Wood preservative products are những có claim to control fungal wood rot Degradation or problems Due to decay, sapstain, molds, insects or wood-Destroying. Both the treatment process and the use of Treated products can result in exposure-to pesticides for both Show People and the environment. Most of the treatment processes and Uses of Treated products occur outdoors. There are wood preservatives có support a tolerance for indirect food contact dùng-như wooden crates, pallets, and stakes used to store hay raw Grow Agriculture Commodities.
Generally, freshly cut logs or lumber are Treated and then manufactured Into như products:
Seasoned building materials.
Utility poles, fence posts and rails.
Structural members.
Structures and dwellings.
Transportation vehicles (truck beds and support structures).
Crop containers.
Lawn furniture and decks.
Playground equipment.
Garden / landscape Timbers.
Log homes.
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Reregistration of older wood preservatives
wood preservatives Registration Review of older
wood preservatives Newer
Newer residential wood preservatives for dùng
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Reregistration of Older Wood preservatives
and Environmental Impacts The health of older wood preservatives (những registered is before November 1, 1984) đã Evaluated through EPA's reregistration program. Reregistration involves a thorough review of the scientific database underlying a Pesticide's registration. The purpose of the review is to:
reassess the hazards arising from the hiện potencial registered dùng of the Pesticide;
quyết the need for additional data on health and Environmental effects; and
quyết nếu or not the Pesticide meets the "no unreasonable adverse effects" criteria of FIFRA.
In 2008, the EPA quyết three heavy-duty là là wood preservatives Eligible for reregistration given below the mitigation Measures and associated label changes in the Reregistration Eligibility Decision Identified Docs (Reds) là thực. These wood preservatives are:
chromated arsenicals (contains copper and some Combination of chromium and / or arsenic),
pentachlorophenol (PCP); and
creosote.
In the risk assessments for the Reds, chúng Identified Risks of concern associated with occupational exposure (ie, treatment plant workers) to all three exposure to pentachlorophenol preservatives and Ecological and creosote. Since then, all heavy duty wood preservative product labels to reflect the past tense Amended Measures rõ mitigation in the RED.
Chromated Arsenicals
Wood preservatives containing chromium containing preservatives include chromated arsenicals, copper and arsenic. Since the 1940s, Treated wood with chromated bị pressure to protect wood from rotting arsenicals Due to insect and microbial attack and wood-boring agent marine invertebrates. From the 1970s to the early 2000s, the Majority of the wood used in outdoor residential settings arsenical-Treated wood was chromated.
Effective December 31, 2003, manufacturers voluntarily canceled arsenical chromated virtually all residential dùng of CCA, and wood products are Treated with CCA no longer used in most residential settings, decks and children's playsets gồm. EPA has classified as restricted use arsenicals chromated products, for use only by certified applicators Pesticide. Read more about CCA.
Creosote
Creosote since 1948 bị used as a heavy duty wood preservative. Creosote is thu được from high temperature distillation of coal tar. Pesticide products containing creosote are used as the active ingredient to protect wood Against termites, fungi, mites and other pests can degrade or threaten có the integrity of wood products.
Currently, creosote is used for commercial PURPOSES ONLY; it has no registered residential dùng. Creosote is a restricted Pesticide use in outdoor có thể used in railroad ties như settings and utility poles. Indoor applications of creosote are prohibited as well as to wood intended for use application in interiors or for use in contact with food, feed, or drinking water. Read more about creosote.
Pentachlorophenol
Pentachlorophenol (PCP) was registered as a Pesticide on December 1, 1950. PCP was one of the most widely used biocides in the United States is before 1987 as an herbicide dùng khi pentachlorophenol, defoliant, mossicide and disinfectant là removed from product labels.
Currently, there are no registered residential dùng. PCP is a restricted use Pesticide used for commercial nằm Purposes only utility poles như, railroad ties and pilings Wharf. Only pressure and thermal treatments of PCP are allowed. Read more about PCP.
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Registration Review of Older Wood preservatives
Another re-evaluation of older wood preservatives những is occurring under EPA's Registration Program Review. Under FIFRA section 3 (g), EPA Pesticide sẽ review every 15 years each registered to quyết nếu it Continues to meet the Statuto
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