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The Good News
Pg 4 - The Sunshine Express
2012 June
`PAD' Gives Instant Analysis
Colorado State University Professors Create
Low-Cost, Effective Method for Measuring
Exposure to Toxic Metals
Two Colorado State University professors have de-
veloped a simple, low-cost method of determining
levels of heavy metals in contaminated air using
filter paper, water and a little chemistry.
A device built by Chuck Henry, a chemistry profes-
sor, working in tandem with John Volckens, associ-
ate professor in Environmental and Radiological
Health Sciences, takes only minutes to determine
whether someone has been exposed to high levels
of airborne metals.
A new paper on the research appears this month in
the journal Analytical Chemistry.
"We hope to be able to understand what tasks and/
or locations in a particular job have the highest
exposure," Henry said. "Millions of U.S. workers
are exposed to heavy metals, and if we can identify
these exposures in a cost-effective manner, then we
should be able to help mitigate the problem and
protect the health of our industrial workforce."
How it works: The researchers first collect an air
sample onto a filter and then, using a hole punch,
remove a small portion of the sample for analysis.
This sample is placed onto their new technology,
called a Paper-based Analytical Device (PAD),
which tells them how much of a certain heavy
metal was present. The PAD is roughly the size of
a quarter and made using wax printed onto filter
Mission is to promote balanced, unbiased, respon-
paper. The wax is patterned into a "circuit" that
Popular Trails To Remain Open
sible use of public lands in collaboration with
directs the collected sample through a series of
Recreation Advocates Welcome News
recreational users of all interests, advocating respect,
channels and into various "reaction zones." Each
from Colorado Court
education and conservation of the environment.
reaction zone contains a tiny amount of chemical
Recreation advocates on May 25, welcomed news
www.papatelluride.org.
reagent that changes color when specific metals
that a federal court in Colorado refused to grant a
The mission of the SJTR is to improve opportuni-
are present. These color changes are detectable to
motion to immediately close 14 popular trails near
ties for off-highway vehicles and assure the best
the naked eye and can be quantified using a digital
the Rico-West Dolores area in southwest Colorado.
care of the land. SJTR promotes active participation
camera or a simple desktop scanner.
Backcountry Hunters and Anglers, Colorado Chap-
in OHV trail management and other civic activities
"Although our PADs are about the size of a quarter,
ter, have filed a lawsuit challenging motorized
and maintains a focused and ongoing dialogue with
they actually cost less than a nickel each," Volckens
access in the Rico West Dolores area of the San Juan
the San Juan National Forest and other public land
said. "They're simple enough that we can collect
National Forest. Earlier this spring they moved for a
planners. SJTR educates OHV users about "Tread
samples in the field and analyze them on site in a
preliminary injunction seeking a court order closing
Lightly" conservation practices and other trail use
matter of minutes. Other methods take weeks to
14 trails to motorized use. According to their papers,
issues. sanjuantrailriders.org.
process samples and cost hundreds of dollars per
the injunction was needed in early June to prevent
The Trails Preservation Alliance is a nonprofit
measurement."
irreparable harm that would be caused by resump-
organization dedicated to protecting the sport of
Initial studies in industrial areas have focused on
tion of historical use of the trails after snowmelt.
motorized trail riding, educating all user groups and
copper, nickel and iron, which can be toxic when
Plaintiffs therefore requested a hearing on their mo-
the public on the value of sharing public lands for
inhaled or ingested at high levels. Next up are tests
tion before early June. The preliminary injunction
multiuse recreation, while protecting public lands
with lead and cadmium, Henry said. The scientists
and voluminous associated filings were vigorously
for future generations. www.coloradotpa.org.
are working with the CSU Research Foundation to
opposed by the Forest Service and intervenors Colo-
COHVCO is a nonprofit organization whose
commercialize the invention.
rado Off Highway Vehicle Coalition (COHVCO),
member enthusiasts, organizations and businesses
Henry is co-founder and CEO of Advanced Mi-
Trail Preservation Alliance (TPA), San Juan Trail Rid-
collectively comprise over 200,000 Coloradoans and
croLabs LLC, which was formed to commercialize
ers (SJTR), Public Access Preservation Association
regular visitors to Colorado and other western states
a low-cost, rapid "lab-on-a-chip" invention with
(PAPA), and BlueRibbon Coalition (BRC).
who contribute millions of dollars and thousands
biomedical and environmental applications. To
On May 24, the Court held a hearing to consider "the
of hours annually to off-highway vehicle recreation
date, AML has raised more than $3 million in grant
request for a preliminary injunction hearing." After
through registration fees, retail expenditure, project
funding and is currently working to bring an in-
considering statements from counsel for all parties,
participation and related support. www.cohvco.org.
novative on-line monitoring sensor to the market in
the Court minutes state "no hearing will be set at
The BlueRibbon Coalition is a national recreation
the industrial cleanwater field.
this time." The Court set a schedule for presentation
group that champions responsible recreation, and
Volckens' research is aimed at understanding air
of the merits of the case, under which the final brief
encourages individual environmental stewardship.
pollution impacts on human and environmental
will be filed on August 17. The minutes further state,
With members in all 50 states, BRC is focused on
health and at developing engineering-based solu-
"if the Court deems oral argument necessary, it will
building enthusiast involvement with organizational
tions to air pollution problems in communities and
set that hearing."
efforts through membership, outreach, education,
workplaces worldwide.
As a result, it is apparent that no injunction prevent-
and collaboration among recreationists.
(source: news.colostate.edu)
ing continued motorized
www.sharetrails.org
travel on the 14 trails
20 More Years Of Space
will be entered at this
time. Access on those
BLM conveys land to City of Glenwood Springs
trails and other portions
The Bureau of Land Management on May 25
of the Rico West Dolores
conveyed 62.5 acres of BLM land to the City of
area will continue to be
Glenwood Springs to assist with its South Canyon
managed by the Forest
Landfill expansion.
Service under existing
The land is on the northern boundary of the current
regulations.
landfill and is predominantly a steep slope that is
Select documents from
not used by the public or for other purposes.
the court file are located
The City of Glenwood Springs applied for the con-
here: www.sharetrails.
veyance under the Recreation and Public Purposes
org/legal/rico-dolores
Act. This act authorizes the sale or lease of public
PAPA is a regional
lands for recreational or public purposes to state and
recreation group that
local governments and to qualified nonprofit orga-
supports and champions
nizations. BLM released the Environmental Assess-
access and responsible
ment on the proposal for public review in June 2011.
use of public lands, and
"This conveyance benefits the citizens of Glenwood
encourages individual
Springs and Garfield County by extending the life of
environmental
this landfill by 20 to 25 years," said BLM Colorado
stewardship. PAPA's
River Valley Field Manager Steve Bennett.