Poison In The Grass:
The Hazards And Consequences Of Lawn
Pesticides
Nathan
Diegelman The S.T.A.T.E. Foundation
bl891@FreeNet.Buffalo.EDU
As the use of lawn chemicals and pesticides has
grown, questions have arisen regarding safety hazards and environmental
consequences. This report gives factual findings to help answer many of
these concerns. Some of them may seem
shocking, since the chemical pesticide industry has made every effort to
keep this information from the public. Everything that follows in this
report is documented and supported by the U.S.Federal Government, private
agencies, and other experts.
Contrary to what lawn "care" companies
would like people to believe, herbicides (weed killers) and other pesticides
are not "magic bullets". They are broad spectrum biocides, and
by their very nature can harm organisms other than targeted species. This
includes homeowners and their families, neighbors, pets, and all other
forms of life. The pesticide industry downplays this by claiming their
chemicals are heavily diluted, but doesn't mention the toxins are still
extremely dangerous in small amounts. They also are unwilling to mention
all of what is in their mixtures. Many components are classified as "inert",
which allows them
to be kept hidden from the public and not listed on product labels. These are
more than just fillers or solvents. "Inert" does not mean "inactive" -
some, such as benzene and xylene, are more toxic than listed chemicals.(1,2)
Listed
chemicals can be just as dangerous. They include components of war-time
defoliants like Agent Orange, nerve-gas type insecticides, and artificial
hormones. Some the Federal Government has even prohibited from use on it's
own property. Many pesticides are not safe when dry. Water evaporates,
but most pesticides remain and continue to release often odorless and invisible
toxic vapors. In areas where lawn spraying is common, they accumulate in
a toxic smog throughout the entire season. Some pesticides remain active
for years after application. DDT is still showing up in higher rates in
women's breast milk than the government permits in cow's milk.(4) Fat soluble
pesticides accumulate over time in our bodies, then are released at potentially
toxic levels when illness or stress results in our fat reserves being metabolised.A
large portion of a woman's
lifetime exposure to such pesticides is released in the breast milk for
her firstborn child.(37)
It is a violation of U.S.Federal law to claim
pesticides are "safe
when used as directed" since nothing can assure safety.(2,3,5) (However,
Agriculture Canada, the federal agency responsible until recently for licensing
pesticides in Canada, routinely used this statement, adding for good measure
that "most pesticides are safer than table salt". Fortunately,
pesticides in Canada are now licensed by Health Canada.) Some pesticides
labeled "bio-degradable" degrade
into compounds more dangerous than
the original. Examples include Mancozeb, which degrades into a substance that
is an EPA-classified probable carcinogen.(6) The pesticide industry also
implies that "organic" means safe and natural (for example, "Nature's
Lawn"),
knowing that the term legally may be applied to any compound containing
carbon and hydrogen. ChemLawn and other lawn "care" companies
and manufacturers have often been sued for fictitious claims.(5-14) Many
applicators are just as conniving and deceitful, using statements like "absolutely
cannot harm children or pets" and "perfectly safe
for the environment" to mislead the public. The New York State Attorney
General
s Office sued Dow Elanco chemical company when they claimed that Dursban shows "no
evidence of significant risk to the environment" when right
on the label is stated "this pesticide is toxic to birds and extremely toxic
to
fish and aquatic organisms".(15) A few years later on May 2, 1995, the EPA
fined Dow Elanco for "failing to report to the Agency information on adverse
health effects (to humans) over the past decade involving a number of pesticides,
including chlorpyrifos (brand name Dursban)". Most of the information came
from personal injury claims against Dow Elanco which the company had hidden from
the EPA. Now it is even being found that chlorpyrifos causes multiple sclerosis.(38)
Some companies have even made claims that their products better the environment. "Funk" lawn
care of New York has coined the phrase "Growing
A Better Environment" in order to fool consumers into believing lawn chemicals
