Phytoremediation of Urban Brownfields: a Case for Industrial Hemp

2828 Words Sep 15th, 2012 12 Pages
Phytoremediation of Urban Brownfields:
A Case for Industrial Hemp
By: Jeff Lemon Thursday, June 21, 2012


Brownfield Phytoremediation
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A Case for Industrial Hemp?
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Executive Summary
There are a number of reasons why we should care about brownfields. From encouraging urban sprawl through the ‘development’ of greenfields to their environmental impacts on soil, air and ground water, these properties are a drain upon the urban environment. Redevelopment of brownfields are complicated by the potential contamination of hazardous waste, heavy metals and pollution that has been left behind in the soil. Although this land can be used once the soil has been cleaned, landowners are not financially
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Financial, public and legal risks play a large role in the redevelopment of a brownfield. These risks (and the costs attributed redevelopment) are further compounded by the complexity of the site; depending upon the size, type, and contamination level of a given property.4 Each brownfield has its own story, its own history; no two brownfields are alike, as each comes with its own problems and challenges. It is because of this, that British Columbia Ministry of Environment has categorized brownfields into 3 separate categories, representing the standard deviation of potential redevelopment brownfield projects. At either side of the deviation (+/- 15 – 20%) are your ‘easy choices’ for redevelopment. If the sight is on the high end, then redevelopment pushes forward, driven by market forces because these properties are highly profitable once reclaimed. On the other hand, if it is on the low end, remediation and redevelopment costs are usually higher than the

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