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Geostatistical and Geospatial Distri...

Almesleh, Najwah Alssaeidi Ahmed.

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Geostatistical and Geospatial Distribution of Multiple Metallic Elements in Agricultural Regions of The Mid-Continental Usa.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Geostatistical and Geospatial Distribution of Multiple Metallic Elements in Agricultural Regions of The Mid-Continental Usa./
Author:	Almesleh, Najwah Alssaeidi Ahmed.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2018,
Description:	249 p.
Notes:	Source: Dissertations Abstracts International, Volume: 81-02, Section: B.
Contained By:	Dissertations Abstracts International81-02B.
Subject:	Biogeochemistry. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13424877
ISBN:	9781085585774

Geostatistical and Geospatial Distribution of Multiple Metallic Elements in Agricultural Regions of The Mid-Continental Usa.
Almesleh, Najwah Alssaeidi Ahmed.

Geostatistical and Geospatial Distribution of Multiple Metallic Elements in Agricultural Regions of The Mid-Continental Usa. - Ann Arbor : ProQuest Dissertations & Theses, 2018 - 249 p.

Source: Dissertations Abstracts International, Volume: 81-02, Section: B.

Thesis (Ph.D.)--The University of Texas at El Paso, 2018.

This item must not be sold to any third party vendors.

Regional geochemical mapping constitute the chemistry of the surface of the earth in a large scale and relatively low sample density. It is widely accepted scientific activity and man uses some cases to identify contamination. In the present study, data present in national geochemical survey database was used to investigate the chemical loading loading of the agricultural soil. In the mid-continent region of the United States. Several traditional parameters were used mainly the enrichment factor (EF), and geoaccumulation index (Igeo). Total chemical influence (TCI) maps were used to guide sampling. In addition, regional trace element chemistry of bedrock was created and residual geochemical mapping was initiated. The heavy metals selected for this study include As, Cd, Co, Cr, Cu, Hg, Mn, Ni, Pb, Se, V, and Zn, selected in the basis of toxicity and maximum permitted limit (MPL). Analysis in this study showed that Co, Cu, V, and Zn with high concentrations values (outliers) could be potentially associated with potential anthropogenic applications. Principal Component Analysis (PCA) showed one family has a strong correlation including the elements As, Co, Cr, Ni, and Zn. Maps of loess distribution and glacial encroachment were investigated to test the influence in soil chemistry. Point sourness of chemical emissions were also considered, but except few cases, there were no influences in soil chemical anomalous. The heavy metals in geochemical maps within values 1.4-7.6 investigated anthropogenic outputs from different point sources ranging from moderate to substantially enriched soil EF's.. It is not evident that air releases contributed to heavy metals in soil chemistry. Surprisingly, the results of generated litheogeochemical maps showed different aspects of soil chemistry. The soil chemistry of these states reflects anthropogenic activities. Considering the spatial variations of soil chemistry, approximately 70% of the soil suffered from overloading of heavy metals. Certain biological properties of the soil were determined to test soil fertility. PO43- is the most abundant nutrient in the soil. High values observed in some regions in Midwest of USA implies great chemical inputs by the human rather than natural sources, causing important implications for soil fertility. The results suggest possible long time overloading of fertilizers inputs into the surface soil of agricultural regions n mid-continent of USA.

ISBN: 9781085585774Subjects--Topical Terms:

545717
Biogeochemistry.
Subjects--Index Terms:

Chemical loading

Geostatistical and Geospatial Distribution of Multiple Metallic Elements in Agricultural Regions of The Mid-Continental Usa.
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245 1 0 $a Geostatistical and Geospatial Distribution of Multiple Metallic Elements in Agricultural Regions of The Mid-Continental Usa.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2018
300 $a 249 p.
500 $a Source: Dissertations Abstracts International, Volume: 81-02, Section: B.
500 $a Advisor: Goodell, Philip.
502 $a Thesis (Ph.D.)--The University of Texas at El Paso, 2018.
506 $a This item must not be sold to any third party vendors.
520 $a Regional geochemical mapping constitute the chemistry of the surface of the earth in a large scale and relatively low sample density. It is widely accepted scientific activity and man uses some cases to identify contamination. In the present study, data present in national geochemical survey database was used to investigate the chemical loading loading of the agricultural soil. In the mid-continent region of the United States. Several traditional parameters were used mainly the enrichment factor (EF), and geoaccumulation index (Igeo). Total chemical influence (TCI) maps were used to guide sampling. In addition, regional trace element chemistry of bedrock was created and residual geochemical mapping was initiated. The heavy metals selected for this study include As, Cd, Co, Cr, Cu, Hg, Mn, Ni, Pb, Se, V, and Zn, selected in the basis of toxicity and maximum permitted limit (MPL). Analysis in this study showed that Co, Cu, V, and Zn with high concentrations values (outliers) could be potentially associated with potential anthropogenic applications. Principal Component Analysis (PCA) showed one family has a strong correlation including the elements As, Co, Cr, Ni, and Zn. Maps of loess distribution and glacial encroachment were investigated to test the influence in soil chemistry. Point sourness of chemical emissions were also considered, but except few cases, there were no influences in soil chemical anomalous. The heavy metals in geochemical maps within values 1.4-7.6 investigated anthropogenic outputs from different point sources ranging from moderate to substantially enriched soil EF's.. It is not evident that air releases contributed to heavy metals in soil chemistry. Surprisingly, the results of generated litheogeochemical maps showed different aspects of soil chemistry. The soil chemistry of these states reflects anthropogenic activities. Considering the spatial variations of soil chemistry, approximately 70% of the soil suffered from overloading of heavy metals. Certain biological properties of the soil were determined to test soil fertility. PO43- is the most abundant nutrient in the soil. High values observed in some regions in Midwest of USA implies great chemical inputs by the human rather than natural sources, causing important implications for soil fertility. The results suggest possible long time overloading of fertilizers inputs into the surface soil of agricultural regions n mid-continent of USA.
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650 4 $a Geochemistry. $3 539092
650 4 $a Chemistry. $3 516420
653 $a Chemical loading
653 $a Enrichment factor
653 $a Geoaccumulation
653 $a Geochemical map
653 $a Heavy metals
653 $a Metallic elements
690 $a 0425
690 $a 0996
690 $a 0485
710 2 $a The University of Texas at El Paso. $b Environ. Sci. & Eng.. $3 3194056
773 0 $t Dissertations Abstracts International $g 81-02B.
790 $a 0459
791 $a Ph.D.
792 $a 2018
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13424877