Showing posts with label Toxic substances and human health. Show all posts
Showing posts with label Toxic substances and human health. Show all posts

Monday, October 29, 2007

Disappearance of indigenous baby boys tied to industrial pollution













By Terri C. Hansen
Environment and Science Reporter

In indigenous communities, babies that should be born boys are being born girls. Research released this month of only girls being born in the villages of northern Greenland has brought to light earlier studies that found indigenous mothers living in the northern most reaches of the Arctic Circle are having girls – but not boys. The studies linked the skewed sex ratios with human exposures to PCBs and other persistent organic chemicals.

The Indigenous Peoples Organization initiated the Arctic Monitoring and Assessment Program project in 2004, following a report that some Arctic indigenous communities are among the most exposed populations to persistent toxic substances.

The AMAP report concluded, “Any threat to continued consumption of their foods, including chemical contamination, is not only a potential threat to the health of the individual, but also to the social structures and entire cultural identity of these indigenous peoples.”

Toxic pollutants travel from industrialized countries and accumulate in the marine food chain of the Arctic region, and in the traditional diet of indigenous peoples. Blood levels of such pollutants as PCBs and mercury were several times higher in residents of Arctic Canada and Greenland than measured in residents of industrialized areas of North America.

Perhaps an even darker legacy of the industrial contamination is what has happened to the baby boys in Canada on the Aamjiwnaang First Nation, an Aanishinaabek community.

Normally about 106 boys are born for every 100 girls – it’s nature’s way of compensating for males more likely to perish through hunting and conflicts. For years, scientists have been reporting declines in male births worldwide. But the most startling is the sharp drop of boys among the Aanishinaabek of Aamjiwnaang, “a greater rate of change than has been reported previously anywhere,” noted a 2005 study that was published in the prestigious journal Environmental Health Perspectives.

It’s the kind of attention the 850 members of their community never wanted. They could not even conceive what was happening, least of all in their tiny community. Their pain and their questions began five years ago, when the biologist Michael Gilbertson, upon finding elevated levels of PCBs, pesticides and heavy metals on the reserve asked if they had more girls than boys.

Tribal members were first baffled, and then aghast following the realization that yes, they had enough girls for three baseball teams, but not enough boys for even one team. They began to take pay attention. Their anger soon turned to action.

An accidental catalyst release from the Imperial Oil facility in 2002 had prompted Imperial Oil to sample their homes. Then they cleaned tribal homes inside and out. They even cleaned the cars inside and out. Don’t worry, they told tribal member Ron Plain while stirring up dust as they cleaned. “The dust won’t hurt you.”

But Plain did worry, asking incredulously, “If it’s harmful to our houses and cars, what’s it doing to our lungs and our bodies?” Plain and other tribal members began organizing their own environmental investigative committee, a grassroots effort. Meanwhile Imperial Oil offered $300 to each homeowner if they agreed to waive any damages and legal counsel, and many accepted their offer. Last year the company paid $125,000 in fines.

The Aamjiwnaang environmental investigation team uncovered studies done of their lands years before. One scientific report by the University of Windsor in 1986, showed that mercury, a neurotoxin, was present on their reserve at a 100 times greater amount than the Severe Effect Level, set by the Canadian government.

Soon after Sun Oil – now Suncor – announced they planned to build the largest ethanol plant in Canada across the street from the tribal community. Plain and other members of the tribal environmental committee, angry and fed up, closed their roads. For six weeks, they cut off access to the proposed site. Sun Oil trucks could not get through.

“We won,” says Plain. “They agreed not to put the plant in. We shut down a multi-million dollar industry.” The battle had begun.

The Aanishinaabek people of the Aamjiwnaang have occupied their lands at the southernmost tip of Lake Huron for thousands of years, long before the discovery of oil and the boom “oil rush.” Their homelands are integral to their social structure and their entire cultural identity. Today their land, at the border between Ontario and Michigan just south of Sarnia, Ontario lies in the shadow of Canada’s largest concentration of petrochemical and manufacturing facilities. It’s been dubbed “Chemical Valley.” Their land adjoins the St. Clair River Area of Concern, so designated because of its long history of air and water pollution.

