an evaluation of airborne beryllium exposures during mining glossary

Glossary of Environmental Terms - legacy.azdeq.gov

Beryllium: A metal hazardous to human health when inhaled as an airborne pollutant. It is discharged by machine shops, ceramic and propellant plants, and foundries. ... Level (HBGL): Represents human ingestion (drinking) levels that are unlikely to result in adverse health effects during long-term exposure. The HBGLs are recommended maximum ...

WhatsApp:+8617329420102

1980-1981 - Fluoride Action Network

NIOSH Regional (III) Industrial Hygienist, Frank A. Lewis, carried out a comprehensive walk-through indirect medical questionnaire interviews and environmental sampling to determine possible employee exposures to beryllium dust, cadium fumes, and fluorides (soluble). It is the judgement of this industrial hygienist that the workers were not ...

WhatsApp:+8617329420102

Wac 296-842-22005:

Use the medical questionnaire in Table 10 when conducting medical evaluations. Note: 1. You may use a physical exam instead of this questionnaire if the exam covers the same information as the questionnaire. 2. You may use online questionnaires if the questions are the same and the requirements in WAC 296-842-14005 of this chapter are met. 3.

WhatsApp:+8617329420102

A Preliminary Study on Mercury Contamination in Artisanal and Small ...

High mercury concentrations were observed in plant samples collected near the refining sites, ranging 0.33-6.51 ug/g, compared with 0.02 ug/g in Wet Thay Village, where no mercury use was reported. Correlation coefficients between Hg and other heavy metals showed that no heavy metal concentration significantly correlated with that of Hg.

WhatsApp:+8617329420102

Beryllium - Overview | Occupational Safety and Health Administration

The element beryllium is a grey metal that is stronger than steel and lighter than aluminum. Its physical properties of great strength-to-weight, high melting point, excellent thermal stability and conductivity, reflectivity, and transparency to X-rays make it an essential material in the aerospace, telecommunications, information technology, defense, medical, and nuclear industries.

WhatsApp:+8617329420102

Beryllium OSHA Standard Revisions | Fume Extractors

On January 9, 2017 OSHA updated the beryllium PEL (permissible exposure limit) from 2.0 µg/m 3 to 0.2 µg/m3 for an 8-hour workday. Short term exposure is allowed at a maximum of 2.0 µg/m3 for a 15 minute period1. The PEL and ST were updated due to the higher risk of health impairment and respiratory disease at the existing limit.

WhatsApp:+8617329420102

2 Exposure Assessment | Health Effects of Beryllium Exposure: A ...

Production of beryllium-copper alloys began during the 1920s and was substantially increased during World War II. Until 1969, beryl ore from pegmatite dikes found widely distributed around the world was the only commercial source of beryllium (Rossman et al. 1991). ... Table 2-5 summarizes historical airborne-beryllium exposure studies. Studies ...

WhatsApp:+8617329420102

Characterization and Analysis of Airborne Metal Exposures among Workers ...

When compared to the more toxicologically relevant exposure limit of 0.1 mg/m³, the percent exceedance values for shredding, roasting, and alloying operations are less than 1.0 percent,...

WhatsApp:+8617329420102

The Risk Assessment Information System

Exposure of male and rats before mating, and of rats during gestation and lactation to sodium metavanadate by gavage (maximum of 8.4 mg V/kg/day) did not induce any adverse effects on fertility, reproduction, or parturition; however, doses of 4.2 mg V/kg/day significantly reduced pup size and body weight at birth and 21 days later ...

WhatsApp:+8617329420102

Efficacy of a Program to Prevent Beryllium Sensitization Among New ...

Based on airborne beryllium concentration data, the wire annealing and pickling process was identified as the likely primary source of beryllium exposure in the rod and wire area. 11 This process was enclosed into a restricted access zone (RAZ) in January 2002. Figure 1 shows the evolution of the preventive program from 2000 to 2007.

WhatsApp:+8617329420102

ACRONYMS - Harnett County, North Carolina

The vapor dosage producing the defined threshold (low-level) response in 50 percent of the given population. Within the context of this Glossary, the route of exposure can be either inhalation or percutaneous. (Note that percutaneous vapor effects can also include direct vapor effects upon the eyes.) Threshold Dose

WhatsApp:+8617329420102

Arsenic and Cancer Risk - American Cancer Society

For example: Breathing in high levels of arsenic can cause a sore throat and irritated lungs. Swallowing high levels of arsenic can cause nausea, vomiting, diarrhea, muscle weakness and cramping, skin rashes, and other problems. Exposure to high enough amounts of arsenic can be fatal.

WhatsApp:+8617329420102

TR_redirect - Defense Technical Information Center - DTIC

If you are ineligible to register, you can request this document through FOIA. DTIC's public technical reports have migrated to a new cloud environment. The link you used is outdated. Please use the information below to correct the link. Contact 1-800-CAL-DTIC (1-800-225-3842) if you still have issues. Citations.

