Green Options

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The Marble Institute of America better get ready for another round of fighting because the issue of radon in granite countertops is back. For the past decade, the MIA has been trying, with much success, to squash the rumor that granite countertops have the potential to add dangerous amounts of radon in the home. A new study being conducted by Houston area not-for-profit BuildClean is raising old fears about the dangers of granite countertops, and its preliminary results show that while most granite countertops in the study contain very little to no radon at all, the countertops that do contain radon have levels that are frighteningly high. While consumers can be secure in the fact that the vast majority of granite is perfectly safe, a small percentage is still in question, and no independent scientific study exists to assuage consumer fears.

The first issue of Solid Surface in 1995 explored the possibility that granite countertops may pose a health risk. Soon, the MIA issued their response, which attacked the credibility of the science involved in the study as well as the fact that the advertisers in the journal included companies that competed with granite countertop manufacturers. But one phrase in the response, a highlighted phrase no less, is troubling: “…actual levels of radon gas emmissions are so low as to be insignificant and generally represent no threat.” As a father, I don’t want to be assured that there is “generally” no threat to my family. I want to know there is no threat. And after BuildClean* found that 3 of 95 granite countertops contained harmful amounts of radon, would the MIA consider such a small number to be “generally” no threat? I’m sure the owners of those three countertops are not reassured.

Author’s note: the following article on home heating is the first in an eight-part series. The series specifically targets climate found in the San Francisco Bay Area, but has applicability elsewhere.

According to the U.S. Department of Energy, heating and cooling amounts to 46% of all energy consumed by our homes. Water heating uses another 14%. In coastal California, where extreme heat is rare and winters are mild, a properly sited, well designed passive solar home can generate its own heat and hot water, and do without air conditioning.

Historically, few homes are so well sited or built. Since our area has more heating days than cooling days, most homeowners need a heating system. What few know is that many indoor air quality problems can be by-products of forced air heating, ventilation and air-conditioning (HVAC) systems installed in their homes.

Harvard University has achieved several firsts with the recent renovation of an old power plant into an office building. It is the first LEED Platinum certified university building renovation, as well as Harvard’s first Platinum building. More interestingly though, it is the first Platinum building built before the turn of the the century–last century, that is.  Further, the university was able to complete this building without an increase in the up-front construction costs.

Today’s news included the story that testing on FEMA-supplied temporary housing trailers in Mississippi and Louisiana has found extremely high levels of formaldehyde in the air, despite earlier reports issued by FEMA indicating that there was no problem.

Tests by the Centers for Disease Control and Prevention on more than 500 trailers in Louisiana and Mississippi showed formaldehyde levels that were five times higher than levels in a normal house. The levels in some trailers were nearly 40 times what is normal.

The CDC is saying that people living in these trailers “should move out quickly — especially children, the elderly and anyone with asthma or another chronic condition.”

By MC Milker
The Not Quite Crunchy Parent

Just as doing things the old fashioned way, from cloth diapers to wax paper turns out to be good for the environment, so too does cleaning the air using that retro favorite…plants.

Most of the attention recently has been, as it should be, on the big picture clean air issues: how pollutants impact our breathing air and how industry destroys some of our major sources of oxygen, the rain forests and seaweed beds.

However, as we move closer to home, an old and moldy NASA study, Foliage Plants for Removing Indoor Air Pollutants from Energy Efficient Homes, is recently receiving another look.

Young children are especially susceptible to the negative effects of modern life, including indoor air quality and heavy metal exposure, such as lead. Many eco-living families feel like they have to sacrifice some of their green morals when placing their children in daycare or preschool. These families do the best they can by packing their children organic snacks, but there is little they can do about other aspects of the program. Now, parents in Atlanta, Georgia will have a choice to enroll their children in the first completely eco-friendly child care center FIO360.

What makes a child care facility eco-friendly? According to FIO360,

• Solar tubing to conserve energy and provide natural daylight throughout the facility;

• Radiant, heated floors in all classrooms-proven to reduce energy costs, enhance air quality and improve circulation, which contributes to a stronger immune system, a healthier heart and better sleep;

• Activclassroom whiteboard technology and software informed by teachers to foster an interactive learning environment that keeps students engaged, focused and enthusiastic;

• Streaming video capabilities in each classroom for parents who want to periodically join in on their children’s learning and play experiences throughout the day;

• Waterless urinals and sensor-activated faucets in all lavatories to preserve water;’

Do you have a room in your house where unpleasant odors live, such as near a cloth or landfill (disposable) diaper pail? I was recently given a Brethe Air Revitalizer by Homedics to test out. This product uses “vortex cleaning action technology” to neutralize air. Not sure what that means, but it uses water and natural botanical solutions to freshen the air.

To use the Brethe Air Revitalizer, you simply add water and a few drops of “non-toxic and biodegradable botanical solutions”, then plug the appliance into an outlet. Ingredients are not listed on the botanical solution, but I think that you could simply use essential oils when the solution ran out. The Brethe Air Revitalizer traps and eliminates 99% of odor-causing bacteria, but is it worth the electricity it uses?

My Body My HouseWith environmental issues on the forefront of many peoples minds these days, there has been an increase of children's literature on the subject. My Body My House is one such book that focuses on the choices we make in our home that affect our body's health. Written by Lisa Beres and illustrated by Juila Woolf, My Body My House addresses "sick building syndrome", suspected as

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Want to improve the indoor air quality in your home or office? Get a houseplant.

Plants can absorb air pollutants and can alleviate some "sick building syndrome" symptoms such as headaches and eye, nose or throat irritation which may be caused by inadequate ventilation, chemical contaminants (ie. VOCs, carbon monoxide) or biological contaminants (ie. mold, pollen).

You don't have to overdo it. One plant for every 10

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The Genzyme Center in Cambridge, Massachusetts is in rare company.

Recently, here on GO, we talked about green building in fairly general terms, but more specifically, what are some green building strategies?