Matches in SemOpenAlex for { <https://semopenalex.org/work/W3092270701> ?p ?o ?g. }
Showing items 1 to 54 of
54
with 100 items per page.
- W3092270701 abstract "<p>Correlations between magnetic enhancement and heavy metal pollution in the urban soils of an industrial area in Shanghai</p> <p>&#160;</p> <p>Mei Li, Zi-Chen He, Xue-Feng Hu</p> <p>School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China</p> <p>&#160;</p> <p>Fifty-three topsoil samples (0-5 cm) on the sides of highways surrounding the Bao Steel Company were collected in Baoshan District of Shanghai, Southeast China. Physical-chemical properties and magnetic susceptibility of the topsoils were analyzed. Close to the Yangtze River Estuary, the soils in the study area in the northern part of Baoshan District, Shanghai, were mostly derived from tidal sediments of the estuary. The topsoils were thus alkaline, with pH in a range of 8.0-8.6. The content of organic matter in the topsoils was in a range of 8.0-78.6 mg g<sup>-1</sup>. The content of Fe in the topsoils varied greatly, possibly influenced by the industrial emissions from local metal smelters and power plants. The content of total Fe (Fe<sub>t</sub>) in the topsoils was in a range of 21.0-68.6 mg g<sup>-1</sup>, with an average of 33.7 mg g<sup>-1</sup>; free Fe (Fe<sub>d</sub>), 8.5-25.2 mg g<sup>-1</sup>, with an average of 13.8 mg g<sup>-1</sup>; amorphous Fe (Fe<sub>o</sub>), 2.2-40.4 mg g<sup>-1</sup>, with an average of 13.1 mg g<sup>-1</sup>. Correspondingly, the magnetic signals of the topsoils were significantly enhanced and varied greatly from site to site. Magnetic susceptibility of the topsoils was in a range of 35.3-1722.7&#215;10<sup>-8</sup> m<sup>3</sup> kg<sup>-1</sup>, with an average of 408.5&#215;10<sup>-8</sup> m<sup>3</sup> kg<sup>-1</sup>. The topsoil with the maximum magnetic susceptibility, 1722.7&#215;10<sup>-8</sup> m<sup>3</sup> kg<sup>-1</sup>, was coarse in grain size and located beside some machinery, cement and material factories. Magnetic susceptibility of the topsoils was significantly correlated with Fe<sub>t</sub>, Fe<sub>d</sub> and Fe<sub>o</sub> (r=0.712, 0.777, 0.961, n=53; p<0.01). The contents of toxic heavy metals, Zn, Pb, Cr, Co, Mn and Ni, in the topsoils were also analyzed. It was found that heavy metals were highly accumulated in the topsoils. The contents of Mn, Cr and Ni in the topsoils were more than 2 times the background values in the soils of Shanghai, and Pb and Zn were more than 4 times the background values. Moreover, magnetic susceptibility of the topsoils was positively significantly correlated with the content of Zn, Mn and Ni (r=0.884, 0.819, 0.564, p<0.01; n=53). This suggests that magnetic susceptibility of the topsoils can be used to indicate the degree of heavy metal pollution to some extent. There are many iron smelting factories and coal-fired power plants in the study area, which emitted a high amount of Fe-containing magnetic particles. The small particles had a large surface area and often adsorbed toxic heavy metals. When the particles were settled down on the ground, both magnetic signals and heavy metal contents of the topsoils were enhanced simultaneously. Therefore, the magnetic techniques are a promising means to study and evaluate the pollution of urban soils.</p>" @default.
- W3092270701 created "2020-10-15" @default.
- W3092270701 creator A5009884211 @default.
- W3092270701 date "2020-03-11" @default.
- W3092270701 modified "2023-09-26" @default.
- W3092270701 title "Correlations between magnetic enhancement and heavy metal pollution in the urban soils of an industrial area in Shanghai" @default.
- W3092270701 doi "https://doi.org/10.5194/egusphere-egu2020-1117" @default.
- W3092270701 hasPublicationYear "2020" @default.
- W3092270701 type Work @default.
- W3092270701 sameAs 3092270701 @default.
- W3092270701 citedByCount "0" @default.
- W3092270701 crossrefType "posted-content" @default.
- W3092270701 hasAuthorship W3092270701A5009884211 @default.
- W3092270701 hasConcept C107872376 @default.
- W3092270701 hasConcept C140793950 @default.
- W3092270701 hasConcept C159390177 @default.
- W3092270701 hasConcept C159750122 @default.
- W3092270701 hasConcept C178790620 @default.
- W3092270701 hasConcept C185592680 @default.
- W3092270701 hasConcept C18903297 @default.
- W3092270701 hasConcept C20529654 @default.
- W3092270701 hasConcept C39432304 @default.
- W3092270701 hasConcept C48743137 @default.
- W3092270701 hasConcept C86803240 @default.
- W3092270701 hasConcept C88160329 @default.
- W3092270701 hasConceptScore W3092270701C107872376 @default.
- W3092270701 hasConceptScore W3092270701C140793950 @default.
- W3092270701 hasConceptScore W3092270701C159390177 @default.
- W3092270701 hasConceptScore W3092270701C159750122 @default.
- W3092270701 hasConceptScore W3092270701C178790620 @default.
- W3092270701 hasConceptScore W3092270701C185592680 @default.
- W3092270701 hasConceptScore W3092270701C18903297 @default.
- W3092270701 hasConceptScore W3092270701C20529654 @default.
- W3092270701 hasConceptScore W3092270701C39432304 @default.
- W3092270701 hasConceptScore W3092270701C48743137 @default.
- W3092270701 hasConceptScore W3092270701C86803240 @default.
- W3092270701 hasConceptScore W3092270701C88160329 @default.
- W3092270701 hasLocation W30922707011 @default.
- W3092270701 hasOpenAccess W3092270701 @default.
- W3092270701 hasPrimaryLocation W30922707011 @default.
- W3092270701 hasRelatedWork W12687318 @default.
- W3092270701 hasRelatedWork W13706697 @default.
- W3092270701 hasRelatedWork W21539771 @default.
- W3092270701 hasRelatedWork W32968323 @default.
- W3092270701 hasRelatedWork W35303289 @default.
- W3092270701 hasRelatedWork W36458730 @default.
- W3092270701 hasRelatedWork W42988954 @default.
- W3092270701 hasRelatedWork W52377319 @default.
- W3092270701 hasRelatedWork W52722537 @default.
- W3092270701 hasRelatedWork W7015673 @default.
- W3092270701 isParatext "false" @default.
- W3092270701 isRetracted "false" @default.
- W3092270701 magId "3092270701" @default.
- W3092270701 workType "article" @default.