WhatsApp:+8617329420102

Beryllium Toxicity: Literature Cited | Environmental Medicine | ATSDR

Beryllium sensitization and disease among long-term and short-term workers in a beryllium ceramics plant. Int Arch Occup Environ Health 74(3):167-76. Henneberger PK, Goe SK, Miller WE, Doney B, Groce DW. 2004. Industries in the United States with airborne beryllium exposure and estimates of the number of current workers potentially exposed.

WhatsApp:+8617329420102

The Beryllium Occupational Exposure Limit: Historical Origin and ... - LWW

The first clear association between beryllium exposure and the disease now known as CBD was a 1946 report by Hardy and Tabershaw that described chronic lung disease in fluorescent light bulb workers. 12 That publication, followed by a 1947 Saranac Lake symposium, 13 initiated a variety of beryllium-related research efforts largely sponsored by AEC.

WhatsApp:+8617329420102

Respirator medical evaluation questionnaire, English (Mandatory ...

Your employer must allow you to answer this questionnaire during normal working hours, or at a time and place that is convenient to you. To maintain your confidentiality, your employer or supervisor must not look at or review your answers, and your employer must tell you how to deliver or send this questionnaire to the health care professional who will review it.

WhatsApp:+8617329420102

Plutonium - Wikipedia

Plutonium is a radioactive chemical element with the symbol Pu and atomic number 94. It is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized.The element normally exhibits six allotropes and four oxidation states.It reacts with carbon, halogens, nitrogen, silicon, and hydrogen.When exposed to moist air, it forms oxides and ...

WhatsApp:+8617329420102

Beryllium - University of Arizona

What are the primary health effects from exposure to Beryllium? During the mining process small particles containing beryllium can be inhaled or they can settle on the skin. Long-term inhalation of beryllium can cause lung cancer. Berylliosis (Chronic Beryllium Disease) can occur from exposures as short as a few months or over 30 years and ...

WhatsApp:+8617329420102

Hazard Communication - Program Kit - Zurich Insurance

A substance that (1) liberates hydroxide (OH) ions when dissolved in water, (2) receives hydrogen ions from a strong acid to form a weaker acid, and (3) neutralizes an acid. Bases react with acids to form salts and water. Bases have a pH greater than 7 and turn litmus paper blue. See Alkali. BCM Blood-clotting mechanism effects. Benign

WhatsApp:+8617329420102

Beryllium: A Modern Industrial Hazard - Annual Reviews

Current beryllium-exposed workers may benefit from screening, which can be defined as "the search for previously unrecognized diseases or physiological conditions that are caused or influenced by work-associated factors" ( 34 ), in that they can choose to limit further beryllium exposure if found to be sensitized.

WhatsApp:+8617329420102

Handbook on the Toxicology of Metals | ScienceDirect

Understanding the toxicology of metal species has advanced substantially during the past few decades, thanks to the considerable contributions of bioinorganic chemistry, e.g., the discovery that metal species undergo biomethylation and thus can form organometallic compounds. ... Airborne beryllium exposure has been associated with heart disease ...

WhatsApp:+8617329420102

Safety/Hazard Glossary — CNM

Target Organ Toxin A toxic substance that attacks a specific organ of the body.For example, over-exposure to carbon tetrachloride can cause liver damage. TCC Tag (Tagliabue) Closed Cup.See Flashpoint. TCL Toxic concentration low, the lowest concentration of a gas or vapor capable of producing a defined toxic effect in a specified test species over a specified time.

WhatsApp:+8617329420102

BERYLLIUM AND BERYLLIUM COMPOUNDS - NCBI Bookshelf

deubner et al. (2001a) analysed 34307 airborne beryllium measurements (general air, breathing zone, and personal lapel) collected during 1970-99 at a beryllium mining and extraction facility in delta, ut, usa, and compared them to a mixed beryllium products facility and a beryllium ceramics facility located in elmore, oh and tucson, az, .

WhatsApp:+8617329420102

sor.epa.gov

Acid Mine Drainage Drainage of water from areas that have been mined for coal or other mineral ores. The water has a low pH because of its contact with sulfur-bearing material and is harmful to aquatic organisms. ￻ ￹ Acid Neutralizing Capacity Measure of ability of a base (e.g. water or soil) to resist changes in pH. ￻ ￹ Acid Rain ￻ ￹

WhatsApp:+8617329420102

TRANSMISSION 101: GLOSSARY | Transmission Intelligence Service

Aug 3, 2021Beryllium Copper (BeCu): A relatively expensive contact material with properties superior to brass and phosphor bronze. It is recommended for contact applications requiring repeated extraction and reinsertion because of its resistance to fatigue at high operating temperatures. Beta particle: A particle emitted from an atom during radioactive decay.

WhatsApp:+8617329420102

Catalog of DTIC Reports (Sorted by Title): Page 9 of 80

EVALUATION OF RMSP TUNGSTEN SHEET. AERODYNAMIC HEAT TRANSFER TO A MELTING BODY. THERMODYNAMIC PROPERTIES OF AIR FROM 1000K TO 10,600K ALONG CONTOURS OF CONSTANT DENSITY, ENTHALPY, AND ENTROPY. THERMODYNAMIC PROPERTIES OF AIR FROM 9500K TO 14,800K ALONG CONTOURS OF CONSTANT DENSITY, ENTHALPY, AND ENTROPY.

