Welders at risk of toxic and explosive fumes

Blast kills temporary worker, critically injures another

Employers need to verify fire and explosion hazards: OSHA

MOSS POINT, Miss. — Two temporary workers hired to cut and weld pipes at the Omega Protein plant in Moss Point on July 28, 2014, had no idea and had no training to know that the storage tank beneath them contained explosive methane and hydrogen sulfide gases.

One of the two men found out later as he lay in a hospital with a fractured skull, internal injuries and broken bones. The second, a 25-year-old man named Jerry Taylor, died when the tank exploded.

The U.S. Department of Labor's Occupational Safety and Health Administration (OSHA) investigated the incident and has found four companies violated safety regulations that could have prevented the tragedy.

The companies are Accu-Fab & Construction Inc., Omega Protein, and JP Williams Machine & Fabrication, all in Moss Point, and Global Employment, in Pascagoula.

Accu-Fab, a metal fabricator, was contracted by Omega Protein to manufacture and erect a wastewater storage tank that required modification of existing pipes.

A staffing agency, Global Employment Services, provided Accu-Fab with the employees needed at Omega. JP Williams Machine, which provides industrial service and repair, was on-site the day of the explosion performing unrelated maintenance activities.

"The Omega Protein plant explosion shines a spotlight on how critical it is for employers to verify, isolate and remove fire and explosion hazards in employee work areas," said Eugene Stewart, OSHA's area director in Jackson. "If the employer ensured a safe environment, this tragic incident could have been prevented."

Repeated violations

OSHA issued 13 citations to Omega Protein, a producer of omega-3 fish oil and specialty fish meal products, for willful, repeated and serious safety violations.

OSHA issued a willful citation for exposing employees to fire and explosion hazards due to Omega management's failure to inform Accu-Fab that the storage tank contained wastewater that could generate hydrogen sulfide and methane gases, which can be highly explosive and toxic, even at low concentrations.

The repeated violations involve not having standard railings on open-sided floors and platforms and failing to label electrical boxes properly.

Omega Protein was cited previously for these same violations in 2012. Additionally, the serious hazards included allowing workers to weld and cut piping on an improperly prepared storage tank containing explosive methane and hydrogen sulfide gases and failing to label or tag the storage tank to note that it contained hazardous chemicals.

OSHA cited Accu-Fab for one willful, four serious and two other-than-serious violations. The willful violation was issued for failure to train workers on chemical hazards in the work area, such as hydrogen sulfide, methane, welding gas and paints.

Global Employment Services was issued a serious citation for this same hazard.

Additionally, both employers were cited for a serious violation for failure to instruct employees about avoiding unsafe work conditions.

Accu-Fab was also cited for failure to ensure employees working on top of a storage tank at heights of up to 29 feet were wearing fall protection and for not recording this fatality or two other recordable injuries.

JP Williams was issued one serious citation for improperly storing oxygen and acetylene cylinders.

Exposure to acetylene can cause headache, dizziness, asphyxiation and even frostbite.

Proposed penalties for the four companies total $187,620.

OSHA has conducted 13 inspections at Omega Protein facilities in Mississippi, Virginia and Louisiana since 1998. The company received citations for noise exposure, personnel protective equipment, machine guarding, welding and cutting and electrical hazards.

Accu-Fab has three prior OSHA inspections, most recently in 2002, and has been cited for scaffolding, forklift, welding, cutting and electrical violations. Both JP Williams and Global Employment have no prior OSHA inspection history.

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Under the Occupational Safety and Health Act of 1970, employers are responsible for providing safe and healthful workplaces for their employees. OSHA's role is to ensure these conditions for America's working men and women by setting and enforcing standards, and providing training, education and assistance. For more information, visit OSHA's website.

Welding and soldering work often releases toxic fumes, which can affect the workers' health and well-being. Electrocorp has designed various welding fume extractors and air cleaners for welding and soldering. 

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Combustible dust to blame for Ontario plant explosion

Companies have to make sure to protect
workers from combustible dust and more.

An explosion and subsequent fire at an industrial facility in Sarnia, Ont. left several employees hospitalized on Oct. 25. One of the workers died of his injuries two days later.

The incident took place at a plant belonging to Veolia Environmental Services, an international company that uses propane and oxygen to conduct thermal spraying of aluminum.

According to information from the provincial Ministry of Labour (MOL), a dust collection system outside of the building exploded and caused structural damage in the middle of the afternoon.

