Full TGIF Record # 53313
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Web URL(s):http://onlinelibrary.wiley.com/doi/10.1111/j.1752-1688.1995.tb03420.x/epdf
    Last checked: 10/08/2015
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Publication Type:
i
Report
Author(s):Griffin, Carol B.
Author Affiliation:Watershed Center Manager, Henry's Fork Foundation, P.O. Box 852, Ashton, Idaho 83420
Title:Uncertainty analysis of BMP effectiveness for controlling nitrogen from urban nonpoint sources
Source:Water Resources Bulletin. Vol. 31, No. 6, December 1995, p. 1041-1050.
# of Pages:10
Publishing Information:Bethesda, MD: American Water Resources Association.
Keywords:TIC Keywords: Best management practices; Evaluations; Nitrogen partitioning; Nonpoint source pollution; Recommendations; Removal; Urban habitat
Abstract/Contents:"The effectiveness of urban Best Management Practices (BMP) in achieving the No-Net-Increase Policy (NNIP), a policy designed to limit nonpoint nitrogen loading to Long Island Sound (LIS), is analyzed. A unit loading model is used to simulate annual nitrogen exported from the Norwalk River watershed (connnecticut) under current and future conditions. A probabilistic uncertainty analysis is used to incorporate uncertainty in nitrogen export coefficients and BMP nitrogen removal effectiveness. The inclusion of uncertainty in BMP effectiveness and nitrogen export coefficients implies that additional BMPs, or BMPs with a greater effectiveness in nitrogen removal, will be required to achieve the NNIP. Even though including uncetainty leads to an increase in BMP implementation rates or BMP effectiveness, this type of analysis provides the decision maker with a more realistic assessment of the likelihood that implementing BMPs as a management strategy will be successful. Monte Carlo simulation results indicate that applying BMPs to new urban developments alone will not be sufficient to achieve the NNIP since BMPs are not 100 percent effective in removing the increase in nitrogen caused by urbanization. BMPs must also be applied to selected exhisting urban areas. BMPs with a nitrogen removal effectiveness of 40-60 percent, probably the highest level of removal that can be expected over an entire watershed, must be applied to at least 75 percent of the existing urban area to achieve the NNIP. This high rate of application is not likely to be achieved in urbanized watersheds in the LIS watershed; therefore, additional point source control will be necessary to achieve the NNIP."
Language:English
References:25
Note:Figures
Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Griffin, C. B. 1995. Uncertainty analysis of BMP effectiveness for controlling nitrogen from urban nonpoint sources. Water Resour. Bull. 31(6):p. 1041-1050.
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Web URL(s):
http://onlinelibrary.wiley.com/doi/10.1111/j.1752-1688.1995.tb03420.x/epdf
    Last checked: 10/08/2015
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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