“Workers who dig or excavate trench­es are at risk of death if they enter an unprotected trench and the walls col­lapse. However, hazards associated with trench work and excavation are well defined and preventable. The OSHA standard for excavation and trenching, known as 29 CFR* 1926 Subpart P, de­scribes the precautions needed for safe excavation work.

There is no reliable warning when a trench fails. The walls can collapse sud­denly, and workers will not have time to move out of the way. Even though small amounts of dirt may not seem treacherous, a single cubic yard of dirt can weigh more than 3,000 pounds, which can fatally crush or suffocate workers [Deatherage et al. 2004]. Even small, solid pieces of dirt can cause se­rious injuries.”

This is the first few lines from a new Workplace Solutions from NIOSH on Trench Cave-Ins, Preventing Worker Deaths from Trench Cave-ins.

NIOSH has produced many Workplace Solutions brochures available to the business community on a variety of safety topics. Many of these publications are free when ordering them from NIOSH. Our federal government at work.

PEL and REL are acronyms used by the safety industry to define Permissible Exposure Limits (OSHA term) and Recommended Exposure Limits (NIOSH term).

In 1974, NIOSH joined OSHA in developing a series of occupational health standards for substances with existing PELs. OSHA sets enforceable permissible exposure limits (PELs) to protect workers against the health effects of exposure to hazardous substances. PELs are regulatory limits on the amount or concentration of a substance in the air. They may also contain a skin designation. OSHA PELs are based on an 8-hour time weighted average (TWA) exposure. Together NIOSH and OSHA set limits for 380 hazardous chemicals.

OSHA currently has about 500 permissible exposure limits (29 CFR part1910.1000), while NIOSH has about 700 RELs. NIOSH is able to evaluate them while OSHA PEL limits has not be updated since late 1960’s.

Acting under the authority of the Occupational Safety and Health Act of 1970 (29 USC Chapter 15) and the Federal Mine Safety and Health Act of 1977 (30 USC Chapter 22), NIOSH develops and periodically revises recommended exposure limits (RELs) for hazardous substances or conditions in the workplace. NIOSH also recommends appropriate preventive measures to reduce or eliminate the adverse health and safety effects of these hazards.

The NIOSH Web site features many different types of databases and information collections. The most popular databases include the International Chemical Safety Cards, NIOSH Pocket Guide to Chemical Hazards, and NIOSHTIC-2.

Chemical Databases:

· Immediately Dangerous to Life and Health (IDLH)
Provides the immediately dangerous to life or health air concentration values (IDLHs) for substances and the criteria and information sources that have been used to determine these values.

· International Chemical Safety Cards (WHO/IPCS/ILO)
ICSC cards summarize essential health and safety information on chemicals for their use at the “shop floor” level by workers and employers in factories, agriculture, construction and other work places.

· Manual of Analytical Methods (NMAM)
NMAM is a collection of methods for sampling and analysis of contaminants in workplace air, and in the blood and urine of workers who are occupationally exposed.

· NIOSH Pocket Guide to Chemical Hazards (NPG)
The NPG is intended as a source of general industrial hygiene information on several hundred chemicals/classes for workers, employers, and occupational health professionals.

·  The Emergency Response Safety and Health Database (ERSH-DB)
Developed by NIOSH for the emergency response community, The ERSH-DB contains accurate and concise information on high-priority chemical, biological and radiological agents that could be encountered by personnel responding to a terrorist event.

·Occupational Safety and Health Guidelines for Chemical Hazards
Summarizes information on permissible exposure limits, chemical and physical properties, and health hazards. It provides recommendations for medical surveillance, respiratory protection, and personal protection and sanitation practices for specific chemicals that have Federal occupational safety and health regulations.

· OSHA 1988 Permissible Exposure Limits (PELs)
PELs are OSHA comments from the January 19, 1989 Final Rule on Air Contaminants Project extracted from 54FR2332 et. seq. This rule was remanded by the U.S. Circuit Court of Appeals and the limits are not currently in force.

