US Air Force sprays Harvey-stricken Texas with controversial chemicals
Vehicles
on Interstate 10 navigate through flood waters caused by Tropical
Storm Harvey in Vidor, Texas, U.S. August 31, 2017. © Adrees Latif /
Reuters
RT,
14
September, 2017
The
US Air Force is spraying 6 million acres in Texas with potentially
harmful insecticides, as the state tries to rid itself of swarms of
mosquitoes nesting in flooded areas after Hurricane Harvey.
The
work began this past weekend with the military using low-flying C-130
cargo planes to douse three counties with Naled, an organophosphate
(OP) insecticide, according to Reuters.
“Due
to the large amount of standing, polluted water, populations of pest
insects that can transmit diseases are increasing
significantly,” Captain
Jeff Kelly, Air
Force spokesman
said in a statement. “This
poses a health risk to rescue workers and residents of Houston.”
Post-Harvey aerial mosquito spraying over 6,000 acres of greater Houston set for Thursday night
It’s
intended that the spraying will prevent mosquito-borne diseases and
prevent emergency response slowdowns by workers inundated by biting
insects.
Hurricane
Harvey, which began as a Category 4 storm, dumped more than 40 inches
(1,000 mm) of rain on parts of Texas over the course of four days.
The resulting floods affected hundreds of thousands of homes,
displacing more than 30,000 people and prompting more than 17,000
rescues.
Naled,
a neurotoxin sold under the brand name Dibrom, works by killing an
enzyme in insects and leads to overstimulating the nervous system,
causing nausea, dizziness and confusion and at high exposure,
respiratory paralysis and death.
Naled
has been widely used in the US since 1950, but it was prohibited for
use by by the European Union in 2012 over concerns it might affect
human health.
“The
scenarios evaluated in the human health risk assessment as well as in
the environmental risk assessment showed a potential and unacceptable
risk,” the
EU wrote about its decision.
The
UN classifies the insecticide as a 6.1 inhalation hazard.
However,
the USCenters for Disease Control and Prevention and the US
Environmental Protection Agency support the use of the insecticide
and say that small amounts don't expose people enough to pose a
health concern. The US Air Force agrees.
“The
system disperses droplets small enough to land on a mosquito’s
wing, using less than one ounce of naled per acre. That’s less than
one shot glass for an area the size of a football field,”an
Air Force spokesperson said.
Naled
is used elsewhere in the US, with health departments spraying about
one million pounds on 16 million acres each year – especially after
disasters like hurricanes and flooding – to curb mosquitos.
About 70 percent is used for pest control, while around 30 percent is
used in agriculture for cotton production in California and
Louisiana, on alfalfa in Idaho and Oregon, and on grapes in
California.
The
military has used its aerial spray missions before, following the
2005 Hurricanes Katrina and Rita, which heavily damaged the Gulf
Coasts of Louisiana, Mississippi and Texas.
Though
the US government considers naled safe, experts have found
potentially dangerous side effects.
In
2016, naled spraying caused millions on honeybee deaths in South
Carolina. It is now understood that it is better to spray during dawn
and dusk, when bees are normally in their hives.
Pesticide
Action Network (PAN)
states that long-term impacts of Naled exposure can be serious —
particularly for children — as it is a hormone disruptor and a
reproductive and developmental toxin.
Many
studies have also linked prenatal exposure to OP pesticides to
neurological harms, including increased risk of autism and reduced IQ
levels, as it may cross the placenta if it is in the bloodstream of a
mammal.
In
2016, a study from researchers at the University
of California, Berkeley found
that when pregnant mothers live within one kilometer of fields where
certain pesticides are used, their children are more likely to have
lower IQs.
Other
species are also affected. A University of Florida zoologist, Tom
Emmel,
studied areas in Florida where the regular mosquito spraying occurred
with Dibrom and another insecticide. He found a “major
loss" in
insect diversity in sprayed sites with wasps showing “some
of the most dramatic drops in species diversity, whereas scale
insects increased."
Naled
is also considered moderately toxic to birds and most aquatic
life.The mule deer, however, is among those most resistant to its
effects.
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