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Title: CY2017 Quarter 1 Asbestos Report

Authors:
 [1]
  1. National Security Technologies, LLC, Mercury, Nevada
Publication Date:
Research Org.:
Nevada Test Site/National Security Technologies, LLC (United States)
Sponsoring Org.:
USDOE Office of Environmental Management (EM); USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1416376
Report Number(s):
DOE/NV/25946-3179
DOE Contract Number:
DE-AC52-06NA25946
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES

Citation Formats

Gregory, Louis. CY2017 Quarter 1 Asbestos Report. United States: N. p., 2017. Web. doi:10.2172/1416376.
Gregory, Louis. CY2017 Quarter 1 Asbestos Report. United States. doi:10.2172/1416376.
Gregory, Louis. Mon . "CY2017 Quarter 1 Asbestos Report". United States. doi:10.2172/1416376. https://www.osti.gov/servlets/purl/1416376.
@article{osti_1416376,
title = {CY2017 Quarter 1 Asbestos Report},
author = {Gregory, Louis},
abstractNote = {},
doi = {10.2172/1416376},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Apr 17 00:00:00 EDT 2017},
month = {Mon Apr 17 00:00:00 EDT 2017}
}

Technical Report:

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  • This is the 4th quarter report for disposal of asbestos.
  • The report provides a sampling and analysis method for the determination of asbestos in the air to provide results suitable for supporting risk assessments at Superfund sites. Part 2 presents the technical background and considerations addressed during the development of the method.
  • A bibliography of selected documents and reports issued by the U.S. Environmental Protection Agency on electron microscopy has been assembled as a quick reference document; several additional reports from other government agencies are also included. This document also includes summaries of electron microscopy studies currently sponsored by the U.S. Environmental Protection Agency. It was prepared for international distribution at the Asbestos International Association's Third Colloquium on Dust Measuring Techniques and Strategy held in Cannes, France, June 10-12, 1980.
  • Physicochemical studies of the manner in which hydroxyl and other ions leave the surfaces of asbestos minerals as a function of aging time in water are presented. In relatively pure water systems a parallelism is noted between magnesium dissolution and pH change for all asbestos minerals studied. The magnesium and hydroxyl dissolution reactions are diffusion-controlled. Silica is more readily dissolved from crocidolite than from either chrysotile or amosite. Electrokinetic work shows that chrysotile placed in water initially has a surface approaching that of pure magnesium hydroxide, but after long aging in water the surface approaches that of nonasbestiform serpentine. Attemptsmore » made to relate pretreatment of asbestos fibers to carcinogenicity and fibrogenicity indicate that chrysotile appears more likely to induce tumors in rats than acid-treated chrysotile or other asbestos minerals.« less
  • Airborne asbestos levels were measured by transmission electron microscopy (TEM), scanning electron microscopy (SEM) and phase constrast microscopy (PCM) before, during, and after removal of sprayed-on acoustical plaster from the ceilings of four suburban schools. Air samples were collected at three types of sites: indoor sites with asbestos-containing material (ACM), indoor sites without ACM (indoor control), and sites outside the building (outdoor control). Bulk samples of the ACM were collected prior to the removal and analyzed by polarized light microscopy (PLM). A vigorous quality-assurance program was applied to all aspects of the study. Airborne asbestos levels were low before andmore » after removal. Elevated, but still relatively low levels were measured outside the work area during removal. This emphasizes the need for careful containment of the work area.« less