pose no ecological harm. Another states "a 50-by-50 foot lawn produces enough
oxygen
to sustain a family of four." But this is only true with a plot of land
that
has tall grass and no lawn care. Pesticides, lawnmower fumes and common lawn
care
practices actually create a net destruction of oxygen.(16)
The United States
General Accounting Office, the investigative arm of Congress, has also tried
to alert the public to lawn chemical dangers. GAO's undercover team noted
many fictitious claims by many in the lawn "care" industry.(35)
Many included illegal claims of product safety. Others were just deceiving,
such as the ChemLawn claim that a child would have to ingest ten cups of
treated grass clippings to equal the toxicity of one baby aspirin. In fact,
the real danger is not that people will be grazing the lawn but that most
poisonings come from inhaling pesticide residues or absorbing them through
the skin.(6,7,10)
Most do-it-yourselfers are just as ignorant when it comes
to proper protection and safety precautions. Studies show most don't even
look at the warnings on their toxins. They don't wear gloves, goggles,
or protective clothing to decrease exposure. Worse, many don't keep people
off the contaminated area after chemicals are applied. Homeowners commonly
use up to ten times as much pesticides per acre as farmers.(7,17) A Virginia
Tech study for the state legislature found that most homeowners have no
idea how much nitrogen they use when fertilizing and that they apply chemicals
in ways that damage water supplies.(18)
Pesticides drift and settle during
application. In the Antarctic ice pack alone there are 2.4 million pounds
of DDT and its metabolites from years past.(26) Pesticides engulf the home
and are easily tracked inside, readily inhaled and absorbed through the
skin. They do harm by attacking the central nervous system and other essential
organs. Symptoms of pesticide poisoning are often deceptively simple, commonly
mis-diagnosed as flu or allergies. They include, but are not limited to,
headaches, nausea, fever, breathing difficulties, seizures, eye pains,
vomiting, cramps, diarrhea, sore nose, tongue, or throat; burning skin,
rashes, coughing, muscle pain, tissue swelling, blurred vision, numbness
and tingling in hands or feet, incontinence, anxiety, irritability, sleep
disorders, hyperactivity, fatigue, dizziness, irregular heartbeat, high
blood pressure, spontaneous bleeding, and temporary paralysis. Long-term
consequences include lowered fertility, birth defects, miscarriages,
blindness, liver and kidney dysfunction, neurological damage, heart trouble,
stroke, immune system disorders, menstrual problems, memory loss, suicidal
depression, cancer, and death. The National Academy of Sciences reports
that at least one out of seven people are significantly harmed by pesticide
exposure each year.(3) Increasingly, reports from many people around the
country are "beginning to link feeling terrible with the fact the
neighbors had the lawn sprayed the day before", notes Catherine Karr,
a toxicologist for the National Coalition Against The Misuse Of Pesticides.(7)
Unfortunately, except for industrial accidents, tests for pesticide poisoning
are rarely performed, partially because they are expensive. Doctors also
attribute them to stress, allergies, influenza, or an overactive imagination.(3)
Many Americans are developing Multiple Chemical Sensitivity (MCS), a bizarre
and extremely disabling condition. In 1979, the Surgeon General issued
a report stating "There is virtually no major chronic disease to which
environmental factors do not contribute, directly or indirectly." Indeed,
people today are exposed to synthetic chemicals at levels unmatched at
any time throughout human history. Washington Post staff writer Michael
Weiskopf noted in a February 10, 1990 article that "hypersensitivity
to low levels of toxic chemicals (MCS) is a serious and growing medical
problem, threatening to cause significant economic consequences by disabling
large numbers of otherwise healthy people." MCS is a result of the
destruction of the body's ability to tolerate and synthesize chemicals
after exposure to toxic substances. Victims develop extreme reactions now
not only to lawn pesticides but also hair sprays, perfumes, soaps, formaldehyde,
and many other common household products.(5,36) Many victims include former
lawn pesticide applicators and users, their families, and children.
