کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8850215 | 1618709 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Magnetic evidence of anthropogenic dust deposition in urban soils of Shanghai, China
ترجمه فارسی عنوان
شواهد مغناطیسی از رسوب گرد و غبار آلودگی در خاک های شهری شانگهای، چین
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کلمات کلیدی
خاک خواص مغناطیسی، آلودگی، شانگهای،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
ژئوشیمی و پترولوژی
چکیده انگلیسی
The magnetic particulates from anthropogenic activities can be detected by magnetic methods rapidly and cost-effectively. This study focused on the investigation of vertical variations in magnetic properties in soil profiles and magnetic enhancement originating in Baoshan, Shanghai. Also the feasibility of using arable and urban park soils as a new context for magnetic monitoring was explored. A combination of magnetic and scanning electron microscopic (SEM) techniques was applied to three soil profiles. Non-pedogenic magnetic enhancement in topsoil was recorded at all three sites accompanied by coarsening of magnetic grain size. The dominant magnetic properties reflect multi-domain (MD) and pseudo-stable single domain (PSD) ferrimagnetic minerals. Both of magnetic concentrations and grain size decrease with the depth, depending on the pollutant input, soil type and degree of vertical mixing. SEM images confirmed the presence of anthropogenic particulates fly-ash. It was concluded from this study that topsoil magnetic enhancement arising from atmospheric contaminants was readily identifiable in both arable fields and urban parks, thus broadening the scope of magnetic research on urban and industrial pollution.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemie der Erde - Geochemistry - Volume 77, Issue 3, September 2017, Pages 421-428
Journal: Chemie der Erde - Geochemistry - Volume 77, Issue 3, September 2017, Pages 421-428
نویسندگان
Guan Wang, Feifan Ren, Jiao Chen, Yuan Liu, Fangzhou Ye, Frank Oldfield, Weiguo Zhang, Xiaodong Zhang,