Asbestos Abatement >> Asbestos Pipe Insulation Removal

In February 2001 the. Environmental Protection Agency, as part of a national evaluation of facilities that received ore from the mine in Libby, Montana, collected surface soil, air, and Asbestos Pipe Insulation Removal surface dust samples from this. W.R. Grace Phoenix facility in Phoenix. 

EPA collected 14 soil samples (including one duplicate), 6 microvacuum dust samples (plus two blanks), and 4 ambient air samples (plus two blanks). Four bulk samples of suspect vermiculite-containing materials were also collected (EPA 2001). The Asbestos Pipe Insulation Removal results of the 2001 investigation are contained in Tables 1–4. 

Table 1 shows six Asbestos Pipe Insulation Removal composite microvacuum dust samples that were collected from horizontal surfaces within the on-site buildings. Appendix A, Figure 2 shows the sample locations. Samples were collected in the Office Building, Production Building, and Warehouse. 

Microvacuum dust samples were collected by drawing air through a mixed cellulose ester (MCE) filter (0.45 micrometer (µm) pore size) at a flow rate of 2.0 liters per minute (L/min.) for 2 minutes at each sampling location. The Asbestos Pipe Insulation Removal sampling was performed using battery-operated sampling pumps. 

To obtain a more representative dust sample, personnel vacuumed three separate 100-square centimeter (cm2 ) Asbestos Pipe Insulation Removal sampling areas per sampling cassette. Samples were analyzed by transmission electron microscopy (TEM) by the International Standards Organization (ISO) Method 10312. 

Two of the Asbestos Pipe Insulation Removal samples were rejected by the laboratory because of damage to the cassettes during shipping (e.g., the plastic seal caps fell off the ends of each cassette). Three of the remaining microvacuum samples were found to contain asbestos. Fourteen samples were collected at 13 locations at unpaved portions of the site (Table 2). 

Sample locations are shown in Appendix A, Figure 3. All of the soil samples were grab samples and Asbestos Pipe Insulation Removal were collected from approximately the top 3 inches of soil using a stainless steel scoop. Soil samples were analyzed using polarized light microscopy (PLM) in accordance with National Institute for Occupational Safety and Health (NIOSH) Method 9002. 

Sample results are reported as tremolite-actinolite to indicate the presence of Libby asbestos. Of the 14 soil samples, Asbestos Pipe Insulation Removal a maximum of 2 percent tremolite/actinolite asbestos was detected in a sample taken along the railroad tracks at the site’s western perimeter. 

In addition, 1 percent chrysotile and Asbestos Pipe Insulation Removal a trace amount of tremolite/actinolite asbestos were detected in a sample that was also collected at the railroad tracks. For the remaining 12 soil samples, a trace amount (i.e., less than 1 percent by visual estimate) of tremolite/actinolite asbestos was detected in each sample. 

A trace amount of chrysotile asbestos was also detected in 3 of the 12 soil samples. The three samples containing trace amounts of chrysotile were collected from unpaved areas along the eastern perimeters of the site and Asbestos Pipe Insulation Removal near the railroad tracks adjacent to the western perimeter. Tables 3 and 4 show the analytic results of the four air samples. 

These samples were collected in the office building, the production building, and Asbestos Pipe Insulation Removal the warehouse. These samples were collected while routine operations were occurring at the site. No deliberate attempt was made to stir up residual contamination;, therefore, these were not aggressive samples. 

Air samples were analyzed by ISO Method 10312: a TEM method that determines the types of asbestos fibers present, Asbestos Pipe Insulation Removal as well as the lengths, widths, and aspect ratios of the asbestos structures. Asbestos structures were detected in one of the four ambient air samples. 

This sample was collected between the exfoliation ovens and Asbestos Pipe Insulation Removal was found to contain 0.0107 s/cc of amphibole asbestos (tremolite-actinolite). The site investigation at the W.R. Grace Phoenix plant is part of ATSDR’s national effort to identify and evaluate potential asbestos exposures that may have occurred at sites where vermiculite mined in Libby, Montana was processed. 

This effort is known as the National Asbestos Exposure Review (NAER). The findings of studies conducted at Libby linked asbestos exposure with several health effects (ATSDR 2002; Peipins et al. 2003) and Asbestos Pipe Insulation Removal led to the current investigation of Libby-vermiculite processing sites, including the W.R. Grace Phoenix facility. 

Significantly, however, Asbestos Pipe Insulation Removal the asbestos exposures documented in the Libby community are in many ways unique to that community. Exposures in Libby include factors that will not be present as a group at other sites where Libby vermiculite was processed or handled. 

Asbestos Overview Asbestos is a general name applied to a group of silicate minerals consisting of thin, Asbestos Pipe Insulation Removal separable fibers in a parallel arrangement. Asbestos minerals fall into two classes: serpentine and amphibole. Serpentine or chrysotile asbestos has relatively long and flexible crystalline fibers; it is the predominant type of asbestos used commercially. 

