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JohnW  
#1 Posted : 01 May 2015 10:43:45(UTC)
Rank: Super forum user
JohnW

As a consultant my newest client has taken me into a new industry sector, meat packing. The factory received headless carcases from abattoirs, not much blood about, the factory is very modern and 'clean' (gets cleaned down well), skilled butchers, manual handling is minimised, the employees keep active working in temperatures below 10 degC. So far the hazards that have mainly attracted my attention are slippy floors, access to freezer rooms not controlled/monitored, and sawing carcases. Actually there is not much sawing, they mainly use bandsaws and operators are doing so safely. But there is a circular saw that hangs at head height, and is oriented so that the blade is horizontal. It's not used continually. But when it is used bone and flesh are 'atomised' (for want of a better word) at head height. Nobody wears a mask/rpe. What are the hazards of inhaling bone/flesh/blood?
A Kurdziel  
#2 Posted : 01 May 2015 11:25:42(UTC)
Rank: Super forum user
A Kurdziel

Rather than the bone/blood I’d be more worried about the exposure to biological agents. You can assume that any meat, no matter how clean has some microbiological contamination which might pose a risk. The problem is that this risk is difficult to quantify: you won’t know (and it would be difficult to find out) what organisms are present and what actual risk they pose. It is not just a respiratory risk but a general hygiene risk, as well, with the splatter being deposited on surfaces including the operative themselves. It is hard to judge what the risk from the splatter might be as some microorganisms can remain hazardous for ages and other die very quickly once they have dried out. As precaution I’d think about some sort of respiratory protection as least while using this circular saw. I am not sure if this this can be controlled by the use of LEV. You have raised good point but I don’t think that there is a categorical answer.
JohnW  
#3 Posted : 01 May 2015 11:47:30(UTC)
Rank: Super forum user
JohnW

Thanks A Kurdziel. As I thought, it's going to be difficult to know what the hazards are, but yes it just seems an unsafe process without any respiratory protection. The microbiological contamination subject is where I am struggling. In fact lack of general ventilation is likely a hazard to everyone in the butchery/processing area. They keep the processing area (20 people) at just above 5degC but there seems to be no fresh air input other than the opening of doors to other parts of the factory. Having a general ventilation system would cost them energy..... So there are issues for The Workplace Regulations, regulation 5, as well as COSHH and HaSaWA of course.
xRockape  
#4 Posted : 01 May 2015 12:01:41(UTC)
Rank: Forum user
xRockape

How is the saw guarded?
JohnW  
#5 Posted : 01 May 2015 12:42:48(UTC)
Rank: Super forum user
JohnW

xRockape, The blade looks about 50% guarded. It's above head height, one hand on the handle/button, the other hand is much lower down holding the carcase steady. Only watched the process once this week. I think the saw is cutting a bone that sometimes doesn't get pulled out by the machine process that all carcases undergo. Hanging this carcase on a hook is one of the few manual handling tasks, but it's not a frequent task, not all carcases need this sawing.
A Kurdziel  
#6 Posted : 01 May 2015 14:16:34(UTC)
Rank: Super forum user
A Kurdziel

Hi This gets really depressing. I was concerned about bacterial risks in meat process plants and I have just come across this article http://www.researchgate....packing_plants_An_update Which indicate that there might be a risk from viruses carried on carcasses which I hadn’t even thought about. RPE looking even more important. See https://www.osha.gov/SLT...g/hazards_solutions.html for more.
JohnW  
#7 Posted : 01 May 2015 17:46:50(UTC)
Rank: Super forum user
JohnW

Thanks A Kurdziel, I'll check those sites when I get to my PC
pete48  
#8 Posted : 01 May 2015 18:11:41(UTC)
Rank: Super forum user
pete48

You are probably aware of this site. http://www.bmpa.uk.com/Content/guidance.aspx?g=51 Doesn't answer your specific question but might give you some pointers by default?
JohnW  
#9 Posted : 08 May 2015 19:01:08(UTC)
Rank: Super forum user
JohnW

A Kurdziel, the US reports are possibly alarming but it's hardly appropriate to bring them to the attention of my client, I would need some acknowledgement of those or other studies in UK/HSE. Pete, yes I soon obtained a copy of the BMPA guidance, a good reference that my client should know about, we'll see. It will be good to have more than just HSE references in reports. For first time in many years I've been down and out for a week with the flu, doc wouldn't prescribe antibiotics, and I'm realising now that at my >60 age it's going to take me longer to recover from such things. Mrs W blames the visit to the meat-packing factory :o)
johnmurray  
#10 Posted : 09 May 2015 10:38:59(UTC)
Rank: Super forum user
johnmurray

¨Creutzfeldt-Jakob disease (CJD) Background Information CJD is a very rare, fatal neurodegenerative disease, which is thought to be caused by the build up of an abnorm al form of the na turally occurring ‘prion’ protein in the brain. There are four types of CJD (variant, spor adic, inherited and iatrogenic), of which only variant CJD (vCJD) is an occupationally acquired disease. CJD belongs to a group of Transmissible Spongiform Encephalopa thies (TSEs) which affect humans and animals. Organism: Bovine Spongiform Encephalopathy (BSE) agent Incidence and Transmission: The first reported case of vCJD was in 1996 and since then there have been alm ost 200 deaths in the UK. vCJD is strongly linked to exposure to – and in particular consumption of – beef or beef products from cattle suffering from BSE or ‘mad cow disease’. The first reported case of BSE in cattle in the UK was in 1986. BSE was spread via feed made from rendered material from infected cattle or sheep, a process which has been banned since 1988. There has never been a reported case of disease following occupational exposure (despite more than 184 600 cases in cattle in the UK), however it remains a theoretical risk. It is thought the most likely route of occupational infection would be via broken skin and it is thought unlikely that the di sease would be transmitted via aerosols. There is no evidence of spread from person to person, but this remains theoretically possible. Occupations and processes where vCJD may present a risk Occupational exposure to vCJD may occur in those who:  are in contact with infected animals; or  work with materials or products from in fected animals, in particular brain, spinal cord and lymphatic tissue http://www.hse.gov.uk/ag...oses-data-sheets/cjd.pdf http://www.nhs.uk/Condit.../Pages/Introduction.aspx http://www.patient.co.uk...irosis-and-weils-disease https://www.gov.uk/gover...ist-of-zoonotic-diseases
JohnW  
#11 Posted : 10 May 2015 15:33:51(UTC)
Rank: Super forum user
JohnW

