research – Page 60 – SafetyAtWorkBlog

New potential carcinogen and occupational asthma

There are two reports of concern in the next edition of the journal of Occupational and Environmental Medicine. One (Cancer risks in chemical production workers exposed to 2-mercaptobenzothiazole – Online First Occup Environ Med 2009; 10.1136/oem.2008.041400) raises the increasing likelihood that 2-mercaptobenzothiazole, or MBT, could be carcinogenic.

The article reports on a study of workers in a rubber chemicals plant in North Wales. It found that

“Based on national statistics for expected death rates, workers exposed to MBT were twice as likely to die of gut (large intestine) and bladder cancers.

Based on national statistics for expected new cases of cancer, they were also twice as likely to be diagnosed with bladder cancer, and four times as likely to be diagnosed with multiple myeloma (bone marrow cancer).”

The other article (Occupational exposures to asthma among nursing professionals Online First Occup Environ Med 2009; 10.1136/oem.2008.042382) is similarly worrying. Moreso because the chemical products mentioned in the report are well-known substances, such as latex gloves and gluteraldehyde, and control measures are very well established.

“…those who regularly cleaned instruments were 67% more likely to report a diagnosis of asthma since starting their job.

And nurses who were regularly exposed to general cleaning products and disinfectants were 72% more likely to say they had been newly diagnosed with asthma, and 57% more likely to report symptoms similar to asthma.

Those nurses working with solvents and glues used in patient care were also 51% more likely to say they had symptoms similar to asthma.”

In both these circumstances occupational health and safety has established control measures that can reduce the harm from these products. What they illustrate is that OHS professionals may apply a consistent standard of expectations that often strengthen as clients remain in one specific industrial demographic but workplaces, decades after hazards are known, have a highly variable level of safety and compliance. This sounds obvious but specialisation can lead to complacency in advisers as much as customers.

It is also useful to note that the carcinogen research was in North Wales and the asthma study in Texas. Both these countries have strong OHS legislation and a good amount of OHS resources but still unacceptable levels of occupational illness. It is this level of resource and attention that has provided the chance for these studies to be undertaken.

“The more we look, the more we find”

Kevin Jones

Evidence of horse racing risks

The Australian Medical Association (AMA) has commented on an article in the Medical Journal of Australia (MJA) entitled “The incidence of race-day jockey falls in Australia, 2002-2006”. The AMA summarises the report’s statistics

“Falls occurred at a rate of 0.42% in flat racing and 5.26% in jumps racing. Although most falls occurred pre- or post-race, falls occurring during the race resulted in the most severe injuries.”

However, the statistics, that can only be accessed fully by subscribers, should be looked at more closely in order to investigated the most appropriate control measures. It should be noted that the risks for horses is not part of the report.

The report finds

“There were 3360 jockey falls from 748 367 rides. Falls occurred at a rate of 0.42 per 100 rides in flat races and 5.26 per 100 rides in jumps races. In flat racing, 54.6% (1694/3101) of falls occurred before the start of the race and 11.1% (344/3101) of falls occurred post-race. The 34.3% (1063/3101) of falls that occurred during flat races resulted in 61.7% (516/836) of the injuries sustained. In jumps racing, most falls occurred at a jump and 9.7% (25/259) of jockeys who fell were transported to hospital and/or declared unfit to ride. There were five fatalities resulting from falls during the study period, all in flat racing. Fall and injury rates were comparable with those found in the United Kingdom, Ireland, France and Japan.”

The authors found that

“Being a jockey carries a substantial risk of injury and death. Although rates of injury in Australia are not exceptional by international standards, there can be improvement to safety standards in the Australian racing industry.”

Most reports end with statements that seem blatantly obvious but it is worth considering the findings that the five jockey fatalities were “all in flat racing”. These finding would question the strategy of some safety lobbyists who focus on jumps racing.

The available information says that 85% of falls resulted from the jockey being dislodged. More useful information would come from looking at the specific causes of the injuries – head trauma, shoulder injury, back… This information is not publicly available but is crucial in determining what type of PPE jockey’s should wear, if any. Much work is aimed at helmets and protective vests, and banning jumps racing with which the statistics from this report may assist.