·Specific Medical Test Published in the Literature for OSHA Regulated Substances (MEDTEST)
The MEDTEST database lists the specific medical tests published in the literature for OSHA regulated substances. Updates of OSHA mandated tests (July 1, 2000) and NIOSH/OSHA recommendations are included.

Do you think a health hazard exists in your workplace? Do any of the following stories resemble situations at your workplace?

• A factory worker was feeling numbness and tingling in her fingers. She learned that three coworkers had the same problem, and two had headaches while at work but not over the weekend. Some workers said the air at work smelled bad. Their supervisor noticed the smell but didn’t think it was anything to worry about.
• A manager noticed that employees in one work area had more skin rashes in the past year than the year before. He wanted to know why, but didn’t know what to do.
• A work crew was putting cement tiles on a roof. They were working outside, but the air seemed dusty. The saws used to cut the tiles were noisy. Someone told them that this work was dangerous and they should have it checked out.

At no cost to employers or employees, or their representatives, the NIOSH Health Hazard Evaluation (HHE) program may be able to help with problems like these. This site lets you know about the program and how to ask for NIOSH help. It also has links to reports from thousands of HHEs done by NIOSH.

What is a Health Hazard Evaluation?

An HHE is a study of a workplace. It is done to learn whether workers are exposed to hazardous materials or harmful conditions. On the basis of the information you provide, NIOSH responds to an HHE request in one of the following ways:

• NIOSH staff responds in writing with helpful information or a referral to a more appropriate agency.
• NIOSH staff calls to discuss the problems and how they might be solved.

NIOSH staff visits the workplace. When this happens, they will meet with the employer and the employee representatives to discuss the issues. They will tour the workplace. They may review records about exposure and health, interview or survey employees, measure exposures, and do medical testing. These activities may happen during one or more visits. At the end of this evaluation, NIOSH will provide a written report to the employer and to the employee representatives. This can take from a few months to a few years, depending on the type of evaluation.

Who Can Request an HHE?

Private sector and Federal workplaces

An employee can request an HHE if he or she is currently an employee at the workplace of concern and has the signatures of two other employees. If the workplace has three or fewer employees, the signature of only one employee is enough.

An officer of a labor union that represents employees for collective bargaining can request an HHE.

Any management official may request an HHE on behalf of the employer.

For anyone who submits a request, NIOSH will not reveal to the employer the names of the persons who made the request if they indicate this on the request form

State or local government workplaces

When the workplace is part of a State or local government, NIOSH authority is more limited than for the private and Federal sectors. The cooperation of the employer may be necessary before NIOSH can do an evaluation.

Should you request an HHE?

When there is concern about a health hazard in a workplace, you can request an HHE, file a complaint with the Occupational Safety and Health Administration (OSHA), or request help from the OSHA Consultative Service. Some things to consider for each of these options are listed below.

1. When to request an HHE from NIOSH

You are an employee, employee representative, or employer and the following apply:

• Employees have an illness from an unknown cause.
• Employees are exposed to an agent or working condition that is not regulated by OSHA.
• Employees experience adverse health effects from exposure to a regulated or unregulated agent or working condition, even though the permissible exposure limit is not being exceeded.
• Medical or epidemiological investigations are needed to evaluate the hazard.
• The incidence of a particular disease or injury is higher than expected in a group of employees.
• The exposure is to a new or previously unrecognized hazard.
• The hazard seems to result from the combined effects of several agents.

2. When to request help from the OSHA Consultation Program (http://www.osha.gov/dcsp/smallbusiness/consult.html):

You are a small business owner and you want:

• assistance in recognizing hazards in your workplace.
• suggestions or options for correcting safety and health issues.
• assistance in developing or maintaining an effective safety and health program.
• to reduce workers compensation cost and improve employee morale..