“Five workers were injured in the incident, including two who were critically injured,” confirmed MOL media representative Bruce Skeaff.

“Emergency services were dispatched and attended the scene. The five injured workers were transported to hospital.”

One of the critically injured parties was subsequently airlifted from Sarnia’s Bluewater Health hospital to a London hospital for further treatment.

Eight workers in total were inside the building at the time of the blast, according to media reports.

Skeaff added that MOL inspectors, firefighters and officials from the Ontario Fire Marshal’s office had also attended the scene of the explosion.

“A City of Sarnia engineer attended the scene and declared the building unsafe to enter,” he said.

The MOL issued a requirement to Veolia not to disturb the scene of the incident, under the Occupational Health and Safety Act. The fire was extinguished the next day, and a forensics investigator examined the scene as well.

Carol Gravelle, public relations officer with the Office of the Fire Marshal and Emergency Management (OFM), told COHSN that the office had seized evidence at the site as exhibits for testing offsite.

The OFM “worked with the Ministry of Labour, the coroner’s office, local police and local fire” to investigate the origins of the explosion, Gravelle said.

On Oct. 27, Const. Les Jones of the Sarnia Police Service (SPS) announced in a press release that one critically injured employee — the one who had been airlifted — had died earlier that morning. “Sarnia Police Service will not be releasing his name,” Const. Jones added.

A media statement from Veolia, issued on Oct. 26, said that the company was cooperating fully with the MOL and other authorities in their investigations.

“The employees of Veolia are deeply concerned for our co-workers,” the statement read, “and our thoughts and prayers are with them at this time.”

The MOL continues to investigate, as do the SPS and offsite investigators with the OFM.

Source: OHS Canada

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Failing to address serious hazards may be costly for companies

Workers exposed to combustible dust and other hazards at Illinois cornstarch processing facility

Longtime exposure to chemicals and other
contaminants may affect workers' health.

PARIS, Ill. – Workers were exposed to combustible cornstarch dust, dust particles in excess of permissible exposure limits and other hazards at Septimus Inc.

The U.S. Department of Labor's Occupational Safety and Health Administration has cited the company for 21 serious safety and health violations, carrying proposed penalties of $46,400.

A complaint prompted the inspection at the facility, which processes cornstarch for use in laundry detergent and other products.

"Combustible dust can burn rapidly and explode with little warning, putting workers at risk for severe injury and death," said Thomas Bielema, OSHA's area director in Peoria.

"OSHA's inspection found that Septimus used potential ignition sources, like forklifts and electrical equipment, in areas where combustible dust was present."

OSHA's April 30, 2014, inspection found workers were exposed because processing and dust collection equipment lacked protective covers.

If this dust is suspended in the air in the right concentration, under certain conditions, it can become explosive.

The inspection found the company operated powered industrial vehicles in poor repair that were not rated for use in environments where combustible dust was present.

These vehicles, along with numerous electrical violations, provided potential ignition sources for the dust. The force from such an explosion can cause employee deaths, injuries and destruction of buildings.

The U.S. Chemical Safety and Hazard Investigation Board identified 281 combustible dust incidents between 1980 and 2005 that led to the deaths of 119 workers, 718 injuries and numerous extensively damaged industrial facilities.

Workers were also exposed to airborne concentrations of dust in excess of the permissible exposure limit, which can cause respiratory illness and lung disease. The company failed to implement administrative and engineering controls to reduce exposure limits.

Additional serious violations involved amputation hazards and included lack of machine guarding, failure to implement specific lockout/tagout procedures to prevent machinery from operating during service and maintenance, and workers exposed to fall hazards of 7 feet or greater from unguarded working platforms.

The company also failed to train workers about hazardous chemicals in use at the facility and to mark exit routes clearly and ensure they were free of obstructions.

A serious violation occurs when there is substantial probability that death or serious physical harm could result from a hazard about which the employer knew or should have known.

Septimus has a contract with Tate & Lyle to extrude, dry blend and package cornstarch. The company is owned by The Faultless Starch/Bon Ami Co. of Kansas City, Missouri.

Septimus has 15 business days from receipt of its citations and penalties to comply, request an informal conference with OSHA's area director, or contest the findings before the independent Occupational Safety and Health Review Commission.

Under the Occupational Safety and Health Act of 1970, employers are responsible for providing safe and healthful workplaces for their employees.

