CBS Eye Witness News Broadcast on Mercury in Fish- Part1

More on the environmental impact of mercury in our water. This episode from KPIX on December 4, 2008 introduces a method of testing safe mercury levels used for Bay Area sushi, and discusses FDA safety standards for fish compared with other countries.

Environmental Trends in Heavy Metal Exposure

An environmental project on toxic methyl-mercury ingestion released in February 2010 quantified the actual cost of toxic mercury emissions. Issued jointly by Norwegian and Swedish research institutes, the report estimates that if current trends continue, human and wildlife exposure will increase by 25%. The Scandinavian study estimates that damages to society worldwide, due to respiratory issues and loss of I.Q., may be as much as $6.6 billion.

In places where fish consumption is high, or in areas where pollution is heavy due to factors like coal burning, the risk is greatest. Other factors include the use of mercury amalgams in dentistry. Elsewhere, it has been estimated that up to twenty tons of heavy metals released into the environment annually are dental metals from offices in the US. However, emission controls and technological reductions could allow emissions to drop by as much as 60%.

Methylmercury is the main pollutant that accumulates in living organisms, including fish. In 2004, the FDA, together with the Environmental Protection Agency, issued a joint advisory aimed at protecting pregnant women, women considering becoming pregnant, nursing mothers and young children. At high enough levels, mercury can harm a developing fetus and cause problems with brain development. The advisory recommended that these populations avoid four types of large predator fish that accumulate greater quantities of pollutants, such as swordfish, shark, tilefish from the Gulf of Mexico and king mackerel.

San Diego Holistic Dentist Goes Green for Cleaner Water

‘Going Green’ is about a paradigm shift involving habitual behaviors and small, day to day choices. As Mother Theresa said, “One cannot do great things. One can only do small things with great love”. Every item that we choose to dispose of or conserve has a cumulative, global impact on our environmental health that becomes more evident with every passing day.

The need for a ‘greener’ perspective in making these choices is true in business and healthcare as well. As a practicing San Diego holistic dentist, I am often surprised by the amount of waste that dental treatments can generate. Of particular concern is the scrap metal produced by procedures such as amalgam replacement or removal. It has been estimated that up to 14% of the metal waste in the oceans is from dental amalgam.

Technology exists that allows dental offices to filter out metal scraps before they find their way into public water sources. Wastewater treatment plants are designed to treat refuse liquids containing conventional pollutants such as human and food waste. The treatment process does not completely remove heavy metals, including mercury. As a result, some mercury will remain. in the treated wastewater discharged into the water system.

Currently ten states mandate amalgam separators, the type of filtration which removes mercury and other metals found in amalgam waste before it enters the water supply. The six New England states, New York, New Jersey, Oregon and most recently Michigan have made amalgam filtration mandatory. Elsewhere, amalgam filtration is voluntary, with one notable exception.

Starting in the 1990’s, studies of the San Francisco Bay revealed a dozen toxic pollutants. Among these were high levels of mercury, which was traced back to local dental offices. Due to mercury toxicity, fish consumption advisories have been issued for the San Francisco Bay Area. Recent studies have shown that 61% of the mercury entering the main treatment facility there is from dental practices. Starting in the summer of 2009, information was sent to Bay Area dentists concerning the newest statutes regarding amalgam filtration; all dental offices will need to be compliant by December of 2010.

Additionally, last year the EPA established the Total Maximum Daily Load of mercury allowable for the Bay, as well as regulations ensuring that bio-solids (treated waste matter) can be safely reused for land application and landfill cover. These regulations require the main treatment plant to meet concentration limits for heavy metals, including mercury. With the availability of durable, tooth-colored composite material, amalgam usage is declining. However the number of amalgam fillings .placed every year is still in the millions.

Another metal associated with dentistry is nickel, a common component of metal-based and stainless steel crowns. Nickel is encapsulated within dental materials and thus contained within the mouth. It is released into the air by industry, crematoriums and trash incinerators. While OSHA does not have it listed as cancer-causing, the International Agency for Research on Cancer and the National Toxicology Program have it listed as a likely carcinogen. Not much is known about effects of nickel on organisms besides humans. Nickel is not known to bio-accumulate the way that mercury does in fish.

As of September 2008, the Environmental Protection Agency continues to support voluntary amalgam filtration, and the California Dental Board follows this guideline. Environmentalists hope that Governor Schwarzenegger’s ‘green legacy’ will include more active legislation to protect California’s natural resources from waste metals, including metals from dentistry.

Meanwhile, ‘going green’ continues to develop as a grass roots movement. A growing awareness of the effects of what we put into our mouths and bodies, whether through diet or dental materials, is creating momentum for the change to sustainability. One question regarding conservation to ask in your dentist’s office is: “Do you have an amalgam separator?” Voluntary use of this type of filtration is a great way to contribute to a ‘greener’ way of life.

By asking questions and looking for solutions to keep our environment sustainable, we find that there are small things we can do every day to preserve our beautiful planet.