The OSHA On-site Consultation Program:

• is a free service.
• is delivered by state (and territorial) governments using well-trained safety and health professionals.
• is separate from enforcement.
• is confidential. The company’s name, and any other identifying information provided about the workplace, plus any unsafe or unhealthful working conditions that the consultant uncovers, will not routinely be reported to OSHA enforcement personnel.
• does not issue and citations, penalties, or fines.
• will provide you a confidential, written report that summarizes the consultant’s findings.
• requires the correction of hazards identified by the consultant(s).
• under specific circumstances, employers with exemplary safety and health programs can be recommend for recognition and provided with an exclusion from general schedule inspections.

3. When to file a complaint with OSHA (www.osha.gov/as/opa/worker/index.html):

You are an employee and the following situations apply*:

• Immediate enforcement by a regulatory agency is needed.
• Employees want the employer to comply with existing health and safety standards.
• The hazard is well recognized.
• An OSHA standard is known to adequately protect employees from the hazard.

* [Employers in the Federal sector may wish to explore the services available through the Division of Federal Occupational Health (DFOH), which maintains an office in each Federal region. State and local government employers may be eligible for help under the OSHA Consultation Program operating in their State. The State or local health department may also be able to help with occupational safety and health issues.]

How Does NIOSH Respond to an HHE Request?

NIOSH logs in each request for an HHE and generally sends a letter to the person making the request. Most often this happens within a few weeks.When NIOSH decides to send information or make a referral to another agency, usually a letter is sent within 4–6 weeks.

When NIOSH decides that telephone consultation or a workplace visit is needed, a project officer is assigned. Usually, within 4–6 weeks, the project officer contacts the person who sent in the request. When the request is made by an employee or union, NIOSH also contacts the employer to let them know about the request and to arrange for a site visit. Typically, NIOSH does not conduct surprise visits.

What protections are provided for employees who request and participate in HHE investigations?

Confidentiality

If desired and noted on the HHE request form, NIOSH will not reveal to the employer the names of the persons who made the request. Personal information from records, questionnaires, interviews with NIOSH investigators, and individual medical results will be safeguarded in accordance with provisions of the Privacy Act.

Anti-discrimination Provisions

The Occupational Safety and Health Act and the Federal Mine Safety and Health Act forbid employers from retaliating or punishing employees for making HHE requests or cooperating with NIOSH investigators (see Section 11(c) of the Occupational Safety and Health Act or Section 105(c) of the Mine Safety and Health Act). The enforcement of these anti-discrimination provisions is the responsibility of the U.S. Department of Labor. If discrimination is suspected, contact the nearest OSHA or MSHA office immediately.

Procedural Rights of NIOSH and Employee or Employee Representatives

There are 7 legal rights of NIOSH and employees or employee representatives that NIOSH considers non-negotiable:

• NIOSH and its representatives have the right to enter the workplace to conduct HHE investigations.
• NIOSH and its representatives have the right to access information and records maintained by the employer that are pertinent to the HHE investigation.
• NIOSH and employees (including management employees) have the right to private and confidential interviews.
• Employee representatives, including an employee requestor and a representative of any union representing the affected employees, have the right to accompany NIOSH investigators during the initial inspection of any workplace to be evaluated.(NIOSH investigators may have additional employee representatives accompany them if necessary to aid in the investigation.)
• Employee representatives have the right to participate in an opening and closing conference with NIOSH investigators at the start and conclusion of a NIOSH investigation at the workplace.
• Employees have the right to wear NIOSH sampling devices and participate in medical tests when offered or requested by NIOSH. (This also applies to management employees.)
• Employees have the right to read or obtain copies of all HHE interim and final reports. (The employer is required to post the final report in the workplace for 30 days, or supply a list of names and addresses of affected employees so that NIOSH can mail the report directly to them.)