Two new reports this month are a dramatic indictment of the industry’s impact on the Aamjiwnaang community. “Exposing Canada’s Chemical Valley,” identifies 62 facilities in Canada and the U.S. that have made the area Ontario’s worst air pollution hotspot. Particularly striking, says Ecojustice Canada, who commissioned the study, is the staggering amount of toxic pollutants released.

“What is particularly striking about the air pollution in the Sarnia area is the immense quantity of toxic chemicals emitted,” said Ecojustice senior scientist and report author Dr. Elaine McDonald. “There is growing evidence that the health of the Aamjiwnaang First Nation members and the local environment has been severely compromised.”

New findings from researchers at Ontario's IntrAmericas Centre for Environment and Health confirm that more girls than boys are born in some Canadian communities. The cause of the phenomenon is airborne pollutants called dioxins that can alter normal sex ratios, even when the source of the pollution is kilometers away.

Industry spokesmen failed to respond to the Ecojustice Canada report, while the industry-funded Sarnia-Lambton Environmental Association initially responded with no comment. Following their period of silence, the association’s Dean Edwardson was quoted as saying, “We want an open and transparent process…something that is scientifically valid, peer-reviewed and is meaningful.” He said industry would help pay for such a study.

But Plain says there has already been a scientifically valid, peer-reviewed study done. “The 2005 study was reviewed by top scientists and was published in the highly regarded scientific journal Environmental Health Perspectives."

Edwardson said data released in September from the County of Lambton Community Health Services Department shows that the birth ratios of the Sarnia-Lambton area are similar to those for the rest of Ontario. To that, Plain answers, “For years, we have been asking the County of Lambton for a research program establishing the birth ratios by affected regions as opposed to the blanket wide study where those farthest from the plume are blended into the ratio.” So far, the county has refused, he said.

The findings by Ecojustice Canada reveal pollutants are having significant impacts on the cultural lifeways of the Aanishinaabek, impacting hunting, fishing, medicine gathering, and ceremonial activities.

The Aanishinaabek have reported chemical releases and spills as a primary concern. Their most common concern, however, was fear.

For more information on these reports: Exposing Canada's Chemical Valley

www.ecojustice.ca/reports/chemicalvalley_oct2007.pdg

The Arctic Monitoring and Assessment Program, http://www.amap.no/

Friday, January 19, 2007

Pesticide exposures stop ability of second-generation Yaqui girls to breastfeed babies


by Terri Crawford Hansen
Environment and Science Reporter
Native American Times

SONORA VALLEY, Mexico—The problems began ominously with the Yaqui pueblo peoples who accepted pesticide practices during the 1950s.

Long-term research led by Professor Elizabeth Guillette, Ph.D., of the University of Florida found compelling proof that exposure to pesticides has produced negative health impacts over the years to the exposed Native American Yaqui communities.

Her latest research findings indicate some pre-adolescent daughters of mothers exposed to pesticide spraying will never be able to breast feed their babies—ever.

With others there is uncertainly. Although there is breast growth some daughters have not developed the mammary tissue needed to produce milk, or have developed a minimal amount.
As the pesticide-exposed girls matured breast size became much larger than normal, yet they had less mammary tissue and often none at all, while the unexposed girls were normal.

“Some of the most devastating injustices [are] visited on indigenous farming communities around the world,” an article in the Magazine of Pesticide Action Network said in response to the study. “High exposure to pesticides suffered by many indigenous peoples is a frequent indicator of these injustices.”

Guillette, whose research was published in the March 2006 issue of Environmental Health Perspectives said, “A large study, using my techniques, was done in India showing the exact same results.”

“The results underscore the importance of women protecting themselves from manufactured chemicals beginning at birth because they stay in the body,” Guillette told the University of Florida News Bureau.

The study proves pesticide exposures can cross generations and that daughters of mothers exposed to the spraying of agricultural chemicals can be affected.

The intensive industrial agricultural pesticide approach, called the “Green Revolution,” was born in the Yaqui homeland in the northwestern Mexican state of Sonora’s Yaqui Valley. The poverty-stricken Yaqui were split between accepting pesticides, herbicides and other agricultural toxicants. The valley Yaqui agreed to grow wheat treated with pesticides for export and for other purposes. The other Yaqui removed themselves to the foothills, avoiding pesticide use or exposure.