OSHA's role is to ensure these conditions for America's working men and women by setting and enforcing standards, and providing training, education and assistance.

Source: OSHA

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Dust and explosion hazards cost company

East Providence, RI, company cited for combustible wood dust and other hazards

Wood dust is a common risk in
wood-working industries.

PROVIDENCE, R.I. – On Aug. 20, 2013, a combustible wood dust explosion and fire occurred at Inferno Wood Pellet Inc. in East Providence, injuring a worker and partially demolishing the building.

The ignition of wood dust in the plant's production room migrated to a retention bin, resulting in an explosion that spread through the building.

An investigation by the Providence Area Office of the U.S. Department of Labor's Occupational Safety and Health Administration found that employees at the plant were exposed to wood dust explosions, deflagrations, or rapid combustion, and other fire hazards due to inadequate or absent preventive and protective measures in the wood pellet processing system and its equipment.

Specifically, OSHA found that the retention bin lacked spark detection, explosion suppression, fire/explosion isolation and explosion venting devices; conveyor systems carrying combustible wood products lacked spark detection, fire suppression and/or fire isolation devices; dust collection systems and dust segregation barriers were not maintained to minimize fire sources; and an opening in the fire wall between the plant's production room and chip room allowed a fireball to enter the chip room and spread the fire.

OSHA identified additional fire hazards at the 275 Ferris Ave. plant, such as the accumulation of combustible wood dust on various locations and surfaces within the plant, an incomplete and inadequate fire prevention plan and lack of dust-tight electrical equipment where combustible wood dust accumulated.

Other hazards included an incomplete respiratory protection program; lack of noise monitoring; inadequate chemical hazard communication and training; excess amounts of liquefied petroleum gas stored in the building; an untrained forklift operator; and lack of procedures and training to ensure that all equipment was properly deenergized to prevent unintended activation.

Because of these and other hazards, OSHA has cited Inferno for 11 serious violations of workplace safety standards and has proposed $43,400 in fines. A serious violation occurs when there is substantial probability that death or serious physical harm could result from a hazard about which the employer knew or should have known.


Detailed information on wood dust hazards and safeguards is available here.

Under the Occupational Safety and Health Act of 1970, employers are responsible for providing safe and healthful workplaces for their employees. OSHA's role is to ensure these conditions for America's working men and women by setting and enforcing standards, and providing training, education and assistance.

Source: OSHA

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Wastewater treatment plants need safety measures in place

OSHA cites NY contractors for safety violations at Canastota Wastewater Treatment Plant

SYRACUSE, NY – Serious workplace safety violations were found in connection with the September 2013 explosion at the Canastota Wastewater Treatment Plant that killed one worker and injured another.

Chemical gases and fumes pose health
risks at wastewater treatment plants.

Joy Process Mechanical Inc. of East Syracuse and M. Hubbard Construction Inc. of Mottville were hired by the plant to replace piping inside a methane gas dome, a confined space.

The Joy Process Mechanical worker was welding inside the dome when the explosion occurred, burning him and a Hubbard Construction worker who was standing atop a stepladder opening to the confined space.

"This tragedy could have been prevented had basic safety precautions been implemented," said Christopher Adams, OSHA's area director in Syracuse. "Confined spaces and hazardous atmospheres pose dangerous risks to workers. Employers must provide the equipment and safeguards that prevent workers from getting hurt."

Investigators from OSHA's Syracuse Area Office found that both employers failed to ensure safeguards and to train workers on the hazards associated with methane gas and confined spaces. Workers were not provided with a meter to measure the presence of combustible gas.

The confined space also lacked adequate ventilation and a retrieval system for swift exits in an emergency. Hubbard Construction was also cited for ladder misuse and for using electrical equipment that had not been rated safe in a hazardous atmosphere.

As a result, Joy Process Mechanical was issued three serious citations with $14,700 in proposed fines. Hubbard Construction was issued seven serious citations with $31,020 in fines. A serious violation occurs when there is substantial probability that death or serious physical harm could result from a hazard about which the employer knew or should have known.

Under the Occupational Safety and Health Act of 1970, employers are responsible for providing safe and healthful workplaces for their employees. OSHA's role is to ensure these conditions for America's working men and women by setting and enforcing standards, and providing training, education and assistance.

Source: OSHA

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Safety overhaul for chemical plants under review

Chemical accidents have fuelled the need
for better mandatory safeguards.

