It's the material chosen by the Charlestown Citizens Alliance (CCA) for a vanity project
By Joanna Allhands, Arizona State University
Edited by Sadie Harley, reviewed
by Robert Egan
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| In Charlestown, we have "Faith's Folly," a lasting monument to the Charlestown Citizens Alliance's hypocrisy and cronyism. Despite opposing asphalt use elsewhere in Charlestown, the CCA allowed tons of asphalt to be used on a bike path pushed by CCA founding member Faith LaBossiere. LaBossiere sold the project to the CCA-controlled Town Council claiming it would only cost $7000 (see below). The actual cost turned out to be $266,927 plus interest on the bond leading to a cost over-run of 4,000%. |
If you piled all of Phoenix's pavement into one spot, it
would be enough to cover San Francisco four times over. Roads, parking lots,
and other paved surfaces blanket a lot of land—an estimated 40% of Arizona's capital city.
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From the Power Point presentation shown the Council by Faith Labossiere. |
Pavement absorbs heat during the day and releases it slowly
at night via the urban heat island effect, increasing the amount of energy that cities consume.
But for Elham Fini, a senior scientist affiliated with the
Julie Ann Wrigley Global Futures Laboratory at Arizona State University,
pavement's potential impact on our health deserves as much attention as its
carbon or energy footprint.
"To make something truly sustainable," she said,
"you cannot ignore the human side of it."
Asphalt fumes can be hard on health
Fini—a faculty member in ASU's School of Sustainable
Engineering and the Built Environment—spent years studying why asphalt breaks
down so quickly.
Suliman Rashid, a graduate teaching associate in the School
of Sustainability at Arizona State University, moves samples of an asphalt
binder made from leftover forest-thinning material. Credit: Joanna Allhands
That work pointed her toward the volatile organic compounds
that escape from bitumen, the black, sticky petroleum byproduct that holds
asphalt together.
Two studies in the Journal of Hazardous Materials and Science of the Total Environment shed light on how
the compounds that give asphalt its trademark scent change after sunset and
form ultrafine particles, which can worsen air quality.
These carbon-based vapors are continuously released but
become more noticeable on hot, sunny days. They can cause dizziness and difficulty breathing in the short
term.
Long-term exposure also can elevate the risk
of lung cancer, a major concern for construction workers who regularly
breathe these fumes without a respirator.