Procedural Rights of the Employer

Regardless of who submitted the request for an HHE, employers have the following rights during HHE investigations:

• To obtain a copy of the HHE request (excluding the identity of confidential requestors and any accompanying information of a personal nature.)
• To obtain verbal accounts from NIOSH investigators concerning plans, procedures, and findings at conferences at the beginning and conclusion of NIOSH visits to the workplace.
• To accompany NIOSH investigators during the initial inspection of the workplace to be investigated.
• To observe NIOSH investigative procedures during the HHE, except for certain confidential NIOSH-employee interactions, such as private interviews and medical test procedures.
• To identify, at the start of the investigation, information that is considered trade secret, and to have that information safeguarded by NIOSH unless NIOSH follows procedures outlined in 42 CFR 85.7(b) to remove the trade secret designation from such information. (These procedures provide an opportunity for the employer to defend the trade secret designation.)
• To require that NIOSH officers comply with all safety and health rules in the workplace, and conduct the investigations in a manner that does not unreasonably disrupt operations.

Role of the Employee Representative

The local, national, or international union may submit an HHE request on behalf of employees it represents. Two employees may authorize a third employee to submit an HHE request on their behalf.

The employee representative has the following rights:

• To accompany NIOSH investigators on the initial inspection of the workplace.
• To convey to the NIOSH investigators, privately if requested, additional information related to the HHE request.
• To participate in the opening and closing conferences.
• To receive copies of all interim and final reports

How Are HHE Results Reported?

NIOSH reports its findings and recommendations to employers, employees, and employee representatives. Verbal reports are normally provided to employer and employee representatives during a closing conference at the conclusion of a site visit, and by telephone. Often, results are only preliminary or incomplete at that time. Written interim reports are sometimes provided while an investigation is still in progress.

When all the information and data have been analyzed, NIOSH issues a report of its final determination, giving findings and recommendations. Copies of this report are sent to the requestor, the employer, employee representatives, OSHA, and other appropriate agencies.

The employer is required to post the final report in a place accessible to employees from all areas evaluated (alternatively, the employer may give NIOSH names and addresses of affected employees to permit NIOSH to mail the report to each affected employee.) Although NIOSH has no authority to force the employer to adopt its recommendations, experience has shown that most employers attempt to address any problems identified in the HHE report.

By What Authority Does NIOSH Conduct HHEs?

In private sector workplaces, NIOSH is supported by the following:

• The Law

Section 20(a)(6) of the Occupational Safety and Health Act (Public Law 91-596, 91st Congress, S.2193, December 29, 1970), 29 USC 669 (a)(6), authorizes the Secretary of Health and Human Services (delegated to NIOSH), “following a written request by any employer or authorized representative of employees, to determine whether any substance normally found in the place of employment has potentially toxic effects in such concentrations as used or found.” Section 501(a) of the Federal Mine Safety Act of 1977 authorizes NIOSH, “upon the written request of any mine operator or authorized representative of miners, to evaluate potentially hazardous or toxic effects of substances, physical agents, or equipment found or used in mines.”

• Federal Regulations

The regulations governing NIOSH procedures for conducting HHEs are published in Title 42, Code of Federal Regulations, Part 85; Requests for Health Hazard Evaluations (42 CFR 85).

In Federal agency workplaces, NIOSH is supported by the following:

• The Law

Section 19 of the Occupational Safety and Health Act (29 USC 668) requires the head of each Federal agency to “establish and maintain an effective and comprehensive occupational safety and health program.”

• Executive Order

Executive Order 12196 of February 26, 1980, “Occupational Safety and Health Programs for Federal Employees.”

• Federal Regulations

Title 29, Code of Federal Regulations, Part 1960; Basic Program Elements for Federal Employees Occupational Safety and Health

Programs and Related Matters (29 CFR 1960). Section 1960.35 of these regulations describes the procedures for requesting HHEs in Federal agency workplaces.  NIOSH follows the procedures outlined in the regulations governing HHEs (42 CFR 85) when evaluating Federal agency workplaces.

In other government agency workplaces, NIOSH is supported by the following:

• The Law

Section 18 of the Occupational Safety and Health Act (29 USC 667) permits OSHA to approve a plan under which the State assumes responsibility for developing and enforcing occupational safety and health standards. Section 18(c)(6) requires that such a plan, to be approved, must contain satisfactory assurances that the State will “establish and maintain an effective and comprehensive occupational safety and health program applicable to all employees of public agencies of the State and its political subdivisions.” Although approved State plans do not ordinarily extend the right to request HHEs to State employees and employers, the State agency charged with carrying out this plan has right-of-access to State and local government workplaces, and could request technical assistance from NIOSH in evaluating the workplaces.