Thanks JohnM. Yes I recall the BSE/vCJD outbreak. The carcasses here have no head or organs, so no brain and no lymphatic tissue, spinal column is there but not in the saw work. There's a process that pulls the carcass apart.
johnmurray  
#12 Posted : 11 May 2015 06:50:48(UTC)
Rank: Super forum user
johnmurray

The lymphatic system exists in other areas besides the head, the head containing, obviously, less than the rest of the carcass.
JohnW  
#13 Posted : 11 May 2015 07:23:30(UTC)
Rank: Super forum user
JohnW

Yes, I said the carcasses have no organs with lymphatic tissue. John.
James Robinson  
#14 Posted : 11 May 2015 11:45:58(UTC)
Rank: Forum user
James Robinson

two aspects from what I can gather; 1) direct contact with the saw 2) contact with animal product coming off the saw. I'll leave the guarding to yourself, as hard to comment without seeing in situ. As far as the "spatter" goes I would think about using a full face visor. This would cover and protect both the eyes and mouth/nose etc. Small piece of bone in the eye hurts. Remember though that vision will be obscured fairly quickly, particularly with fat smearing, so may need to provide some wipes etc to clean nearby for operatives.
A Kurdziel  
#15 Posted : 11 May 2015 12:06:08(UTC)
Rank: Super forum user
A Kurdziel

JohnW I sent you the information: what you do with is upto you but remember that biological agents are no respecters of national boundaries: if (big if) it is a genuine problem in the US it will be an issue everywhere. Furthermore just because the HSE is silent on an issue does not mean that it is not an issue. It is the responsibility of the duty holder find out as much as they can from whatever reliable sources exist, not just HSE guidance. My previous employer got into trouble with the HSE over BSE. The HSE guidance at the time was vague, implying that the agent was in HG2(Hazard Group 2) but when, following an accident, the HSE investigated our set up they said that our classification was wrong and that we should have been managing the material as if it was HG3. They got a Crown Censure for that. The guidance was updated and BSE was reclassified as HG3 AFTER they got done.
JohnW  
#16 Posted : 11 May 2015 13:03:29(UTC)
Rank: Super forum user
JohnW

Kurdziel, yes of course I should take note of any publications on this subject and at least make client aware. Must learn from the BSE episode and what led to it. James, yes a full face visor seems appropriate, I'll have to observe further if Rpe needed
Ali Sooltan  
#17 Posted : 11 May 2015 13:56:12(UTC)
Rank: Forum user
Ali Sooltan

Quite interesting and somewhat amusing reading the posts here. I spent 6 months in an abattoir as part of my Environmental Health training. Before that I was a Meat Scientist and before that a Microbiologist. One thing I would say is beware what research papers you read. it easy to do research and produce a paper. This does not mean that every scientist agrees with it. Research needs to be consistent and reproducible to be meaningful. If the carcase is completely de-skinned and eviscerated, the main problems of contamination comes when they wash it (usually soft jet washing). this activity alone can produce 1000's of aerosols contaminated with bacteria - typically coliforms and enterobacteria, which can be pathogenic. face shields may be useful for macro particles, but not for microorganisms which would require a P3 filter as minimum. Viruses are a possibility, but not significant - remember the HSE want us to be "sensible & proportionate". Manual handling when handling carcases are important and also consider what if the saw gets blocked and fails? What safe system is there of unblocking it? Also consider electrical shocks from electrical equipment that may be poorly earthed. Consider Puwer and Electricity at Work. The environment is very wet ! There is a plenty to consider, but only at risk of boring you all sorry. For example have you considered what would happen if the animal wasn't stunned correctly? It could turn on people. I have seen this myself.
A Kurdziel  
#18 Posted : 11 May 2015 16:15:08(UTC)
Rank: Super forum user
A Kurdziel

…”Viruses are a possibility, but not significant…” How do you know viruses are not an issue? The problem with environmental microbiology is the tendency to focus attention on easy to culture organisms like the aforementioned enterobacteria and coliforms or even worse “indicator species”, which may(but may not) demonstrate the presence of really nasty bugs. The real problem with this is that we do not know what organisms are present on any carcass; we can only make an educated guess. Hopefully in the future using molecular techniques we might have a way to quickly scan for whatever is there but that is currently in the realm of the ‘Star Trek tricorder.’ So a risk might exist and so based on current knowledge some action needs to be taken with risk identified and managed. It could be as simple as using respirators, with a suitable protection factor, but you have to include it in the risk assessment.
JohnW  
#19 Posted : 11 May 2015 16:35:09(UTC)
Rank: Super forum user
JohnW

AS, as I said earlier, at this client the 'carcasses' have no head, no organs, no skin, very little blood. There is a lot of washing, splashing water, wet floors, in fact last two hours of every shift is washing down the facilities, conveyors etc
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