An interagency panel created to weigh new chemical safety regulations in response to last April’s deadly explosion in Texas is considering a major overhaul of the way volatile substances are handled and stored, a new federal document shows.

The Chemical Facility Safety and Security Working Group, a task force made up of top-level officials from a variety of federal agencies, is asking for feedback on an array of potential new rules that could help avert future disasters.

The agencies offer nine sets of options across several categories, including mandatory — rather than voluntary — new safeguards. The regulations could include a shift to inherently safer technologies and the creation of a third-party audit system.

The working group, led by the secretaries of Homeland Security and Labor, along with the administrator of the Environmental Protection Agency (EPA), stressed that the list of potential actions, released late Friday, is merely a starting point.

“This document is a tool for prompting additional thought and obtaining additional information necessary to further evaluate, refine, and supplement these initial options, and we anticipate that the options may change significantly in the coming months,” the agencies wrote.

Included in the proposal are measures to tighten regulations for the storage and handling of ammonium nitrate, the chemical involved in last April’s fertilizer plant in West, Texas, which killed 15 people and injured more than 200.

The agencies are seeking information about the costs associated with implementing the measures under consideration.

Still, the proposal raised red flags within the industry, where businesses fear the working group will pursue actions “that will further complicate an overly complex regulatory system,” according to a statement from the American Chemistry Council (ACC).

The council said it was encouraged that the agencies incorporated some of the industry’s suggestions in the report, including measures to strengthen coordination between various regulators and improve information sharing between first responders.

But the ACC, which favors shoring up existing rules, is worried that the agencies are considering “a regulatory model that would exceed the authority the agencies have today instead of focusing on how to improve current programs,” according to the statement.

More than 100 groups making up the Coalition to Prevent Chemical Disasters contend that a transition from reactive safeguards to a more preventive set of policies is exactly what is needed to prevent future accidents, or at least minimize their impact.

The group is encouraged by the breadth and scope of the potential actions under consideration, including the incorporation of “inherently safer technologies,” said Rick Hind, who serves as legislative director for Greenpeace, a member of the coalition.

“They’re actually taking a look at the regulatory gaps,” Hind said.

Members of the public and interested parties can weigh in on the potential actions being floated.

President Obama created the working group via executive order on Aug. 1, though the panel's work has been fraught with delays connected to last fall's government shutdown.

Source: The Hill

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BC Sawmills inspected for explosive dust buildup

Third inspection since Babine Forest Products worker fatalities

Sawmill workers can be exposed to high levels of dust
and occupational health and safety risks.

Inspectors are heading back to 150 British Columbia sawmills over the next three months to ensure the operations are doing everything possible to reduce the buildup of potentially explosive wood dust.

WorkSafeBC said that a team of 10 officers will inspect the mills between Nov. 1 and Jan. 31, as part of a drive to reduce dust levels aggravated by the processing of pine beetle-killed timber.

"We've been into these mills before a number of times and we just want to ensure that the progress we've seen in the mills to address dust continues, and the compliance with wood-dust management really is being sustained,'' said Al Johnson, vice-president of prevention services at WorkSafeBC.

This is the third white-glove inspection for the mills since dust accumulation was implicated in an explosion and fire that killed 45-year-old Robert Luggie and 42-year-old Carl Charlie at the Babine Forest Products operation in Burns Lake on Jan. 20, 2012. The blast leveled the mill and injured 20 other people.

An investigation conducted by WorkSafeBC concluded that dry wood dust, which had accumulated from pine beetle-killed wood, fueled an explosion ignited by machine parts.

A second fatal mill explosion occurred in April 2012 at the Lakeland Mills in Prince George. Two workers, Alan Little and Glenn Roche, died in the fiery blast.

The cause of that disaster hasn't been revealed by investigators, as WorkSafeBC has asked the Crown to review whether the companies or any individuals could be charged for violations of the Workers Compensation Act.

The organization's officers have carried out more than 1,000 inspections of sawmills and other wood processing operations since the combustible dust safety initiative began in late April 2012.

Johnson noted all sawmills in B.C. complied with an order to cut buildup, and he said the upcoming round of checks will also focus on preventative maintenance of equipment and machinery, and dust control.

"We want to make sure that those dust collection systems, where they're removing dust mechanically and then transferring it through piping into a collection system, we want to make sure that those systems are working as they should,'' he said.

