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| 1 | 北京首钢工业区大气重金属污染树叶的磁学响应显示文摘在北京西郊首钢工业区及附近混杂的居民区、公园绿地和农村耕作区采集了55个一年生的树叶样品,并对其进行岩石磁学和元素含量分析.结果表明:磁性矿物的含量和粒径由污染源区向周边递减.研究区域树叶的磁性由低矫顽力的磁铁矿主导.进一步研究表明样品的主要磁性参数(磁化率、非磁滞剩磁以及饱和等温剩磁)与元素Fe,Pb,Cr,V和Zn呈显著相关关系(0.73≤R≤0.88).因此树叶的磁参数可以作为大气重金属污染研究的理想替代指标. | 胡守云 段雪梅 沈明洁 Blaha U Rosler W 闫海涛 Appel E Hoffmann V | 2008 | 科学通报2008,53,4: | 19 |
| 2 | Relationship between magnetic parameters and heavy element contents of arable soil around a steel company,Nanjing显示文摘Magnetic parameters and element contents were determined in core NJ008 collected from the uppermost ca. 40 cm in a steel company in southwest Nanjing. The results showed that magnetic susceptibility (χ), saturation isothermal remanent magnetization (SIRM) and anhysteretic remanent magnetization (ARM) were enhanced in the uppermost 20 cm, with a mean magnetic susceptibility value of 112.5×10-8 m3 kg-1. Below 20 cm, χ decreased sharply with a mean value of 27.8×10-8m3 kg-1. Low-coercivity minerals such as magnetite dominate in arable soils, while the relative content of antiferromagnetic minerals increases below 20 cm. Heavy metals (Ni, Cu, Fe, Pb, V, and Zn) have similar vertical trends as χ. Principal component analysis reveals common high loadings of the same factor for magnetic concentration parameters (χ, ARM, and SIRM) and elements (Ni, Cu, Fe, Pb, V, and Zn) with an excellent linear correlation (0.69≤R≤0.98) between them. Magnetic susceptibility of paddy soil core NJ013, which had the same parent material as NJ008 but was far from pollution sources, showed stable values of magnetic concentration parameters along the whole core. Absolute values correspond to the so-called magnetic background value (below 20 cm) of NJ008. This indicates that pesticide and fertilizer had little effect on magnetic signals of the upper part of core NJ008 and the extremely enhanced magnetic concentration parameters originate from the steel company emission. Although, the arable soil does not reveal the pollution history and transportation due to annual ploughing, the significant linear relationship between magnetic concentration parameters and heavy metal contents suggests that magnetic parameters can serve as a proxy for quickly detecting soil metallic pollution and estimating the extent of contamination. | BLAHA U ROESLER W APPEL E | 2010 | Science China Earth Sciences2010,53,3: | 10 |
| 3 | Magnetic response to atmospheric heavy metal pollution recorded by dust-loaded leaves in Shougang industrial area, western Beijing显示文摘Fifty-five evergreen tree's leaves growing less than one year were collected from Shougang industrial area in western suburb of Beijing, including steel plants and its ambient residential areas, recreational parks and farmlands. Rock magnetic properties and heavy metal contents were studied. The results show that the magnetic properties of leaf samples are predominated by low-coercivity magnetite, and both the concentration and grain size of magnetite particles gradually decreased with the distance from the main pollution source increases. Moreover, there is a significant linear relationship between magnetic parameters (the low-field magnetic susceptibility, saturation isothermal remanent magnetization and anhysteretic remanent magnetization) and heavy metals contents (Fe, Pb, V, Cr and Zn) (0.73≤R≤ 0.88). Hence, the magnetic parameters of leaves can serve as a proxy for quick detecting of the recent atmospheric metallic pollution. | HU ShouYun DUAN XueMei SHEN MingJie U BLAHA W ROESLER YAN HaiTao E APPEL V HOFFMANN | 2008 | Chinese Science Bulletin2008,53,10: | 10 |