WorkSafe Victoria’s guide on track safety mentions some track or barrier design changes. It would be useful to know what injuries resulted from jockeys falling on railings in order to verify the value of the redesign recommendations. Granted the WorkSafe recommendations don’t specifically address race day conditions but in terms of track design the situation is not relevant.

Specific information on jockey injuries in Victoria was reported to WorkSafe in 2006. The report found

67% of falls injuries recorded in the RVL [Racing Victoria Limited] data set are suffered by jockeys at race events;
33% of falls injuries recorded in the RVL data set are to licensed jockeys at track work;
43% of falls injuries recorded in the VWA [Victorian WorkCover Authority] data set are to track work riders (excluding licensed jockeys) at track work.

Control measures are recommended in the WorkSafe report, a report that was not referenced in the MJA article even though other work by one of the report’s authors, Steve Cowley, is mentioned.

All reports and investigations have their limitations and specific aims but it is disappointing that the MJA article was more interested in benchmarking than proposing safety solutions. The researcher’s aims for the MJA report was stated as

“… to determine the incidence of falls, injuries and fatalities occurring at race meetings in Australia, and to compare them with overseas rates.”

An opportunity was missed to provide some information on the safety changes that could reduce the injuries to, and fatalities of, jockeys.

Kevin Jones

Absence management survey results

On January 8 2009, the Mercer’s 2008 Pan-European Health & Benefit Report was released. It had some useful information about the causes of workplace absenteeism in Europe. The information was compiled in 2008 so is as current as can be but also occurred in a period of severe economic unrest.

As with all studies, the applicability to other nations and regions is up for debate but the data is a great starting point for discussion on managing these issues in workplaces.

According to the available report information

“Musculoskeletal conditions were identified by 78 percent of respondents as the cause of most long-term absences. Thirty-one percent specifically referenced lower back pain and 47 percent other musculoskeletal conditions. Stress and mental health issues (52 percent) and cancer conditions (20 percent) were also featured amongst the highest disability causes.”

By looking at policies and practices in the multi-jurisdictional structure of Europe, the demographic variations and management initiatives may be applicable elsewhere.

As Steve Clements of Mercer says

“Absence management remains haphazard at best. Targeted absence management policies and procedures are by no means universally applied, and even the ability to quickly and accurately measure absence remains fairly poor. Many employers offer a broad range of health-related benefits, but their presence is driven by recruitment and retention, and it appears there is only sporadic evidence of integration of these benefits within a broader employee health and wellness or absence management agenda. At a time when cost is under the microscope, employee absence remains under-managed and presents a great opportunity for savings and improved productivity.”

Kevin Jones

OHS as an agent of change

Tom Bramble is a Queensland socialist academic who recently published a history of Australian trade unionism. I attended his book launch in Melbourne and found it partly inspiring and partly disconcerting.

Tom (pictured here) was an excellent speaker and seemed to be a known entity to the strongly socialist audience. It was the audience that I found disconcerting. I had not been in so overtly socialist circles for over a decade and although disconcerted, the atmosphere was refreshing due to the level of passion in the speakers.

I regularly write about the industrial relations context of workplace safety so I was disappointed that Tom did not mention OHS as an agent of change. I went back to his book and looked for mentions of workplace safety knowing that there have been disputes over OHS in the trade union movement and often workplace fatalities have generated politic pressure and outrage.

There were some mentions of of safety or health conditions but these were often as an add-on to the more industrial issues such as wages. Perhaps this is where OHS should be but I can’t help thinking that safety and health can be important elements of emphasising the importance of a dispute by appealing to basic worker and human rights. One example in Tom’s book is the Mount Isa Mine dispute in 1964 where the state of amenities block was a source of tension. Given the devastating effect of asbestos, lead and other industrial illnesses, I expected health and safety to have a much higher profile.

Perhaps, my expectations were too high as I had been reading a history of the Queensland Fire Service where the safety and safety equipment were important elements and even motivators for disputation. Indeed, the issue of PPE in the emergency services remains a hot issue even in 2008.

Arguing for improved safety equipment is a useful example of OHS as an agent of change because of the direct relationship of PPE as a hazard control mechanism.

