کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9458869 | 1311312 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Source proximity reflected in spatial and temporal variability in particle and vapor phase Hg concentrations in Detroit, MI
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علم هواشناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Source proximity reflected in spatial and temporal variability in particle and vapor phase Hg concentrations in Detroit, MI Source proximity reflected in spatial and temporal variability in particle and vapor phase Hg concentrations in Detroit, MI](/preview/png/9458869.png)
چکیده انگلیسی
Vapor-phase Hg, particulate Hg, and total suspended particulate matter were collected from 1 April 1996-31 October 1996 at two sites located in industrial areas of northeast and southwest Detroit, at a suburban residential site 2 km west of Detroit, and at a rural site 60 km west of Detroit as part of a larger study designed to assess the Hg cycling within the urban area. Near-source short-range transport can cause large differences in pollutant concentration and deposition within a small geographic area. Hg deposition and the resulting impact on the local environment is a result not only of the ambient concentrations present, but of the chemical form and physical properties of the pollutant. All site-to-site differences in vapor phase Hg concentration were statistically significant (p<0.05) with mean concentrations ranging from 1.6-2.8 ng mâ3. The mean particulate Hg concentrations ranged from 12.0-54.0 pg mâ3 with concentrations at the less industrialized sites significantly lower than those at the industrialized sites (p<0.05). Hg associated with coarse particles (diameter⩾2.5 μm) had a median daily contribution of 37% to the total (range 4-68%) in south-west Detroit vs. a median daily contribution of 20% at the rural sampling site (range 6-37%).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Atmospheric Environment - Volume 39, Issue 2, January 2005, Pages 353-358
Journal: Atmospheric Environment - Volume 39, Issue 2, January 2005, Pages 353-358
نویسندگان
Amy E. Gildemeister, Joseph Graney, Gerald J. Keeler,