| 4 | Creep deformation in two phase titanium aluminide alloys 显示文摘 | Appel F Christoph U Oehring M | 2002 | Materials Science and Engineering2002,,: | 1 |
| 5 | A P450 BM-3 mutant hydroxylates alkanes,cycloalkanes,arenes and heteroarenes显示文摘 | Appel D Lutz-Wahl S Fischer P Schwaneberg U | 2001 | Journal of Biotechnology2001,88,2: | 1 |
| 6 | Recent Progress in the Development of Gamma Titanium 显示文摘 | Appel F Brossmann U Christoph U | 2000 | Advanced Engineering Materials2000,2,11: | 1 |
| 7 | Magnetic susceptihility of dust- loaded leaves as a proxy of traffic-related heavy metal pollu- tion in Kathmandu city,Nepal显示文摘 | Gautam P Blaha U Appel E | 2005 | Atmospheric Environment2005,39,12: | 1 |
| 8 | Magnetic susceptibility of dustloaded leaves as a proxy of traffic-related heavy metal pollution in Kathmandu city, Nepal 显示文摘 | Gautam P Blaha U Appel E | 2005 | Atmospheric Envi- ronment2005,39,: | 1 |
| 9 | Determination of an- thropogenic boundary depth in industrially polluted soil and semiquantification of heavy metal loads using mag- netic susceptibility显示文摘 | Blaha U Appel E Stanjek H | 2008 | Environmental Pollution2008,156,: | 1 |
| 10 | Sources of iron-formations in the Arohean Isua and Malene supracrustals, West Greenland: Evidence from La-Ce and Sm-Nd isotopic data and REE abundances显示文摘 | Shimizu H Umemoto N Masuda A Appel P W U | 1990 | Geochim Cosmochim Aeta1990,54,4: | 1 |
| 11 | Trace element systematics of the Neoarchean Fiskenaesset anorthosite complex and associated meta-volcanic rocks, SW Greenland: Evidence for a magmatic arc origin显示文摘 | Polar A Appel P W U Fryer B | 2009 | Preeambrian Research2009,175,: | 1 |
| 12 | An overview of the geochemis- try of Eoarehean to Mesoarchean ultramafic to marie volcanic rocks,SW Greenland: Implications for mantle depletion and petrogenetic processes at subduction zones in the early Earth 显示文摘 | Polat A Appel P W U Fryer B | 2011 | Gondwana Research2011,20,23: | 1 |
| 13 | Recent progress in the development of gamma titanium 显示文摘 | Appel F Brossmann U Christoph U | 2000 | Advanced Engineering Materials2000,2,11: | 1 |
| 14 | Magnetic susceptibility of dust- loaded leaves as a proxy of traffic-related heavy metal pollution in Kathmandu city, Nepal 显示文摘 | Gautam P Blaha U Appel E | 2005 | Atmospheric Environment2005,39,12: | 1 |
| 15 | Geochemistry of anorthositic differentiated sills in the Archean(2 970 Ma) Fiskeensset complex SW Greenland: Implications for parental magma compositions, geodynamic setting, and secular heat flow in arcs显示文摘 | Polat A Fryer 13 Appel P W U | 2011 | Lithos2011,123,: | 1 |
| 16 | Geochemistry of anorthositic differentiated sills in the Archean ( 2 970 Ma) Fiskenaesset complex,SW Greenland: Implications for paren- tal magma compositions,geodynamic setting, and secular heat flow in arcs显示文摘 | Polat A Fryer B J Appel P W U | 2011 | Lithos2011,123,: | 1 |
| 17 | 查看详情显示文摘 | J Appel P J Windpassinger D Oblak U B Hoff N Kj(ae)rgaard and E S Polzik | | 0,,: | 1 |
| 18 | Evidence-based guidelines for car- diovascular disease prevention in women显示文摘 | Mosca L Appel U Benjamin EJ | 2004 | Circulation2004,109,5: | 1 |
| 19 | Recent progress in the development of gamma titanium aluminide alloys 显示文摘 | APPEL F BROSSMANN U | 2000 | Advanced Engineering Materials2000,2,: | 1 |
| 20 | Determination of anthropogenic boundary depth in industrially polluted soil and semi-quantification of heavy metal loads using magnetic susceptibility显示文摘 | BLAHA U APPEL E STANJEK H | 2008 | Environmental Pollution2008,156,2: | 1 |