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Mercury and Organic Matter Concentrations in Lake and Stream Sediments in relation to One Another and to Atmospheric Mercury Deposition and Climate Variations across Canada
المؤلفون المشاركون
المصدر
العدد
المجلد 2017، العدد 2017 (31 ديسمبر/كانون الأول 2017)، ص ص. 1-21، 21ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2017-01-03
دولة النشر
مصر
عدد الصفحات
21
التخصصات الرئيسية
الملخص EN
This article focuses on analyzing the Geological Survey of Canada (GSC) data for total mercury concentrations (THg) in lake and stream sediments.
The objective was to quantify how sediment THg varies by (i) sediment organic matter, determined by loss on ignition (LOI) at 500∘C, (ii) atmospheric Hg deposition (atm.
H g d e p ) as derived from the Global/Regional Atmospheric Heavy Metals Model GRAHM2005, and (iii) mean annual precipitation and mean monthly July and January temperatures ( T J u l y , T J a n ).
Through regression analyses and averaging by National Topographic System tiles (NTS, 1:250,000 scale), it was found that 40, 70, and 80% of the sediment THg, LOI, and atm.
H g d e p variations were, respectively, related to precipitation, T J u l y , and T J a n .
In detail, lake sediment THg was related to atm.
H g d e p and precipitation, while stream sediment THg was related to sediment LOI and T J u l y .
Plotting sediment THg versus sediment LOI revealed a curvilinear pattern, with highest Hg concentrations at intermediate LOI values.
Analysing the resulting 10th and 90th log10THg percentiles within each 10% LOI class from 0 to 100% revealed that (i) atm.
H g d e p contributed to the organic component of sediment THg and (ii) this was more pronounced for lakes than for streams.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Nasr, Mina& Arp, Paul A.. 2017. Mercury and Organic Matter Concentrations in Lake and Stream Sediments in relation to One Another and to Atmospheric Mercury Deposition and Climate Variations across Canada. Journal of Chemistry،Vol. 2017, no. 2017, pp.1-21.
https://search.emarefa.net/detail/BIM-1172532
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Nasr, Mina& Arp, Paul A.. Mercury and Organic Matter Concentrations in Lake and Stream Sediments in relation to One Another and to Atmospheric Mercury Deposition and Climate Variations across Canada. Journal of Chemistry No. 2017 (2017), pp.1-21.
https://search.emarefa.net/detail/BIM-1172532
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Nasr, Mina& Arp, Paul A.. Mercury and Organic Matter Concentrations in Lake and Stream Sediments in relation to One Another and to Atmospheric Mercury Deposition and Climate Variations across Canada. Journal of Chemistry. 2017. Vol. 2017, no. 2017, pp.1-21.
https://search.emarefa.net/detail/BIM-1172532
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1172532
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر
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