• Federal Regulations

In cases where NIOSH responds to requests to evaluate State or local government workplaces, the procedures outlined in 42 CFR 85 are followed.

Occupational Medicine Rotation Program

The NIOSH Health Hazard Evaluation and Technical Assistance Branch provides hands-on, one- and two-month workplace training opportunities to Medical Residents. Residents join staff on a combination of workplace and epidemiologic investigations, public inquiries, health and safety assessments on today’s health and safety topics and learn to plan and conduct worksite health evaluations. Residents gain understanding of the role and function of CDC/NIOSH regarding occupational health research and service.

NIOSH Update: Aging Workers at Higher Risk of Death, Severe Injury, Conference Report Suggests Ways to Keep Workers Healthy and Productive

Policy Shifts on Work Environment, Health Promotion, Continued Research Needed to Maintain Healthy U.S. Workforce

A report of conference presentations and discussions among participants from the National Academies of Science, universities and research institutions, and representatives of professional associations, industry and labor, recommends attention to workplace environments to maintain “work ability” as workers age, along with legislative fixes and research to fill in knowledge gaps for keeping workers healthy and productive.

According to researchers using U.S. Bureau of Labor Statistics (BLS) data, older workers are more severely injured and die with greater frequency from work-related injuries than younger workers. Older workers also have longer recovery periods than younger workers. These findings raise health care delivery and economic issues for the nation, as more workers are choosing to delay retirement due to collapsed 401(k) plans and savings. BLS uses workers age 55 and older in its calculations, although the rates rise sharply for those workers over age 65. Other agencies and organizations define the term as age 50 or 55 and up. The Department of Labor uses age 40 as a starting point for “older worker.”

“The issue of healthy aging is critically important as the U.S. economy is revitalized. As we go forward in time, the demand for workers will grow but fewer workers will be entering the workforce and a larger proportion of the workforce will be older. This is a simple reality of demographics,” said National Institute for Occupational Safety and Health (NIOSH) Director John Howard, M.D. “Having a healthy, productive workforce will help sustain economic growth in the decades ahead. We must take steps now to help all workers stay safe and healthy at work as they age. We must also take steps to address the special needs of older workers who, more and more, will be staying on the job past traditional retirement age.”

The conference, held Feb. 17-18, 2009, at the National Labor College in Silver Spring, Md., paid particular attention to workers in physically demanding jobs, such as construction and health care. Health care cost-containment has meant longer work hours and increased stress among health care workers, which has led to a shortage of nurses. Thirty-nine percent of RNs were 45 years or older in 2002.

Construction workers already suffer the highest number of fatalities in any U.S. industry.  But the death rate among construction workers 55 years and older was nearly 80% higher than that of construction workers under 35 in 2007. And like the rest of the workforce, the average age of a construction worker is rising; it was 40.4 in 2008, which is 4.4 years older than in 1985. The average retirement age among construction workers is 61.

“Our nation loses an average of four construction workers every workday to a job-related incident – and that’s been consistent for more than a decade,” said Pete Stafford, executive director of CPWR – The Center for Construction Research and Training, one of the conference’s co-sponsors. “As we start to rebuild our nation’s crumbling infrastructure and venture into green jobs, we want to make sure jobsites do not become a source of pain and death for older workers who have so much to contribute, especially in mentoring younger workers.”

Howard believes the conference confirms and expands on a 2004 report from the National Academies of Science that recognized the deteriorating conditions facing an aging workforce, to the detriment of workers, their families, and businesses. “Health and Safety Needs of Older Workers” made clear recommendations to increase research efforts toward preventing work-related injury, illness and fatality among aging workers.   These recommendations have yet to be adopted.