Tracking Device Monitors Global Warming

Led by scientists from England, an orbital tracking device designed by an expert international team has been taking readings of the Earth’s temperatures and its current warming trends. The ATSR (Along Track Scanning Radiometer) is managed by the Rutherford Appleton Laboratory, which has called for a symposium to present current observations.

Chief among these is that the planetary environment shows definite warming patterns since the 1990’s. While the news itself is not indicative of positive changes, the fact that variations in temperature can now be closely monitored is a significant advance in addressing the ongoing challenges of global warming and its implications for environmental health.

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Green Dentistry and Ocean Conservation Part 2

http://www.myholisticdentist.com’s Carey O’Rielly DDS offers his perspective about dentistry’s impact on marine life and on fish consumption in our diet, as well as future issues regarding ocean conservation and environmental health.

Green Dentistry and Ocean Conservation Part 1

San Diego Holistic Dentist and environmental health activist, a leading advocate of biological, green dentistry at http://a-zholisticdentistry.com, discusses water pollution from mercury and plastics in this video created  for Encinitas Environment Day 2009.

It’s Easy Being Green

By Carol Bommhardt
Excerpt from an article featured in AGD Impact, September 2008
                                                                                                                                                             As Kermit the Frog likes to say, “It’s not easy being green.” Unfortunately, he’s got a point. In today’s throwaway society of convenience, gigantic SUVs, and plastic galore, being “green,” or environmentally conscious, certainly is not the easiest task to take on. Making an effort to change the way we live may not always be easy, but luckily for Kermit and the rest of us, many people seem to be seeking out and embracing greener ways of life.
                                                                                                                                              According to a Washington Post article (2008), on June 23, 1988, a National Aeronautics and Space Administration (NASA) scientist first told a U.S. Congressional hearing that global warming was a certainty, and it was already happening. Twenty years have passed, but only recently has “going green” become popular. The term is popping up everywhere these days, along with endless opportunities to contribute to helping the environment.   

As more people become aware of the importance of caring for the environment, more are taking steps to do their part. Although it easily could be considered a passing fad, going green is much more than that, and may very well be the most important concept of our time.
                                                                                                                                                       From grocery stores selling reusable shopping bags to car manufacturers creating more energy-efficient vehicles, the world is catching on to what some have been warning about for years. The amount of information can be overwhelming when discussing global warming and its implications for the earth. One term that is particularly significant is carbon footprint. This refers to the amount of carbon dioxide (CO2) emitted as a direct or indirect result of an activity. Every day, almost everything that we do—from turning on lights in our homes to traveling to work—results in carbon dioxide emissions.                                                                                                                                       

Problems occur when these gases are released into the atmosphere faster than they can be absorbed. Currently, CO2 is being released about three times faster than it can be reabsorbed and concentrations of greenhouse gases are higher than they have been at any point in the past 800,000 years, according to How to Reduce Your Carbon Footprint (2008). The Natural Resources Defense Council says that the consequences of this include spread of disease, extreme weather patterns, and drought, and they are not to be taken lightly.
                                                                                                                                                  Concerns for the environment have been voiced for decades, but the world has been slow to get the message. Now, many people are eager to move toward a greener way of life, including several dentists who believe that going green can and should be incorporated into every aspect of their lives, including their profession.

Patient awareness and education
Carey O’Rielly, DDS, and his wife, Victoria, founded Integrative Dental Practice, a holistic dental office in Encinitas, Calif., which focuses on prevention and overall health. “Holistic dentistry is ultimately a green approach, whether you are talking about the environment of the body or the overall environment we live in. There is a tie-in between the two approaches,” says Victoria. The practice is environmentally conscious, using fresh air ventilation, extensive air filtration, and non-chemical steam sterilization.
                                                                                                                                                                The practice emphasizes the relationship between holistic dentistry and the environment, because the mouth and the body are environments in and of themselves. Special attention is paid to what materials are used and what goes into the body—only biocompatible materials are used in the practice, and patient-specific materials testing is done upon request.
                                                                                                                                                               To the O’Riellys, the organic movement is an important indicator of future trends. “People are becoming concerned with what they are putting into their bodies and they want to be educated,” says Dr. O’Rielly. “The green movement is a paradigm shift. This is the next wave and it’s going to be patient-driven. Dentistry would be well-served to be at the leading edge.”
                                                                                                                                                             In adopting a greener approach to his profession, Dr. O’Rielly affirms that he truly enjoys the way he practices dentistry. “I wouldn’t practice any other way, because it is aligned with my personal lifestyle,” he says. “In this day of specialization, having a niche like environmentally friendly dentistry also is a great way to differentiate oneself. By adopting a more holistic or green philosophy, I enjoy a more engaged, loyal client base and a better working environment. This is the future. You have to stay a little progressive in order to stay competitive.”

To comment on this article, send an e-mail to impact@agd.org.

More Information…
For more information about these practices, check out their Web sites:

Carey O’Rielly, DDS, and Victoria O’Rielly
Integrative Dental Practice
http://a-zholisticdentistry.com