Guillette, who frequently consults with Theo Colborn, Ph.D., lead author of “Our Stolen Future,” a book that brought widespread attention to hormonal changes called endocrine disruption being wrought to wildlife and humans by common contaminants, said her own interest was piqued by the changes Colborn noted in wildlife. Another anthropologist referred her to the Sonoma Yaqui Valley, where research was promising with two groups virtually identical except for their exposures to pesticides.

Her first long-term study, published in the journal EHP in 1999, tested Yaqui children aged four and five. Study results indicated key differences between the two populations in fine motor skills such as hand-eye coordination, balance, short-term memory, simple problem solving and even the ability to draw a human figure.

Concluding her interview Dr. Guillette stated, “The future of our society depends on today’s children. Preventative action to protect them from contamination must occur now, including individual, national and global levels.”

Copyright © 2007 Terri Crawford Hansen

Sunday, November 5, 2006

EPA fines Ag Air for use of toxic pesticide on Yakama lands

by Terri Crawford Hansen
Environment and Science Reporter
Native American Times

Illegal use of the highly toxic pesticide “Warrior” on the Yakama Nation by an outside company resulted in a $3,120 penalty last month.

Yakama Nation Inspector Rodney Guske teamed with the Environmental Protection Agency in investigating Ag Air, an aerial pesticide applicator who sprayed the insecticide contrary to the product’s label instructions, a direct violation of the law.

As part of Federal Indian Policy, EPA recognizes the primary role of Tribal Governments in regulatory activities that impact reservation environments.

“EPA and the Yakama Pesticide Program are committed to ensuring that all pesticides are applied responsibly and all label instructions are followed,” said Mike Bussell, Director of EPA Region 10’s Office of Compliance and Enforcement.

“Whether applicators are on or off reservation property, they must do whatever it takes to prevent accidental drift or overspray episodes. Protecting human health and the safety of our food supply is serious business.”

Philip Dickey, a staff scientist with the Washington Toxics Coalition—who has successfully sued the federal government to put a stop to pesticide use that jeopardizes endangered or threatened species—said, “Anything such as the insecticide Warrior that paralyzes the nervous system is a neurotoxin—a nerve gas,” adding there are safe and far more effective alternatives.

Warrior is extremely poisonous to fish, aquatic invertebrates, and honeybees. It pollutes groundwater and is persistent in river sediments.

Ag Air of Granger, Washington, sought relief from the judgment, appealing to a federal administrative law judge who ruled against the Company and then to the Environmental Appeals Board, which upheld the Judge’s decision.

To learn more about Pesticide safety, visit: http://www.epa.gov/pesticides/
The PAN Pesticides database: http://www.pesticideinfo.org/

Tuesday, October 4, 1994

Chlorine Ban: To Be or Not to Be?

SEJournal
By Terri C. Hansen

PROVO, Utah — The question, to ban or not to ban chlorine, has produced considerable debate. USA Today environmental reporter and editor Rae Tyson summarized a 1987 chlorine phase-out recommendation by the International Joint Commission of the United States and Canada, and asked a panel during SEJ's fourth annual conference, "Is a chlorine phase-out necessary?"

"Why are we giving chemicals constitutional rights?" askeded Greenpeace campaigner Bonnie Rice, basing her support of a ban on research studies including the recently issued EPA report that links dioxin, a chlorinated hydrocarbon, with immune system damage to humans and animals.

Attorney Gordon Durnil, chairman of the IJC at the time of its recommendation, said commission members studied the process for two years before recommending a phase-out, based on solid scientific evidence. The chlorine industry responded with a 30-year timetable, he said.

But the industry opposes a phase-out, responded scientist Bill Carroll, a chemical company executive on loan to the Chlorine Chemical Council. Carroll used PVC compounds — used extensively in plumbing and sewer lines — to illustrate the negative economic and ecological impact of a phase-out. 96 percent of pesticides are chlorine-based, Carroll said, and almost all water disinfection relies on chlorine.