Sharon
Malhorta, a registered nurse from Pittsburgh, would get so sick from lawn
and tree spraying that she had to leave her home every spring. Otherwise
she would suffer headaches, paralysis in her hands and feet, and muscle
seizures. Repeated exposure caused blurred vision, speech difficulties,
and severe stomach cramps. Her husband, a doctor, suspected early on her
symptoms were the result of nerve damage from organophosphates, which are
widely used nerve-gas type insecticides, like Diazinon. After questioning
lawn companies about their products he was told they were "practically
nontoxic", registered by the EPA, and not harmful
to people or pets. He later discovered that the chemicals his wife was exposed
to were in fact neurotoxins, and was shocked to discover there were surprisingly
few EPA studies on their health effects.(19)
Karen James, a Michigan postal
worker, successfully sued ChemLawn in 1988. While walking past one of their
trucks, a hose ruptured and she was drenched with chemicals. The employee
told her not to worry, that only fertilizers were in the spray. But soon
after she became seriously ill, and her eyes and skin burned. When her
symptoms of fatigue, vomiting, diarrhea, and reduced vision didn't clear
up, her doctor called ChemLawn to find out what chemicals she had been
exposed to. He was told no pesticides had been involved, but after tests
on Karen s body tissue detected high levels of Dursban, ChemLawn admitted
the truck contained pesticides. Many other suits against lawn companies
are settled out of court. Frequently the settlement restrains the victim
from talking about the incident, so the public is not informed.(19)
For
the price of green lawns, children are also being poisoned. In 1985 a married
couple in Sarasota, Florida, felt pressured by their neighbors to get their
lawn treated. They hired a company, never thinking their 2-year-old daughter
would be jeopardized. The company declared the yard would be safe about
an hour after the chemicals were applied. However, soon after playing barefoot
on the grass, the couple's daughter developed a rash all over her body,
her urine turned dark brown, and she ran a high fever. Her doctor prescribed
antibiotics, but her condition grew steadily worse. Her hands and feet
swelled to twice normal size, blistered, and peeled. Her lips turned black
and bled. Years later she is still permanently prone to headaches and has
40% hearing loss in her right ear.(19)
Barry
and Jackie Veysey believe lawn chemicals were responsible for the death
of their
baby
son. Barry was a professional turf master, and the chemicals he worked with
may have mutated his sperm or poisoned the infant in utero. Every time Jackie
washed
her husband's uniforms, the chemicals may have been absorbed through her skin
and permeated the placenta. The child was born with a severe and fatal type
of dwarfism. Jackie held her son only once before he died due to massive failure
of his underdeveloped organs.(19)
Kevin Ryan from Arlington Heights, Illinois,
feels like a prisoner in his home. "I can't even play in my own yard
because the neighbors spray their lawns and trees", he says. Kevin
suffered routine chemical exposure as a toddler from lawn spraying, and
now suffers nausea, irritability, fatigue, and loss of memory whenever
pesticides are nearby. His family moves to Colorado every spring and fall,
the peak spraying times of the year, to keep him safe.(19,20)
In 1986,
Robin Dudek of Hamburg, New York pulled the garden hose off her lawn and
used it to fill a wading pool for her daughters Amanda, 3, and Kristen,
2. Earlier her lawn had been sprayed with chemicals. When Amanda started
drinking from the hose, she began to scream that the water was burning
her. Then Kristen began crying and screaming as well. Robin took the children
inside and noticed burn marks on both of them, as well as the smell of
chemicals on Amanda's breath. The girls later suffered from fevers, swollen
eyes, and blisters the size of grape clusters around their necks.(19)
Christina
Locek was a professional ice skater and pianist before her health was destroyed
in 1985, when her neighbor s lawn was sprayed with pesticides. Her cat
and dog died that same day, and she suffers headaches, partial paralysis,
vision loss, and blood disorders.(21) Former Navy Lieutenant George Prior
developed a fever, headache, and nausea after playing on a golf course
treated with Daconil. It was later discovered he was suffering from toxicepidermal
necrolysis, which causes skin to fall off in sheets and massive organ failure.
