mrs. gamari physical science. land that was previously used for industrial or commercial purposes...
TRANSCRIPT
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Brownfield SitesMrs. Gamari
Physical Science
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What is a Brownfield Site? Land that was previously used for
industrial or commercial purposes and is possibly contaminated by hazardous waste or pollution.
The land should be able to be reused once the contaminants are cleaned up!
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Example of a Brownfield
Dumelow, 2007 http://en.wikipedia.org/wiki/File:Soilcontam.JPG
Soil contamination caused by underground storage tanks containing tar. Encountered during remediation works at a disused gasworks.
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Where are Brownfields located?
Abandoned factories Abandoned commercial buildings Dry-cleaning businesses Gas stations Landfills Transportation stations
(bus/air/railroad)
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What types of pollutants contaminate Brownfield sites?
Hydrocarbon spillages
Pesticides
Solvents
Heavy metals such as lead
Tributyltins
asbestos
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Why should we fix them up?
Eliminate the environmental and safety hazards they pose
Increase property values
Take advantage of underused land
Bring new jobs and more tax revenue into community
Eliminate “eyesores” or “blight”
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From these….
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To these…
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How do we clean up Brownfield Sites?
Bioremediation
In situ oxidation
Soil vapor extraction
Phytoremediation
Iron-curtain barrier
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Where are Brownfields in your Community?