The inspection protocol will also be slightly different this time, as the inspection period is shorter and the team is smaller, said Johnson.

Oregon-based Hampton Affiliates Ltd. is rebuilding the Burns Lake sawmill, which is expected to reopen in 2014. Reconstruction of Lakeland Mills began in the summer.


Source: OHS Canada

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Wood dust can explode in dry or wet state: Report

B.C. sawmill study makes surprise finding on using moisture to prevent deadly explosions

Wet wood dust is just as explosive as
dry wood dust, a report shows. 

The smallest-sized wet wood dust is just as explosive as dry wood dust from B.C. Interior sawmills, according to a report prepared by FPInnovations for the provincial sawmill sector.

The finding raises questions about the usefulness of misting at sawmills. It was part of a first-of-its-kind study in British Columbia ordered after a pair of deadly sawmill explosions in the province last year that killed four workers.

“It was assumed moisture would be a bigger factor,” said Darrell Wong, one of the report’s authors. He is a manager of FPInnovations, the non-profit forestry research centre at the University of B.C.

But Wong said more study must be done before sawmills should consider jettisoning misting systems. Misting systems have a secondary function of knocking wood dust out of the air.

Wood dust suspended in the air was confirmed as the fuel source for the two explosions by WorksafeBC, the province’s chief workplace safety agency.

As part of the new study, hundreds of dust samples from 18 sawmills were analyzed, with some samples sent to Chilworth Technologies, a lab in Princeton, N.J. that determines how explosive substances are.

The report has been made widely available through forest industry associations and the United Steelworkers, which helped fund the study. WorkSafeBC is also helping to distribute the report.

The study also found there is not much difference among the explosiveness of various types of wood dust of timber, including type of wood (spruce, pine, fir, Douglas fir or cedar) and timber killed by the mountain pine beetle. That suggests timber killed by the beetle has not had its properties changed to make it more explosive, said the report.

But the report said the milling of beetle-killed pine may create more dust or dust that is easier to raise into a cloud than other woods. Among the factors needed to create a dust explosion is fine particles suspended in the air.

FPInnovations applied two criteria to determine which areas in the sawmills were at greater risk of an explosive hazard: the accumulation of wood dust at a rate of greater than one eighth of an inch in an eight-hour shift and samples that have more than 40 per cent of particles that were 425 micrometres (just under half a millimetre) or less in size.

Just 20 wood dust samples met those criteria, with 14 of those from mills that were processing beetle-killed timber. A majority of these samples were collected from under or near conveyors and in basements.

A sawmill explosion at Babine Forest Products near Burns Lake on Jan. 20, 2012 killed two workers. An explosion at Lakeland Mills in Prince George on April 23, 2013, killed another two workers. Dozens more workers were injured in the two explosions and fires.

This article was edited for length. Source: The Vancouver Sun

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Wood dust is not only an explosive hazard, it can also affect the health and well-being of workers, especially over the long term.

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Safety awareness program for combustible dust

OHS Canada recently distributed the news that Aurora Pictures has recently released two new safety awareness programs, Combustible Dust Awareness and Ladder Safety.

Combustible dust hazards exist in a wide variety of industries: grain handling, food processing, plastics, wood and paper products, textiles, pharmaceuticals, and metal fabrication, among many others.

In fact, over 130 products or materials have been identified that can present combustible dust hazards. Many facilities that have processes that produce dust or fine particles may be at risk for a dust explosion.

The 8-minute video provides a general awareness of how combustible dust explosions are caused and what you can do to recognize and mitigate the possible hazards before it’s too late.  It includes a detailed explanation of what combustible dust is and what makes dust such a highly combustible fuel source.

The other program concerns ladders, a common fixture both at work and at home. But statistics show that falls from ladders result in 300 deaths and 165,000 injuries yearly and that falls from a short height can result in serious injuries.

A 17-minute video details all of the hazards of working on a ladder. It discusses how to select the right ladder for the job, inspecting the ladder before use, how to transport and set up a ladder, working safely on ladders and ascending and descending ladders safely. For those who work with ladders, this video will give you all the information you need to ensure you and your employees are working safely.

Both of the programs are available in DVD and streaming media formats. Additional information or free preview is available by calling Electrolab Training Systems at 1-800-267-7482 or emailing safety@electrolab.ca.

Source: OHS Canada

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Sawmills ordered to control dust after deadly explosions

Sawmills have to do more to
protect workers from sawdust,
regulators say.