“The discussions and recommendations from the conference point to steps that can be taken to address needs identified in the 2004 report  that were never acted upon,” said Jordan Barab, acting Assistant Secretary of Labor for  the Occupational Safety and Health Administration (OSHA). “As those discussions make clear, a sustainable workforce will be a critical component of a secure and prosperous 21st century economy. The work we do now is an investment in a stronger workforce for tomorrow.”

The Healthy Aging for Workers conference was funded through grants from NIOSH and CPWR. The Association of Occupational and Environmental Clinics and the Society for Occupational and Environmental Health were conference sponsors. Additional co-sponsors were AARP, OSHA, the American Public Health Association, the Veterans Administration, and the University of Maryland Work and Health Research Center.

The full conference report and presentations from national and international researchers on occupational health and safety issues can be found on the Society for Occupational and Environmental Health’s Web site.

The WorkLife Initiative is the NIOSH response to the 2004 Steps to a Healthier US Workforce Symposium. That Symposium, organized by NIOSH with over 20 co-sponsors and 50 supporters, reviewed the science, economics, and current practices coordinating health protection and health promotion to improve the health of workers. Symposium participants called on NIOSH to continue to show leadership in promoting research, policy, and practice in these areas.

The first major NIOSH action in the Initiative was to issue a RFA to establish Centers of Excellence. The awards for the two new Centers for Excellence to Promote a Healthier Workforce were announced in late 2006. Each Center will receive $1 million for five years through a cooperative agreement to establish trans-disciplinary research, education, and translation programs to facilitate the integration of health protection and promotion in the workplace. The grant recipients are Dr. Laura Punnett for the Center for the Promotion of Health in the New England Workplace, at the University of Massachusetts at Lowell and Dr. James Merchant for the Healthier Workforce Center for Excellence at the University of Iowa. The Center at the University of Massachusetts Lowell will evaluate several models for integrating health promotion with occupational ergonomic and mental health interventions with a strong emphasis on worker involvement. The University of Iowa Center will investigate the effects of different integrated health protection and health promotion programs tailored to meet the needs of three different work environments. NIOSH will work with these Centers and our other partners to improve the worklife of workers through implementation of this important Worklife Initiative.

This Instruction initiates and establishes a hearing conservation program that complies
with 29 CFR 1910.95 to protect OSHA personnel covered by PER 04-00-003 from the
effects of occupational noise exposure. The Hearing Conservation Amendment to the
OSHA Occupational noise exposure standard, 29 CFR 1910.95, requires that employers
establish a hearing conservation program for employees whose noise exposures equal or
exceed an 8-hour time-weighted average (TWA) of 85 dBA.

Employers are now mandated to have a hearing conservation program that includes:

• Monitoring of work area
• Audiometric testing program
• Employee notification
• Proper PPE
• Training on hearing protectors
• Annual employee training
• Proper Recordkeeping

The Compliance Resource Center reported earlier that NIOSH had developed online tool to allow users to check their hearing protection in a minute or less.  With this new directive employers might want to take a quick look at this online tool.

Last April, The Compliance Resource Center reported that NIOSH, OSHA and NHCA (National Hearing Conservation Assoication), recently signed and agreement  to help prevent work-related hearing loss.
Now researchers at NIOSH’s Pittsburgh Research Laboratory have developed QuickFitWeb, an online tool to allow users to check their hearing protection in a minute or less. The site notes that ear muffs, ear plugs, and other hearing protection devices can reduce the risk of hearing loss, but only if the wearer gets a good fit and wears them properly. The NIOSH sound player tool allows users to perform a quick test of whether they are getting at least a minimal 15 decibel (dB) level of protection.

The test sounds are bands of random noise with a center frequency of 1000 Hz. This is the same type of sound used in standard hearing protector ratings including the “American National Standard Methods for Measuring the Real-Ear Attenuation of Hearing Protectors” (ANSI S12.6). Both tracks are the same, but the second track is 15 decibels (dB) louder than the first. Most hearing protectors will block or “attenuate” sound by more than 15 dB if they are the right size and shape to fit the ears and are worn correctly. A sound that is barely audible at a worker’s threshold of hearing without hearing protection should be inaudible though hearing protection even if it’s boosted by 15 dB.