I don’t accept the position that firefighting is riskier than working in construction. Construction faces a constant presence of hazards whereas firefighting is highly intermittent even though the risks may be more intense.

Australian workplaces have a sad history of fatalities, falls, poisoning, suicides, amputations, crushings, runovers and drownings. Each of these issues have generated change in specific workplaces. Some have generated political, organisational and cultural change. It seems to me that a history of workplace safety in Australia may be needed to show people how the little brother of industrial relations affects change from an, arguably stronger moral position.

Kevin Jones

Office design hype risks

On 11 January 2009, John Read posted an article on office design. The first paragraph is below:

“Paying attention to office design and building maintenance are imperative parts to doing business that many company owners ignore. The layout of office interiors can have a deep consequence on the disposition and productivity of staff members and upper management. Providing a well-maintained office is crucial in reference to health and safety issues. Through the use of proper design and upkeep, offices are able to experience some amount of control over the contentment, welfare, and effectiveness of not only their staff members, but themselves also.”

My comment was posted this morning

“The refurbishment and redesign of offices can have a positive effect on the morale of workers if the environment becomes cheery, colourful and refreshing. However, companies often use refurbishment as a cover for more important cultural and organisational issues.

Successful businesses and happy staff come from active personnel management more than from the physical environment in which this occurs.

Companies should not be distracted from organisational issues by window dressing and office redesign is, usually, a low-priority matter that is more often than not, coordinated through an image consultant or brand marketing.

Another risk with office redesign is when the ergonomic, operational and communication needs are not considered at the design stage. In many instances, offices quickly become shabby because workers need to accommodate design deficiencies in order to achieve comfort and peak productivity – additional heating, more lighting, different seating, additional technologies…..

Plants have been advocated as a positive, and functional, presence in offices for decades however, windows that open to allow ventilation, have been around much longer. The environmental design of an office building should be considered before taking on a tenancy.

The definitive government guidance on office safety and design is OfficeWise by WorkSafe Victoria, which is available online.”

Australian electronic media today, and probably the newspapers tomorrow, have been reporting on a new literature study into office design undertaken by Dr Vinesh Oommen from the Queensland University of Technology (QUT) concerning open-plan office design.

A typical example of journalistic hyperbole with a “comical” photo can be found in The Queensland Times from an AAP story.

Dr Oommen is quoted as saying:

“In 90 per cent of the research, the outcome of working in an open-plan office was seen as negative, with open-plan offices causing high levels of stress, conflict, high blood pressure, and a high staff turnover.

The high level of noise causes employees to lose concentration, leading to low productivity, there are privacy issues because everyone can see what you are doing on the computer or hear what you are saying on the phone, and there is a feeling of insecurity.”

Dr Oommen has previously gained media attention with his research in children and junk food.

The media is going to run with this story, particularly now it has appearedon the AAP wires services. Yet we can’t access Dr Oommen’s study in the Asia-Pacific Journal of Health Management as the publication is only for members of the Australian College of Health Service Executives . Until then it is wise to consider the media’s interpretation of an unseen research article before making the decision to redesign your open-office into ripple glass and swinging doors.

To investigate whether your offices are an occupational hazard, you are recommended to remind yourself of the safe design guidelines or, as mentioned above, reread the latest version of OfficeWise, or its sister publication, StressWise.

Let others go off half-cocked while the safety practitioners deal with reality.

Kevin Jones

Eliminating hazards

In the aims of most of the Australian OHS legislation is

“to eliminate, at the source, risks to the health, safety and welfare of employees and other persons at work…”

I have written elsewhere on how this conflicts with the push for “reasonably practicable” but the need to remember this important aim was emphasised by a study undertaken by the Graduate School of Public Health and the School of Medicine at the University of Pittsburgh and published in the January 2009 issue of “Neuropsychology”, which is published by the American Psychological Association.

The researchers followed up on the 1982 Lead Occupational Study, which assessed the cognitive abilities of 288 lead-exposed and 181 non-exposed male workers in eastern Pennsylvania. It measured “five primary cognitive domains: psychomotor speed, spatial function, executive function, general intelligence, and learning and memory.”

