subject>Copper</subject><subject>Correlation</subject><subject>Dredging</subject><subject>Environmental Monitoring</subject><subject>Geologic Sediments - chemistry</subject><subject>Iron</subject><subject>Marine</subject><subject>Metals, Heavy - analysis</subject><subject>Mexico</subject><subject>Minerals</subject><subject>Polychaeta - physiology</subject><subject>Pyrite</subject><subject>Sediment contamination</subject><subject>Sediments</subject><subject>Speciation</subject><subject>Sulfides</subject><subject>Trace metal</subject><subject>Trace metals</subject><subject>Water Pollutants, Chemical - analysis</subject><issn>0048-9697</issn><issn>1879-1026</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkUtvHCEQhFEUK14__kLCMZeZ0APDDMeVlYclS7k4Z8RA42U1rwC7kf99WK3ja8wBOHzVpa4i5BOwGhjIL_s62ZCXjPOxbhi0NUDNOH9HNtB3qgLWyPdkw5joKyVVd0muUtqzcroePpDLRraq5UpuyJ_HaCzSCbMZE11NzCGHZQ7zEzXTUm4XvMeIc6YJXZjKx8RnOoUZoxnpujMJEzWzo3mH1OG6pJArj4Ut4nUZn-3OYEa6jVOhgqFDxGNIN-TCF0e8fXmvya9vXx_vflQPP7_f320fKit6mSvOHQeP1gjpBXeD80MnBQdk3gytUL1T2EPjveLglLftUDZj1gnwFgZEfk0-n-eucfl9wJT1FJLFcTQzLoekoetlw4QQ7A2obHirgKs3oC2IvlWdLGh3Rm1cUoro9RrDVDLUwPSpS73Xr13qU5caQJcui_Lji8lhmNC96v6VV4DtGcAS4DFgPA3C2ZbsI9qs3RL-a_IXeEW3lQ</recordid><startdate>20160201</startdate><enddate>20160201</enddate><creator>Díaz-de-Alba, Margarita</creator><creator>Huerta-Diaz, Miguel Angel</creator><creator>Delgadillo-Hinojosa, Francisco</creator><creator>Hare, Landis</creator><creator>Galindo-Riaño, M. 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Dolores</creatorcontrib><creatorcontrib>Siqueiros-Valencia, Arturo</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Environment Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Environment Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>The Science of the total environment</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Díaz-de-Alba, Margarita</au><au>Huerta-Diaz, Miguel Angel</au><au>Delgadillo-Hinojosa, Francisco</au><au>Hare, Landis</au><au>Galindo-Riaño, M. Dolores</au><au>Siqueiros-Valencia, Arturo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Trace metals partitioning among different sedimentary mineral phases and the deposit-feeding polychaete Armandia brevis</atitle><jtitle>The Science of the total environment</jtitle><addtitle>Sci Total Environ</addtitle><date>2016-02-01</date><risdate>2016</risdate><volume>543</volume><issue>Pt A</issue><spage>248</spage><epage>266</epage><pages>248-266</pages><issn>0048-9697</issn><eissn>1879-1026</eissn><abstract><![CDATA[Trace metals (Cd, Co, Cu, Fe, Mn, Ni, Pb, Zn) were determined in two operationally defined fractions (HCl and pyrite) in sediments from Ensenada and El Sauzal harbors (Mexico). The HCl fraction had significantly higher metal concentrations relative to the pyrite fraction in both harbors, underlining the weak tendency of most trace metals to associate with pyrite. Exceptionally, Cu was highly pyritized, with degrees of trace metal pyritization (DTMP) >80% in both harbors. Dissolved Fe flux measurements combined with solid phase Fe sulfide data indicated that 98mt of Fe are precipitated as iron sulfides every year in Ensenada Harbor. These Fe sulfides (and associated trace metals) will remain preserved in the sediments, unless they are perturbed by dredging or sediment resuspension. Calculations indicate that dredging activities could export to the open ocean 0.20±0.13 to (0.30±0.56)×103mt of Cd and Cu, respectively, creating a potential threat to marine benthic organisms. Degrees of pyritization (DOP) values in Ensenada and El Sauzal harbors were relatively low (<25%) while degrees of sulfidization (DOS) were high (~50%) because of the contribution of acid volatile sulfide. DOP values correlated with DTMP values (p≤0.001), indicating that metals are gradually incorporated into pyrite as this mineral is formed. Significant correlations were also found between DTMP values and −log(Ksp(MeS)/Ksp(pyr)) for both harbors, indicating that incorporation of trace metals into the pyrite phase is a function of the solubility product of the corresponding metal sulfide. The order in which elements were pyritized in both harbors was Zn≈Mn<Fe<Cd≈Pb<Ni≈Co<<Cu. Lastly, a strong correlation (r2=0.87, p<0.01) was found between average reactive trace metal concentrations and metal concentrations measured in Armandia brevis (a deposit-feeding Opheliid polychaete), suggesting that these labile sedimentary metals are preferentially accumulated by the polychaete, making it a useful biomonitor of sedimentary metal exposure.
[Display omitted]
•A positive relationship was found between HCl and pyrite trace metal concentrations•Incorporation of trace metals into pyrite is a function of their solubility product•Every year 98 metric tons of Fe are precipitated as pyrite in Ensenada Harbor•Dredging operations can export as much as (0.30±0.56)×103 metric tons of Cu•Trace metals in Armandia brevis correlated with sedimentary reactive trace metals]]></abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>26595396</pmid><doi>10.1016/j.scitotenv.2015.11.033</doi><tpages>19</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | The Science of the total environment, 2016-02, Vol.543 (Pt A), p.248-266 |
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| language | eng |
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| source | MEDLINE; ScienceDirect Journals (5 years ago - present) |
| subjects | Animals Armandia brevis Copper Correlation Dredging Environmental Monitoring Geologic Sediments - chemistry Iron Marine Metals, Heavy - analysis Mexico Minerals Polychaeta - physiology Pyrite Sediment contamination Sediments Speciation Sulfides Trace metal Trace metals Water Pollutants, Chemical - analysis |
| title | Trace metals partitioning among different sedimentary mineral phases and the deposit-feeding polychaete Armandia brevis |
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