WhatsApp:+8617329420102

An evaluation of airborne nickel, zinc, and lead exposure at hot dip ...

The U.S. Department of Energy's Office of Scientific and Technical Information

WhatsApp:+8617329420102

Product catalogue - Geoscience Australia

Geoscience Australia maintains an extensive catalogue for its data, publications, online tools, maps and videos that have been approved for publication. These products are available to the general public free of charge via the Data and Publications Search on the Geoscience Australia internet page https://

WhatsApp:+8617329420102

Note:€Definitions€given€in€many€cases€are ... - Energy

ling€or€managing€exposures€(both€individual€and€collective)€to€the€work€force€and€the€general€public€and ... .€€An€evaluation€that€provides€sufficient€evidence€and€analysis€for€deter mining€whether€an€environmental€impact€statement€is€required€or€a€finding€of€no ...

WhatsApp:+8617329420102

Wac 296-307-62005:

Examples of moderate work effort are sitting while nailing or filing; driving a truck or bus in urban traffic; standing while drilling, nailing, performing assembly work, or transferring a moderate load (about 35 lbs.) at trunk level; walking on a level surface about 2 mph or down a 5-degree grade about 3 mph; or pushing a wheelbarrow with a heavy load (about 100 lbs.) on a level surface.

WhatsApp:+8617329420102

(PDF) Evaluation of Respirator Filters for Asbestos Fibers - ResearchGate

Secondary objectives were to evaluate the influence of the mode of absorption (respiratory or oral ingestion), the type of exposure (occupational or environmental), and other factors such as...

WhatsApp:+8617329420102

Encyclopedia | Free Online Encyclopedia

Encyclopedia - Online dictionary and encyclopedia with pictures, facts, and videos. Get information and homework help with millions of articles in our FREE, online library.

WhatsApp:+8617329420102

Learn Some Stuff | IX Power Clean Water

Aug 3, 2022250. At a level of 250 mg/L, sulfate can impart a bitter to salty taste to the water, but at a level of over 500 mg/L the sulfate can have a laxative effect. SulfurClear. 375.2, Rev. 2.0. Thallium. 0.002. can result in hair loss and can cause changes in blood chemistry and problems with the kidney, intestine, and liver.

WhatsApp:+8617329420102

CLINICAL OVERVIEW OF OCCUPATIONAL LUNG DISEASE - ScienceDirect

OCCUPATIONAL LUNG DISEASE 0033-8389/92 $0.00 + .20 CLINICAL OVERVIEW OF OCCUPATIONAL LUNG DISEASE Gary R. Epler, MD Although the workplace has been a source of lung injury for centuries, awareness of the types of injuries has been highly variable. In some instances, social and economic forces resulted in ignoring the problem.

WhatsApp:+8617329420102

Beryllium: Hazards evaluation, facility classification, consequence ...

Beryllium aerosol exposure can cause: (1) acute exposure (short term) from Emergency Response Planning Guideline-3, -2 (ERPG-3, -2) levels; and (2) chronic (long term) from sensitization and...

WhatsApp:+8617329420102

Arizona | Asbestos Mining and Occupational Exposure - Mesothelioma Hub

Risk of Asbestos Exposure in Arizona. Asbestos is a fibrous mineral mined for its durability and heat resistance. The Environmental Protection Agency (EPA) started referring to the mineral as a toxin in 1970 after heavy exposure led to an incline of health-related issues among workers. From the late-1800s until the mid-1900s, the asbestos ...

WhatsApp:+8617329420102

MSHA: INTRODUCTION TO OPERATOR AIR SAMPLING PROGRAMS - Mine Safety and ...

The following information has been prepared as basic guidance material to assist mine operators in planning for effective monitoring of their employees' exposures to silica dust and other airborne contaminants, and in determining the various needs for and adequacy of control measures required by 30 CFR 56/57.5002.

WhatsApp:+8617329420102

Airborne hazards exposure and respiratory health of Iraq and ...

Two case series reported on rare respiratory diseases, and one performed a standardized evaluation of new-onset respiratory symptoms. Respiratory outcomes in relation to proximity to a specific air pollution source (i.e., smoke from burning trash and sulfur mine fire) were described in 2 separate studies.

WhatsApp:+8617329420102

Beryllium - Occupational Safety and Health Administration

Acute Beryllium Disease (ABD) - Acute beryllium disease (ABD) is a rapid onset form of chemical pneumonia that results from breathing high airborne concentrations of beryllium. ABD is generally associated with exposure to beryllium levels at or above 100 μg/m 3 and may be fatal in 10 percent of cases.

WhatsApp:+8617329420102

New reports from the NIOSH health hazard evaluation program

We recommended the employer (1) create a respirator program for employees working in the mine area, (2) periodically monitor employees' exposure to Libby amphibole, (3) analyze samples for Libby amphibole by electron microscopy in addition to current methods, (4) schedule dust generating work when the potential for dust generation is low, and (5...

WhatsApp:+8617329420102

Related Posts

Solve the problem?
Get the latest quotation? Hit The Button.