View Chromated Copper Arsenate Wood Images. Chromated copper arsenate (cca) wood preservatives have been commonly used to protect wood from deterioration. Chromated copper arsenate (cca) is a wood preservative containing compounds of chromium, copper, and arsenic, in various proportions.
Soil Contaminants | Soil Science Society of America from www.soils.org Epa has classified cca as a restricted use product, for use only by certified. It greatly increases the service life of timber exposed to weather, in ground contact, or immersed in water. Lumber used to construct raised garden beds is often treated with chromated copper arsenate (cca).
It is used to impregnate timber and other wood products, especially those intended for outdoor use, in order to protect them from attack by microbes and insects.
Chromated copper arsenate (cca) is a wood preservative containing compounds of chromium, copper, and arsenic, in various proportions. The acgih limits of exposure in the workplace are specified in table 4. It greatly increases the service life of timber exposed to weather, in ground contact, or immersed in water. The united states environmental protection agency (usepa) has not banned cca, but it is desirable to to take.
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