According to the media statement, in the 2004 follow up study,

“Among the lead-exposed workers, men with higher cumulative lead had significantly lower cognitive scores. The clearest inverse relationships – when one went up, the other went down – emerged between cumulative lead and spatial ability, learning and memory, and overall cognitive score.

This linkage was more significant in the older lead-exposed men, of at least age 55. Their cognitive scores were significantly different from those of younger lead-exposed men even when the researchers controlled for current blood levels of lead. In other words, even when men no longer worked at the battery plants, their earlier prolonged exposure was enough to matter…”

“The men who built lead batteries were exposed to it in the air and through their skin. Other occupations, including semiconductor fabrication, ceramics, welding and soldering, and some construction work, also may expose workers. The authors wrote that, “Increased prevention measures in work environments will be necessary to reduce [lead exposure] to zero and decrease risk of cognitive decline.””

Lead has been identified as a major occupational hazard for a very long time and is a good example of how “reasonably practicable” is not always a reasonable solution. Lead paint products have been banned in many countries. Asbestos similarly so. The attitude that there are “safe” levels of exposure to some industrial products is not worth pursuing in most circumstances.

Safety is similar to medicine in that both aim to “do no harm”. If Hippocrates, or Galen, were alive today they would not say

“do no harm, as far as is reasonable practicable”.

That is not a belief that will establish a centuries-old profession and it should not be blindly accepted by the safety profession in the 21st century.

Kevin Jones

Political argy-bargy on level crossing safety

Earlier this week Queensland MP Tim Nicholls, of the Liberal-National coalition gave the Queensland Transport Minister, John Mickel, a serve over the $10 million program on level crossing safety by calling the response “window dressing”.

Nicholls seems more interested in political point-scoring than safety but he asks

“What has happened to all their much vaunted safety studies over the last decade. It’s about time this Government came clean and explained whether it would actually commit new funding, what ongoing rail safety programs, if any, it has and whether today’s announcement will mean money is redirected from other maintenance and safety programs.”

He points out that

“Railway level safety was included in the National Road Safety Action Plan in 2003 and the Australian Transport Council has previously described railway level crossing crashes as ‘one of the most serious safety issues faced by the rail system in Australia'”

Today, Shadow Transport Minister Fiona Simpson got the focus back to safety for political procrastination and funding arguments describing the Queensland Government’s staunch defence of its “risk model” for determining upgrades was “dangerous“.

The Transport Minister has responded with political bluster but within John Mickel’s bluster is some points worth noting.

“For example, she [Fiona Simpson] might want to familiarise herself with the research which shows that the overwhelming number of level crossing accidents are caused by road driver behaviour, and how more than half of the accidents happen at crossings where there are boom gates or flashing lights.”

Mickel goes on to say

“Under this [uniform national assessment] process a review of level crossing characteristics such as topography and visibility takes place, which is then combined with the volume of road and rail traffic. The assessed level of risk is then used to prioritise any work that needs to be done.

The approach developed by Queensland forms the basis of what is known as ALCAM – the Australian Level Crossing Assessment Model – which has now been accepted by all state Transport Ministers as the method to be used to evaluate railway level crossings across Australia.”

ALCAM is receiving a great deal of attention through the Victorian Parliamentary investigation into level crossing safety.

The need for uniform assessment processes is worthy but decisions on upgrading government infrastructure always considers the political imperatives, some would just, just as strongly as independent scientific advice.

Over decades workplace safety has developed assessment processes based on a range of techniques from plain observation to QRA, FEMA and many others. Only recently has OHS got to the point of realising that greater and longer-lasting safety can be achieved through designing workplaces safely from the beginning rather than trying to achieve safety through retrofitting. Recently in Australia, there is a growing movement to apply safety case techniques to workplaces that are not high-risk organisations.

Level crossing incidents, as do workplace fatalities, indicate that there was something not right with the initial design or that necessary safety improvements were permitted to lag behind the status and technology of the users of the facilities. The fact remains that there are too many unsafe level crossings in Australia and each fatality is generating a reactionary government response rather than instigating true leadership.

Tag: research

New potential carcinogen and occupational asthma

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Evidence of horse racing risks

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Absence management survey results

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OHS as an agent of change

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Office design hype risks

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Eliminating hazards

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Political argy-bargy on level crossing safety

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