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Distribution and transport of copper and lead in the Blackstone River, Massachusetts.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Distribution and transport of copper and lead in the Blackstone River, Massachusetts./
作者:	Ozdilek, Hasan Goksel.
面頁冊數:	1 online resource (246 pages)
附註:	Source: Dissertation Abstracts International, Volume: 63-05, Section: B, page: 2525.
Contained By:	Dissertation Abstracts International63-05B.
標題:	Environmental engineering. -
電子資源:	click for full text (PQDT)
ISBN:	9780493683478

Distribution and transport of copper and lead in the Blackstone River, Massachusetts.
Ozdilek, Hasan Goksel.

Distribution and transport of copper and lead in the Blackstone River, Massachusetts. - 1 online resource (246 pages)

Source: Dissertation Abstracts International, Volume: 63-05, Section: B, page: 2525.

Thesis (Ph.D.)--Worcester Polytechnic Institute, 2002.

Includes bibliographical references

Because of their persistence in the environment (as well as their susceptibility to bioaccumulation and biomagnification processes), heavy metals often pose threats to aquatic life in the environment. The Blackstone River, located in south-central Massachusetts and Rhode Island, is an example of a water body that has been plagued by these problems. Extensive historical contamination in this river has resulted in the bottom sediments with extremely high metals concentrations. However, the sources and processes governing the subsequent mobilization of these metals are still poorly understood.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9780493683478Subjects--Topical Terms:

557376
Environmental engineering.
Index Terms--Genre/Form:

554714
Electronic books.

Distribution and transport of copper and lead in the Blackstone River, Massachusetts.
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245 1 0 $a Distribution and transport of copper and lead in the Blackstone River, Massachusetts.
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300 $a 1 online resource (246 pages)
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500 $a Source: Dissertation Abstracts International, Volume: 63-05, Section: B, page: 2525.
500 $a Adviser: Paul Peter Mathisen.
502 $a Thesis (Ph.D.)--Worcester Polytechnic Institute, 2002.
504 $a Includes bibliographical references
520 $a Because of their persistence in the environment (as well as their susceptibility to bioaccumulation and biomagnification processes), heavy metals often pose threats to aquatic life in the environment. The Blackstone River, located in south-central Massachusetts and Rhode Island, is an example of a water body that has been plagued by these problems. Extensive historical contamination in this river has resulted in the bottom sediments with extremely high metals concentrations. However, the sources and processes governing the subsequent mobilization of these metals are still poorly understood.
520 $a This dissertation characterizes the sources, distribution, and transport characteristics of metals in the Blackstone River. For this case, copper and lead are selected for in-depth study since these cations demonstrate differing interactions with the sediment. Analyses of sediments in selected reaches of the Blackstone River show that bottom sediments are important sources of heavy metals. Laboratory analyses of catch-basin cleanings from the City of Worcester also reveal high metals concentrations, indicating that sediment-laden runoff from the City of Worcester may also contribute to heavy metal pollution. The role of sedimentation and desorption due to mixing were explored using a sedimentation test and a series of TCLP-based desorption tests. In addition, the relationships between streamflow and heavy metals were examined using long-term daily measurements and short-term hourly measurements during both dry and wet weather flow conditions. Sedimentation is found to be important during low flow conditions, while resuspension (leading to mobilization of the metals) is found to be especially prevalent during higher flow events. The Biotic Ligand Model (BLM) was applied to characterize metal partitioning and transport.
520 $a Since the system is relatively well mixed, the heavy metals in the water column also become available to the riverbank and affect vegetation. Therefore, selected plant species were analyzed to assess the concentrations of copper and lead in vegetation adjacent to the river. Total copper and lead concentrations were observed to decrease with respect to the distance from the riverbank. While aquatic species are conventionally used to evaluate toxicity of heavy metals, this investigation indicates that riverbank vegetation samples can also serve as pollution monitoring and evaluation tool.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Environmental engineering. $3 557376
650 4 $a Environmental science. $3 1179128
655 7 $a Electronic books. $2 local $3 554714
690 $a 0775
690 $a 0768
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a Worcester Polytechnic Institute. $3 1192132
773 0 $t Dissertation Abstracts International $g 63-05B.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3053662 $z click for full text (PQDT)