Prior died soon after.(6,8)
According to the EPA, 95% of the pesticides
used on residential lawns are possible or probable carcinogens.(3,22) In
1989 the National Cancer Institute reported children develop leukemia six
times more often when pesticides are used around their homes.(3,22) The
American Journal of Epidemiology found that more children with brain tumors
and other cancers had been exposed to insecticides than children without.(3)
Studies by the National Cancer Society and other medical researchers have
discovered a definite link between fatal non-Hodgkins Lymphoma (NHL) and
exposure to triazine herbicides (like Atrazine), phenoxyacetic herbicides
(2,4-D), organophosphate insecticides (Diazinon), fungicides, and fumigants;
all of which have uses as lawn chemicals. This may be an important contributing
factor to the 50% rise in NHL over the past ten years in the American population.
Studies of farmers who once used these pesticides found alarmingly high
numbers of NHL, especially in those who didn't wear protective clothing.
This latest finding also proves the theory that most danger from pesticides
comes through dermal absorption, not ingestion.(23) A University of Iowa
study of golf course superintendents found abnormally high rates of death
due to cancer of the brain, large intestine, and prostate.(4) Other experts
are beginning to link golfers, and non-golfers who live near fairways,
with these same problems.(8,24)
Documented cases of pesticides in groundwater
wells are suspect for cancer clusters showing in many towns. In 1989, drinking
water in at least 38 states was known to be contaminated.(3) After the
herbicide Dacthal was applied to Long Island golf courses, it was detected
in drinking water wells at levels twenty times the State's safety limits.
The water also contained a dioxin that is a highly toxic by-product of
Dacthal(8,19). The New York State Attorney General sued the manufacturer
in 1989 to investigate the contamination and develop a treatment program,
since ground water is the main source of drinking water for Long Island.
Twenty-two other pesticides have been found in the water so far. However,
there is still no requirement or systematic program designed to test for
drinking water contamination.(3,25) As Michael Surgan, Ph.D., Chief Environmental
Scientist for the New York State Attorney General, and an advocate for
responsible pesticide use, puts it, "If you buy the notion that we
have to accept a certain amount of risk from pesticides to safeguard the
food supply, that's one thing, he notes. But with lawns, people are applying
carcinogens simply for the sake of aesthetics. That's got to change".(4)
Pesticides and chemical fertilizers are becoming some of the worst water
pollutants in America.
Discharges into San Francisco Bay from the central valley of California are
estimated at almost two tons per year.(26) Phosphorous levels in some Maryland
streams have doubled since 1986. And an EPA study found potentially harmful
levels of nitrate from chemical
fertilizers in drinking water wells nationwide. This can cause blue-baby syndrome,
an oxygen-depriving condition in infants that can be fatal.(18) Environmental
impacts are also devastating. Ward Stone, a DEC wildlife pathologist, has long
studied bird kills from pesticides that were used according to regulation.
Documented cases of owls, mourning doves, sparrows, blue birds, and many other
songbirds killed by lawn chemicals are on the rise. Waterfowl like Canadian
geese, mallards, wood ducks, and others have suffered even worse. In 1984 there
were 700 brant found dead on a Long Island country club after it was sprayed
with Diazinon.(8,27) Pesticide exposure causes shivering, excessive salivating,
grand mal seizures, wild flapping, and sometimes screaming according to U.S.