Amphibole asbestos minerals are brittle and Asbestos Pipe Insulation Removal have a rod- or needle-like shape. Amphibole minerals regulated as asbestos by EPA and OSHA include five classes: • fibrous tremolite, • actinolite, • anthophyllite, • crocidolite, and • amosite. 

Other amphibole minerals such as winchite and richterite can, however, Asbestos Pipe Insulation Removal exhibit fibrous asbestiform properties (ATSDR 2001). Asbestos fibers do not have any detectable odor or taste. They do not dissolve in water or evaporate, and they are resistant to heat, fire, and chemical and biological degradation. 

The vermiculite mined at Libby contains amphibole asbestos, with a characteristic composition including tremolite, actinolite, richterite, and winchite; Asbestos Pipe Insulation Removal this material will be referred to as Libby asbestos. The raw vermiculite ore was estimated to contain up to 26% Libby asbestos as it was mined (MRI 1982). 

For most of the mine’s operation, Asbestos Pipe Insulation Removal Libby asbestos was considered a byproduct of little value and was not used commercially. The mined vermiculite ore was processed to remove unwanted materials and then sorted into various grades or sizes of vermiculite that were then shipped to sites across the nation for expansion (exfoliation) or use as a raw material in manufactured products. 

Samples of the various grades of unexpanded vermiculite shipped from the Libby mine contained 0.3%–7% fibrous tremolite-actinolite (by mass) (MRI 1982). The following sections provide an overview of several concepts relevant to the evaluation of asbestos exposure, including analytical techniques, toxicity and health effects, and Asbestos Pipe Insulation Removal the current regulations concerning asbestos in the environment. 

A more detailed discussion of these topics will also be provided in Asbestos Pipe Insulation Removal ATSDR’s upcoming summary report for the national review of vermiculite sites.

How Does A Radon Test Work

The meanings of these terms apply specifically to the RPP. The specialized definitions noted here are used in place of those found in standard dictionaries.Accepted application: An Application that has been entered into the Program database. Acceptance date: The Radon Mitigation How Does A Radon Test Work date on which EPA comp  read more..

How To Restore Smoke Damaged Photos

The conservation professional should use the following guidelines and supplemental commentaries together with the AIC Code of Ethics in the pursuit of ethical practice. The commentaries are separate documents, created by the AIC membership, Document restoration How To Restore Smoke Damaged Photos that are intended to amplify this document and to acco  read more..

How To Become An Emergency Planner

Many garage doors can be reinforced at their weakest points. Retrofitting your garage doors involves installing horizontal bracing onto each panel. This horizontal bracing can be Emergency Board up How To Become An Emergency Planner part of a kit from the garage door manufacturer. You may also need heavier hinges and stronger center supp  read more..

Crime Scene Photos

This report describes states' laws that directly address the disclosure of crime scene photographs, autopsy reports, and 911 tapes and transcripts. We conducted a 50-state survey and found (1) nine states that have laws directly addressing the disclosure of Crime Scene Cleanup Crime Scene Photos scene photos, (2) 26 states with laws  read more..

Work Related Lead Exposure

Laboratories performing lead analyses on blood samples drawn in California are required by law to report electronically all results to the California Department of Public Health (CDPH). The Occupational Lead Poisoning Prevention Program (OLPPP) collects test results for adults 16 years of age and ov  read more..

Can Lead At Work Harm My Child

Can Lead at work harm my child? Yes. Your child can get lead poisoning if you or someone who lives in your home works with lead. Some kinds of work make lead dust or fumes. You cannot see lead dust, but it can get on your hands, face, and clothes. You take lead dust from your job to your family when  read more..

Tenants Right About Mold In An Apartment

The meaning of mold sampling results that are in CFU/m2 and CFU/m3 Sampling results for viable (living) microorganisms are presented as concentrations, and the units used will vary depending on the sample collection methods. Air sampling results are reported as Mold Remediation Tenants Right About Mold In An Apartment colony-forming units pe  read more..

Cost Of Removing Vinyl Asbestos Floor Tile

Certification of individuals required; exemptions; qualifications; application; fee; renewal. (a) Except as otherwise provided in this act, no individual person shall engage in an asbestos project unless the person holds a Asbestos Abatement Cost Of Removing Vinyl Asbestos Floor Tile certificate issued by the secretary for that purpose.Â&nb  read more..

Requirements For Workers Exposed To Lead

Requirements for Workers Exposed to Inorganic Lead Under the standard for inorganic lead in the construction industry, initial medical surveillance consisting of biological monitoring to include blood lead and ZPP level determination shall be provided to employees exposed to lead at or Lead Paint Removal Requirements For Workers Exposed To Lead abo  read more..

How To Promote Emergency Preparedness

Bomb Threat If you receive a bomb threat telephone call:Remain calm.Listen carefully. Be polite and show interest.Try to keep the caller talking to learn more information. If possible, Emergency Board up How To Promote Emergency Preparedness write a note to a colleague to call the authorities or, as soon as the caller hangs up, immediately   read more..