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Asbestos In Serpentine Rock

Asbestos fibers may be released from serpentine rock formations and are determined by microscopic techniques The results are very sensitive to sampling procedures The analytical results are reported in percent asbestos fibers which is the percent number of asbestos fibers contained in 400 randomly chosen particles of a bulk sample
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  • Method 435 Determination Of Asbestos Content Of

    Asbestos fibers may be released from serpentine rock formations and are determined by microscopic techniques The results are very sensitive to sampling procedures The analytical results are reported in percent asbestos fibers which is the percent number of asbestos fibers contained in 400 randomly chosen particles of a bulk sample

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  • Weathering Of Chrysotile Asbestos By The Serpentine Rock

    Serpentine rocks can contain asbestos minerals such as chrysotile which is associated with great environmental Lee et al 2008 and epidemiologic concern Mirabelli et al 2008 Chrysotile is a phyllosilicate composed of a layer of silica tetrahedra Si 2 O 5 n 2 n that share apical oxygen with Mg octahedra Mg 3 O 2 OH 4 n 2 n

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  • Serpentine Californias State Rock

    Because serpentine often contains some asbestos and exposure to asbestos fibers have potential humanhealth consequences the Air Resources Board adopted regulations in 1990 restricting the use of this rock type as an unpaved road surfacing material

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  • Weathering Of Chrysotile Asbestos By The Serpentine Rock

    Serpentine rocks can contain asbestos minerals such as serpentinicolous isolates of V leptobactrum was confirmed chrysotile which is associated with great environmental by sequencing of the rRNA internal transcribed spacer ITS Lee et al 2008 and epidemiologic concern Mirabelli region

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  • Managing Asbestos Waste Fact Sheet Department Of Toxic

    Asbestos refers to a family of fibrous minerals found all over world and in the serpentine rock that occurs throughout California When the fibers break off and become airborne they can

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  • Arb Strengthens Asbestos Air Toxic Control California

    Jul 20 2000 Asbestos has been known to cause lung cancer and mesothelioma a cancer of the lining of lung tissue that is nearly always fatal The ARBs action limits the asbestos content of serpentine rock to less than 025 percent the detection limit of current test methods

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  • Naturally Occurring Asbestos In California Basic

    Asbestos minerals belong to either the serpentine mineral group or the amphibole mineral group The most common type of asbestos found in California is chrysotile a serpentine mineral In fact the California state rock is serpentine a testament to how common it is

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  • Learn The Facts About Serpentinite Before Its Removed As

    Aug 05 2010 Why introduce a bill to the state assembly devoted to removing the state rock The primary reason as stated in the bill is because serpentine contains the deadly mineral chyrsotile asbestos a known carcinogen exposure to which increases the risk of cancer mesothelioma

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  • Rule 2232 Fugitive Dust Asbestos Hazard

    asbestos serpentine or ultramafic rock in the area to be disturbed after the exemption is granted then a The owneroperator must comply with the requirements of this Rule b The owneroperator must report the discovery of the naturallyoccurring asbestos serpentine

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  • Weathering Of Chrysotile Asbestos By The Serpentine Rock

    Asbestos weathering by fungi could be envisaged as a bioremediation strategy for hazardous asbestosrich soils eg abandoned mines Fungi that have adapted to live in serpentine sites could be good candidates for this purpose

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  • What Is Serpentine Rock Used For

    The serpentine subgroup part of the kaoliniteserpentine group are greenish brownish or spotted minerals commonly found in serpentinite rocksThey are used as a source of magnesium and asbestos and as a decorative stone The name is thought to come from the greenish color being that of a serpent

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  • Gardener Compensated For Lung Cancer Due To Asbestos In

    Dec 26 2017 Furthermore use of serpentine rock is permitted even though use of asbestos is banned under the Industrial Safety and Health Act Asbestos is seen on a piece of serpentine rock under a microscope

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  • What Is Serpentine Jade

    Jun 13 2020 Is serpentine rock dangerous Serpentine is not a toxic rock It sometimes contains the fibrous mineral chrysotile asbestos but chrysotile asbestos is not the form of asbestos that is proven to cause mesothelioma and lung cancer The rock is also quite pretty to this geologists eye It ranges in color from black to intense jadegreen

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