After two recent mill explosions in Canada’s British Columbia, sawmills must remove all accumulated sawdust from their premises

High levels of sawdust in sawmills have proven to be unpredictable occupational health risks.

This week, a devastating blast destroyed a sawmill in Prince George, killing two workers and wounding many others. In January, a sawmill exploded in Burns Lake, also claiming two victims.

The dust has been cited in reports before as a major concern, and now authorities are making it official that mills have to control the dust in their operations and clear it away on equipment and the ambient air.

The air in sawmills should be well ventilated and the sawdust removed from all species and types of wood, officials said.

Potentially dangerous conditions could put workers at other mills at risk.

Source: Globe and Mail

Sawdust also a respiratory risk

It’s not only explosions sawmill workers have to worry about – they could also risk their health by breathing in high levels of dust over a long time.

Extensive dust exposure can lead to cancer of the lungs, throat and nose as well as other lung conditions like COPD (Chronic Obstructive Pulmonary Disorder) that involves chronic bronchitis and emphysema, studies have shown.

Doctors say that woodworkers face 70 to 80 times the risk of a particular for of nasal cancer, which may develop decades after exposure to wood dust. Many other woodworkers report developing asthma as a result of their exposure to wood dust.

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In sawmills, woodshops and other high-dust environments, an industrial-strength air filtration system designed to handle a lot of fine dust can help reduce risks and provide cleaner air.

With a special bag filter option designed for large particle filtration, Electrocorp products such as the Dirty Dog or the I-6500 with Cyclone attachment are well equipped to work in environments with heavy sawdust or drywall dust.

The bag filters are easy to clean and reusable. This is an excellent option for situations where a HEPA filter would become blocked too quickly to be effective.

Contact Electrocorp for more information.
 

Vapor intrusion: Danger seeping out of forgotten wells

Vapors can enter homes that were built
on or around old wells.

The search for oil and gas prompted prospectors and energy companies to drill as many as 12 million holes across the U.S. in the last 150 years. Many were plugged after they dried up, but hundreds of thousands were simply abandoned and forgotten.

Government reports have warned for decades that abandoned wells can provide pathways for oil, gas or brine-laden water to contaminate groundwater supplies or to travel up to the surface, according to a recent ProPublica article.

New wells sometimes disturb layers of rock and dirt near fragile old wells, leading to new cases of contamination. For Pennsylvania and other states sitting on top of the Marcellus Shale formation, the rapid growth of gas drilling may increase the danger of such contamination.

 
Vapor intrusion can lead to explosions in homes

In 2008, gas from an abandoned well leaked into a septic system in Pennsylvania and exploded when someone tried to light a candle in a bathroom, killing the person, according to a 2009 draft report by the state Department of Environmental Protection.

That report also documented at least two dozen other cases of gas seeping from old wells, including three where the drilling of new wells "communicated" with old wells, leaking gas into water supplies and forcing the evacuation of a home.

In February, methane from an old well made its way into the basement of a house in West Mifflin, triggering a small explosion. Two families had to be evacuated.

Such incidents rarely receive much attention outside the states and neighborhoods they affect. But as the nation's latest drilling boom continues, abandoned wells have begun attracting more attention, particularly in states where the earth is already pock-marked with holes left by earlier waves of extraction.

The task of finding, plugging and monitoring old wells is daunting to cash-strapped state governments. A shallow well in good condition can sometimes be plugged with cement for a few thousand dollars. But costs typically run into the tens of thousands, and a price tag of $100,000 or more isn't unusual.

Some regulators fear that the number of abandoned wells will grow when the current drilling boom runs its course. To prevent that, states require energy companies to post bonds before they begin building their wells. But they are often so low that it can be more economical for a company to forfeit its bond rather than plug its wells. In Pennsylvania, for instance, an energy company can cover hundreds of wells with a single $25,000 bond.

 
Birthplace of an industry

One of Pennsylvania's worst cases of gas migration occurred in Versailles. From 1919 through 1921, more than 175 gas wells were drilled in the town. Residents put wells in their back yards to heat their homes, packing them into the 25-by-100-foot lots.

The boom dried up when most of the wells proved unproductive. But in the 1960s, pockets of gas began leaking into homes. Some houses were condemned and demolished, and Versailles became a case study for federal scientists trying to locate old wells.