Fish and Wildlife Service volunteer Diana Conger. Ward Stone likens these birds
to miners' canaries, foreshadowing serious harm to humans from chemical build-up
in the environment.(28)
Most people seriously overestimate the amount of protection
given them by governments regarding pesticide safety. Congress found that
90% of the pesticides on the market lack even minimal required safety screening.(3)
Of the 34 most used lawn pesticides, 33 have not been fully tested for human
health hazards.(4) If any tests are done, they are performed by the chemical
manufacturers, not the EPA. "If a chemical company wanted to, they
could start with a desired conclusion, and skew the data, and the EPA would
never know", notes David Welch, an entomologist with the EPA's Office
of Pesticide Programs. Welch did a random sampling of 15 pesticide files
and found 13 without proper reviews.(19) One third of the most commonly
used lawn pesticides were illegally registered for use. Despite the fact
executives of Industrial Bio- Test labs were given jail terms for faking
pesticides tests, the chemicals are still on the market.(3) Shortages in
funding, personnel, and interference from business has slowed re-evaluation
of these chemicals.(25) Even when the EPA does refuse a pesticide registration,
the manufacturer often files a lawsuit, which keeps the chemical on the
market.(19) Jay Feldman, coordinator of the National Coalition Against
the Misuse of Pesticides, is well aware of this. "The
EPA should be called the IPA- the Industry Protection Agency", he charges.
The chemical industry is extremely powerful, and wraps the EPA in red tape.
It is also essential to understand that by law pesticide registration in
the U.S.A. is not a consumer safety program.(9) According to Congress, the
EPA does not have testing and assessment guidelines specifically for lawn
use.(25) EPA has admitted in court that pesticide registration does not ensure
product safety. Rather, it is a balancing act of costs and risks.(1-5,7-9,15,22)
Most lawn pesticides were registered before 1972, when more stringent restrictions
took effect under the revised Federal Rodenticide and Fungicide Act. They
were never tested for many human health hazards like carcinogenicity, neurotoxicity,
and environmental dangers. Most, as previously stated, have yet to be re-evaluated,
yet remain on the market.
Read the labels on many lawn pesticide products,
sprayed by lawn companies or sold in stores, and you will find one or more
of the following: 2,4-D, Captan, Diazinon, Dursban, Dacthal, Dicamba, and
Mecocrop. Each was registered without full safety screening. 2,4-D is an
artificial hormone that has become a synonym for "dangerous pesticide",
but dermal absorption of mecoprop is far more dangerous, and dicamba is
much more persistent in the environment - a mixture of these three is usually
used, not 2,4-D alone. Diazinon has been banned for use on golf courses
and sod farms due to massive waterfowl deaths but is still widely used
on lawns and gardens. It is an organophosphate which disables the nervous
system by blocking enzymes essential for nerve impulse transmission.
People
can protect themselves and their families by knowing the facts. If having
grass that looks more like Astroturf than living plants still seems essential,
it doesn't have to come with pesticides but is possible with products or
programs that are organic and natural. This list of alternatives continues
to grow, and they are safer, cheaper, and often work better than pesticides.(3,5)
Ringer Corporation vice president Fred Hunt markets natural fertilizers
and microbes that kill pests. "We just don't think a lot of these
chemicals are necessary for aesthetic use on homeowners' lawns", he
reveals.(7) Chemicals add salt to the soil and kill beneficial nitrogen-fixing
microorganisms that provide necessary nutrients for grass, turning a lawn
into a junkie.(29) Each quick fix of green creates a dependence for the
next. Synthetic fertilizers kill earthworms and other organisms that aerate
soil, causing it to compact and kill grass plants. Inorganic nitrogen-based
fertilizers also promote the sprouting of weeds.(30) Compounds in chemical
fertilizers also acidify the soil and aid in breeding of some insects.
Lawns need a soil pH between 5.6 and 7 or else they turn pale and thin
out. Additional doses of chemicals will only make matters worse.(31,32)
Recycling grass clippings saves money, reduces waste, and according to
Lawn Institute Director Eliot C. Roberts is equivalent to three applications
of fertilizer a year without unhealthy chemicals and their side-effects.
Natural fertilizers are also better because they are time released, allowing
grass to grow slower and tougher, requiring much less care.
