Auburn, Nov.
8---Earlier this year, critics hammered the Bush administration
for suspending a decision by the Clinton administration to adopt
stricter arsenic standards in drinking water.
But at least one expert believes the administration’s
decision to suspend the standard does not reflect insensitivity
toward drinking water safety.
"Until very recently a lot of the debate
regarding arsenic standards in drinking water has tended to be
political rather than grounded in detailed studies showing the need
for a stricter standard," says Dr. Jim Hairston, water quality
coordinator for the Alabama Cooperative Extension System.
In fact, Hairston says, the Environmental Protection
Agency has been criticized in some quarters for allowing political
pressure to influence policy-making. The Environmental Protection
Agency is the federal organization entrusted with safeguarding the
nation’s drinking water supply.
As he sees it, the Bush administration’s decision
to suspend the previous administration’s arsenic standard likely
stemmed from a genuine desire to restore a more methodical,
science-based approach to policy-making. The Clinton administration
proposal calls for reducing acceptable levels of arsenic in drinking
water from 50 parts per billion (ppb) to 10 ppb.
"It’s unlikely the Bush administration
suspended these standards just for the sake of doing so,"
Hairston says. "Scientists both within and outside EPA have
expressed concern that the agency has occasionally set standards
without sufficient scientific data to back them up."
Recently, an updated report from the National
Academy of Sciences (NAS) provided the Bush administration with the
justification it previously lacked to tighten the standards. The
report, released on September 11 by a panel especially appointed to
review arsenic risks, has left the administration with little choice
but to adopt more stringent standards, Hairston says.
It found a greater risk of lung and bladder cancer
as well as elevated blood pressure and diabetes from increased
exposure to arsenic.
The report’s findings are based on three new
epidemiological studies from Taiwan and Chile, all of which reveal
an association between bladder and lung cancer and prolonged
exposure to arsenic in drinking water.
The findings prompted EPA administrator Christine
Todd Whitman to reduce acceptable levels from 50 ppb to the 10 ppb
previously mandated by the Clinton administration.
While some Bush administration critics are pleased
with the decision, others have mixed emotions or believe the new
standards don’t go far enough.
The National Resources Defense Council, which had
originally sued the Clinton administration in May 2000 to lower the
level from 50 ppb, is among those with mixed emotions.
Although the Council had originally proposed of 3
ppb, heavy criticism from mining and wood-preserving industries
prompted it to alter this to 10 ppb instead.
Nevertheless, Hairston believes this will not stop
many groups, including the Council, from pushing for tighter
standards when more arsenic studies are completed.
"Some people already are advocating standards
as low as 5 and even 3 ppb," he says. "Considering it took
almost 50 years to lower the acceptable levels from 50 to 10 ppb,
they’re concerned it may take just as long to lower levels even
further. So they figure they’d better get a good head start."
The Bush administration’s decision to adopt 10 ppb
arsenic standard also appears to have been influenced by
congressional testimony of several groups who fear lowering
standards any further would cost too much while securing only
marginal benefits.
Even so, the Bush administration’s decision to
adopt the 10 ppb standard has alienated one group that previously
supported the administration’s earlier decision to suspend the
Clinton standard.
The National Rural Water Association, which
represents more than 2,000 small communities nationwide, fears the
standards will force households to pay between $100 and $500 more
for drinking water.
Whitman vows her agency will make money available to
local drinking water systems to soften the blow as they adjust to
these new standards. But spokespersons for the association say this
isn’t good enough. They predict a huge grassroots backlash will
follow when consumers learn just how much it will cost to comply
with these new standards.
(Source: Dr.
Jim Hairston, Extension Water Quality Coordinator,
334-844-3973.)