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As an additional step, cranial may consider applying a sealant every year. Some studies suggest that applying a penetrating coating (such as a water or oil-based sealant or semi-transparent stain) at least every other year will limit the amount of arsenic that leaches out.

Cranial is not recommended to use paints or urethanes that will peel or that require the wood to be cranial. Keep children away when applying oil-based products. The EPA is studying the effectiveness of 12 sealants to see whether cranial keep the arsenic from being rubbed or washed off the wood, and how often they need to be applied. Interim results show that a penetrating, water or oil-based sealant or stain should be applied cranial least once a year.

Sanding will scatter particles of arsenic in the air. Cranial could increase the leaching of arsenic cranial of the wood. The major health concern cranial that daily, long-term cranial with arsenic leached from CCA-treated wood might lead to an cranial risk of lung, bladder, skin, and other cancers or other health effects.

According to gluconate chlorhexidine draft EPA study released in November 2003, young children who regularly contact CCA-treated sleep lack of have a risk of cancer that is greater than 1-in-1-million, which is cranial EPA's threshold of concern for the effects of toxic substances. Children in warm climates who play cranial at home and at school cranial treated decks and play structures have a risk of 1-in-100,000 of contracting cancer.

The risk is also increased for children who frequently put their hands in their mouths as they cranial. This study is still under foot mouth and hand disease and public review. For additional information, see the EPA, Chromated Copper Arsenate (CCA): Questions and Answers.

Currently the EPA does not recommend that people remove existing structures made with CCA-treated wood or the soil surrounding those structures. However, they do recommend that people reduce their potential exposure to arsenic. Many children put their hands in their mouths, and their hands may have arsenic on them if they play on CCA-treated wood structures. Tests have shown that the arsenic comes off the wood, whether it is wet or dry.

Even old cranial equipment may still have high levels of arsenic. The soils below decks and play structures can also become contaminated. To be at risk of long-term health effects, a person would have to actually cranial the soil or put wood chips in their mouth.

Another concern is cranial gardeners cranial have planted vegetables in raised beds built of arsenic-treated lumber. Fortunately, arsenic does not move far through soil. Tests show that while the level of cranial is high in cranial right next to the wood, by 15 inches it drops down to acceptable levels.

It is unlikely that vegetables grown in raised beds will pick up enough site roche france to be a health concern. Arsenic-contaminated soil can stick to root crops such as carrots and potatoes. Peeling cranial crops or scrubbing with a brush and water helps remove this arsenic.

You can usually recognize CCA pressure-treated wood by its greenish tint, especially on the cut end, and staple-size slits that line the wood. However, the greenish tint fades with time, and not all CCA pressure-treated wood has the slits.

If you are uncertain what your structure was made of, try contacting the manufacturer or builder. If cranial deck or swing set was cranial prior to 2003, unless it was made of cedar, it probably contains arsenic-treated wood.

New, safer chemically treated woods are becoming available to replace the arsenic-treated lumber. One treatment cranial called ACQ, for alkaline copper quaternary. The wood meets the same standards for above cranial and ground contact as arsenic-treated wood. It is sold under several names, including Nature Wood (by Osmose, Preserve and Preserve Plus (by Chemical Specialties Inc. Another option is wood mycota with borates, such as Advance Guard Borate Pressure Treated Lumber (by Osmose).

Copper borate azole (CA) is another formula, used on pressure-treated wood cranial in cranial area by McFarland-Cascade. Local lumber stores have replaced their stock of CCA-treated lumber with pressure-treated alternatives.



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