To use the tool, visit www.cdc.gov/niosh/mining/topics/hearingloss/quickfitweb.htm.

Safety Online recently reported that NIOSH, OSHA and NHCA (National Hearing Conservation Assoication), recently signed and agreement  to help prevent work-related hearing loss.  The partners agreement is to provide resources, speakers, recommend best practices and more.

Currently NISOH has a Hearing Conservation Program Evaluation Checklist available.  Over a year ago I reported  on this site, that International Safety Equipment Association petitioned OSHA about reducing the level of noise exposure in the work place.  Now there will be a greater effort to protect workers hearing and make more resources available to employers.

ON Oct. 5, NOISH announced the online availability of a publication that offers recommendations to prevent injuries and deaths while working with metal ladders around overhead power lines.

A NIOSH review of the U.S. Bureau of Labor Statistics Census of Fatal Occupational Injuries data from 1992 to 2005 identified at least 154 electrocution deaths that resulted from contacting overhead power lines with portable metal ladders (excluding truck-mounted and aerial ladders). Of these 154 deaths, 36 involved a person of Hispanic origin. Although Hispanic workers accounted for 23 percent of these electrocution deaths due to ladders contacting power lines, it is estimated that they made up only 11 percent of the workforce during this period.

Employers, workers, general contractors and ladder manufacturers should take the steps outlined in the NIOSH publication to protect workers while working around overhead power lines. Many of these steps are required or suggested by OSHA regulations.

Steps employers can take include:

• Identify the location of overhead power lines as a routine part of all initial worksite surveys for jobs involving the use of ladders.
• Always note power line heights and distances from work areas on site diagrams to provide key information for site supervisors and workers.
• Avoid or limit proximity to power lines whenever possible. Consider ladder length and room for ladder staging (safely raising and lowering ladders).
• Notify the local electric utility company for assistance if work needs to be done near energized, overhead power lines.

The publication can be accessed at http://www.cdc.gov/niosh/docs/wp-solutions/2007-155.

An arc flash can happen without warning and occurs much too fast for you to react.

The heat released during an arc flash can reach as high as 35,000 degrees Fahrenheit — hotter than the surface of the sun. Large arc flashes can cause an explosion noise loud enough to cause hearing loss and injuries from being thrown back from the electrical explosion.

To better address this issue, the Electrical Safety Foundation International (ESFI) has teamed with NIOSH and the Centers for Disease Control to distribute Arc Flash Awareness, a DVD training course, available in both English and Spanish. The DVD includes basic information about arc flash awareness and contains the first hand accounts of three electrical workers who were severely injured in arc flash accidents.

Surprisingly, it has just been in recent years that the term “arc flash” has garnered much attention. Many companies have started to raise awareness about the problem. Some companies, however, do not think that arc flash is a serious concern because they have not yet had an arc flash incident.

An arc flash can result from the spontaneous failure of equipment during normal operation or from accidentally bridging two live electrical contacts with a conducting object, like a metal screwdriver or wrench. Other causes may include the improper use of electrical multimeters, poor housekeeping that allows the buildup of conductive dust, or severe corrosion that allows connections to break.

How large is the problem?
– According to CapSchell, Inc., a Chicago-based research and consulting firm that specializes in workplace injury prevention, there are five to 10 arc flash explosions every day in the United States.
– The final cost to employers and their insurers for a single, serious injury can approach $10 million. (CapSchell)
– 2,000 workers are admitted annually to burn centers for extended injury treatments caused by arc flash, according to the U.S. Department of Labor.
– A recent study from the National Institute for Occupational Safety and Health (NIOSH) determined 17,101 injuries were caused by electric arc flash burns between 1992 though 2001.

With statistics like this, companies cannot afford to ignore electrical safety issues surrounding accidental electrocution from arc flash explosions.

For more information on Arc Flash or to order a copy of the Arc Flash Awareness DVD visit the ESFI Library on the ESFI’s website, http://www.electrical-safety.org/ or call ESFI at 703-841-3229.