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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Wender, Ben A. Linkov, Igor Bates, Matthew E. Fox-Lent, Cate Seymour, Linda |
| Description | Author Affiliation: Bates ME ( Environmental Laboratory, Engineer Research and Development Center, US Army Corps of Engineers, 696 Virginia Rd, Concord, MA 01742, USA. Electronic address: Matthew.E.Bates@usace.army.mil.); Fox-Lent C ( Environmental Laboratory, Engineer Research and Development Center, US Army Corps of Engineers, 696 Virginia Rd, Concord, MA 01742, USA. Electronic address: Catherine.Fox-Lent@usace.army.mil.); Seymour L ( Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA 02139, USA. Electronic address: lseymour@mit.edu.); Wender BA ( School of Sustainable Engineering and the Built Environment, Arizona State University, 411 North Central Avenue, Phoenix, AZ 85004, USA. Electronic address: bwender@asu.edu.); Linkov I ( Environmental Laboratory, Engineer Research and Development Center, US Army Corps of Engineers, 696 Virginia Rd, Concord, MA 01742, USA. Electronic address: Igor.Linkov@usace.army.mil.) |
| Abstract | Dredging to maintain navigable waterways is important for supporting trade and economic sustainability. Dredged sediments are removed from the waterways and then must be managed in a way that meets regulatory standards and properly balances management costs and risks. Selection of a best management alternative often results in stakeholder conflict regarding tradeoffs between local environmental impacts associated with less expensive alternatives (e.g., open water placement), more expensive measures that require sediment disposal in constructed facilities far away (e.g., landfills), or beneficial uses that may be perceived as risky (e.g., beach nourishment or island creation). Current sediment-placement decisions often focus on local and immediate environmental effects from the sediment itself, ignoring a variety of distributed and long-term effects from transportation and placement activities. These extended effects have implications for climate change, resource consumption, and environmental and human health, which may be meaningful topics for many stakeholders not currently considered. Life-Cycle Assessment (LCA) provides a systematic and quantitative method for accounting for this wider range of impacts and benefits across all sediment management project stages and time horizons. This paper applies a cradle-to-use LCA to dredged-sediment placement through a comparative analysis of potential upland, open water, and containment-island placement alternatives in the Long Island Sound region of NY/CT. Results suggest that, in cases dealing with uncontaminated sediments, upland placement may be the most environmentally burdensome alternative, per ton-kilometer of placed material, due to the emissions associated with diesel fuel combustion and electricity production and consumption required for the extra handling and transportation. These results can be traded-off with the ecosystem impacts of the sediments themselves in a decision-making framework. |
| ISSN | 00489697 |
| Journal | Science of The Total Environment |
| Volume Number | 511 |
| e-ISSN | 18791026 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2015-04-01 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Environmental Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Waste Management and Disposal Pollution Environmental Engineering |
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