Some of the old wells were plugged. But more often, vents were installed to direct gas away from the homes. Today, dozens of pipes pop out of the ground in yards, behind garages and through houses, slowly leaking methane and hydrogen sulfide so the explosive gases don't accumulate. In 2009, Versailles received a $368,600 federal grant to maintain its aging vents. About 50 methane alarms have been installed in the town.

Nobody knows how much damage abandoned wells have caused in the United States over the years. Most states don't systematically track cases of contamination that result from abandoned wells, said Mike Nickolaus, special projects director for the Ground Water Protection Council, an association of state groundwater agencies.

Some regulators are concerned that fracking, which is used in most new wells, increases the possibility that old wells will be damaged or disturbed. The process injects water, sand and chemicals into wells at high pressure to release oil or gas. But by disrupting the earth it can also push gas and other contaminants into openings created by old wells.

Source: Nicholas Kusnetz, Pittsburgh Post-Gazette. Editor’s note: This article has been edited for length.


Portable air cleaners – a cost-effective solution for VI in homes

Electrocorp’s small footprint, high-performance air filtration systems become efficient mitigation allies for challenging vapor intrusion and soil remediation projects that involve single- or two-family dwellings.

We work with environmental consultants, consulting firms, government and environmental agencies and companies to provide industrial-strength air filtration solutions that safely remove chemicals, gases, vapors, fumes and odors in indoor environments.

Our units can be configured with negative and positive pressure and with custom carbon blends to target specific airborne chemicals and vapors. Our engineers and air quality experts are standing by to provide you with a customized air filtration system that works.

Contact us today for more information.

The right training reduces deadly mistakes in dangerous jobs

Workers who may encounter hazardous events such as fires, explosions and toxic chemicals benefit from hands-on safety training to avoid making deadly mistakes, researchers say.

According to an article published by ScienceDaily, psychologists have interpreted more than 40 years of data, including results from 113 safety training studies to see how training affected safe work behavior.

For the most dangerous jobs, interactive training sessions such as simulation, behavioral modeling and hands-on learning proved to be more effective than less engaging training methods, which included lectures, films, reading materials and videos.  The latter still remained valuable training tools for less dangerous jobs, however.

The study’s lead author Michael Burke, PhD, of Tulane University, said that more interactive training showed better results when it came to instilling the dread factor and teaching workers effectively about possible dangers and awareness. In other words, interactive training is better suited to create a sense of dread in workers, make them realize the danger they could be in and let them proceed with care.


Reduce dangers with comprehensive safety measures

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Activated carbon is the most adsorbent material
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Protect yourself from explosive chemicals

Minimize risks when working with chemicals.

Remember the chemical disaster in Bophal, India, in the 1980s or the 2008 Bayer CropScience explosion in the U.S.?
For industries and laboratories that handle toxic chemicals, there is a constant threat of dangerous developments and near-accidents.
The National Academies Press says that “prudent execution of experiments requires not only sound judgment and an accurate assessment of the risks involved in laboratory work, but also the selection of appropriate work practices to reduce risk and protect the health and safety of the laboratory workers as well as the public and the environment.”

Be extra careful when dealing with chemicals
They outline four fundamental principles that all laboratory workers dealing with chemicals should keep in mind:

• Plan ahead. Determine the potential hazards associated with an experiment before beginning it.
• Minimize exposure to chemicals. Do not allow laboratory chemicals to come in contact with skin. Use laboratory hoods and other ventilation devices to prevent exposure to airborne substances whenever possible.
• Do not underestimate risks. Assume that any mixture of chemicals will be more toxic than its most toxic component. Treat all new compounds and substances of unknown toxicity as toxic substances.
• Be prepared for accidents. Before beginning an experiment, know what specific action to take in the event of the accidental release of any hazardous substance. Know the location of all safety equipment and the nearest fire alarm and telephone, and know what telephone numbers to call and whom to notify in the event of an emergency. Be prepared to provide basic emergency treatment. Keep your co-workers informed of your activities so that they can respond appropriately.

I-6500 series

Electrocorp has developed a range of air purifiers for laboratory workers, including the RAP series, the RSU series, the I-6500 series and Fume Hoods. Where high concentrations of flammable vapors (according to the MSDS) pose a threat of ignition, the I-6500 Explosion Proof promises to keep things safe.  It removes the toxic chemicals from the air and comes with explosion proof motor and switch, an after-filter housing, special carbon blends and particle filtration. The unit must be hard-wired by a certified electrician.