Insects have
been best controlled by other insects for millions of years, and the lawn
is no exception. Insecticides often kill more beneficial insects than problem
ones. Once the natural balance is destroyed, continued reliance on insecticides
will occur. This is also true of weed killers. When a crabgrass stand is
killed with an herbicide, there will still be thousands of seeds ready
to start anew.(31) In the long run, pesticides can actually help the very
pests they target by also killing their predators, and their use becomes
self-perpetuating. Until a natural balance is restored, more and more will
have to be spent each year on chemicals, and resistant pests may also invade.
Using alternative strategies will bring better results and be kinder to
the environment. Integrated Pest Management gives simple, long-lasting
solutions which require no chemicals, much less money, and much less time
and effort. Many alternatives not explored here can be found in the books
and articles listed at the end of this report.
What makes a plant a "weed" is
often only a matter of opinion. For instance, it was once a sign of prestige
to have clover in a lawn. Their flowers and silky green leaves were once
prized by homeowners, as was their natural production of nitrogen fertiliser,
and clover seed was sold by the bushels, alone or mixed with grass seed.
It wasn't until a chemical company discovered a pesticide that killed clover
but not always grass and launched an enormous advertising campaign that
clover became no longer fashionable. As a result, people today ignore its
fine qualities, even though throughout the 1950s it was "common as
bluegrass".(33)
A growing list of over 9,000 Americans are participating
in the National Wildlife Federation Backyard Wildlife Habitat program.
By growing tall grasses, they attract a dazzling array of wildflowers,
butterflies, and birds, creating habitats that are the aesthetic match
of any manicured lawn. Suggestions on what to plant to best attract wildlife
can be obtained from the Fish & Game Department of any state in the
country.(34)
The lawn pesticide industry is a very recent creation by chemical
firms to expand the market for aging farm chemicals. These products are
not necessary for use on lawns and pose serious ecological and human health
risks that outweigh any benefits they offer. Integrated Pest Management
strategies offer alternatives that work better and have less harmful effects.
Proper legislation to protect the public regarding pesticide use is still
seriously insufficient.(35) Therefore, the responsibility rests on the
public to be the ultimate judge of what the acceptable levels of risk will
be for their families and environment.(4)
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Secret Hazards Of Lawn Pesticides: Inert Ingredients." New York
State Department Of Law, 1994.
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Davidson, Osha Gray. "Pesticides: The Killing
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The S.T.A.T.E. Foundation (Sensitive To A
Toxic Environment), 4 Hazel Court, West Seneca, NY 14224.
Begley, Sharon & Hager,
Mary. "Please Don't Eat The Daisies." Newsweek
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Stevens, William K. "Public Said To Disregard
Dangers Of Manicuring The Greensward." The New York Times 17 September
1990.
New York State Attorney General's Office. "Toxic
Fairways: Risking Groundwater Contamination From Long Island Golf Courses." New
York State Department Of Law, 1990.
New York State Attorney General's
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What You Should Know". New York State Department Of Law, 1994.
Meier, Barry. "Lawn Care Concern
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gopher@earth1. The United States Environmental
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fedworld.gov.
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Fischer, Aldeheid. "Grass Is Not Always
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New York State Department Of Environmental Conservation,
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Sayan, Kathyrne. "The
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Skow, John. "Can Lawns Be Justified?" TIME
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"Warning: The Use Of Pesticides May Be Hazardous
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Zahm, Sheila and Aaron Blair. "Pesticides
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Hershenson, Roberta. "Study Finds Use of
Some 'Safe' Pesticides Harmful." The
New York Times 14 April, 1985.
Levy, Claudia. "Pretty Lawns May
Be Lethal For Songbirds: Pesticides Blamed For Toll On Wildlife." The
Washington Post 28 April 1991.
Polk, Nancy. "The Perfect Lawn Isn't
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Findlay, Steven & Terry Thompson. "Watch
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Henkenius, Merle & Eugene
Thompson. "Natural Lawn Care." Popular
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.Schultz, W. "The Chemical Free Lawn." Emmaus,
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