What you need to know about dust 1 What is DUST Dust consists of particles broken up from solid materials Exposures to dusts are the 2 nd biggest killer in the construction industry In construction dusts are typically ID: 1034501
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1. The Construction Dust Partnership and Quarries Partnership TeamWhat you need to know about dust1
2. What is DUST ?Dust consists of particles broken up from solid materialsExposures to dusts are the 2nd biggest killer in the construction industryIn construction dusts are typically;Sand & concreteWood – including MDFGeneral dusts/Gypsum – PlasterboardConstruction Dust Partnership2
3. What is DUST?Dust is best defined by its size. The size of dust determines how your body can protect itself against itLarger dust is called inhalable dust. These can generally been seen by the naked eyeSmaller dust is called respirable dust. This dust can be invisible to the naked eyeConstruction Dust Partnership3"Airborne-particulate-size-chart" by Jisaac9 (Own work) - Licensed under Creative Commons Attribution 3.0 via Wikimedia Commons
4. How does dust get into the lungs?Construction Dust Partnership4Dust can enter your lungs via your nose or mouth, into the trachea and via bonchi ultimately reaching alveoli."Alveolus diagram" by LadyofHats - self-made(extracted from Image:Respiratory system complete.svg) Licensed under Public domain via Wikimedia Commons "Illu conducting passages" by Lord Akryl - http://cancer.gov. Licensed under Public domain via Wikimedia Commons
5. What is DUST?Larger (Inhalable) dustThese dusts can effect your upper lung (the nose, sinus, windpipe and bronchus)Smaller (Respirable) dustThese dusts are small enough to get into your bronchioles and the fragile alveoli.Inhalable DustRespirable DustConstruction Dust Partnership5
6. What is DUST ?Nose:Dust particles can get caught in your nasal cavity, leading to health problems such as nasal cancer from exposure to hardwood dusts.Mouth:Dusts in your mouth typically give a taste to the air – however these particles do not often give health problems as they are swallowed in small quantitiesConstruction Dust Partnership6Dusts caught in the sinuses and nose are removed by sneezing"Popel" by – Gohnarch, Licensed under Creative Commons Attribution-Share Alike 3.0 via Wikimedia Commons
7. What is DUST ?Upper Lung:Larger dust particles in the upper respiratory tract get caught in mucus lining the lungsThis mucus is transported up to the mouth to be coughed outThis is why snot and phlegm are often discoloured after exposure to dusts – it is a visual indication that your immune system is workingConstruction Dust Partnership7"2013 Woodstock 127 fala, crowd surfing" by Ralf Lotys (Sicherlich) - Own work. Licensed under Creative Commons Attribution 3.0 via Wikimedia Commons
8. What is DUST ?Lower Lung:Only the finest dust particles get to the bottom of your lungOnce here they cannot be removedThey either;remain stuck in the lung are broken down by the immune systemdevelop scar tissue causing pneumoconiosis diseases such as silicosis or asbestosiscause an allergic response which damages the lungConstruction Dust Partnership8"Bronchial anatomy" by Patrick J. Lynch, medical illustrator - Patrick J. Lynch, medical illustrator. Licensed under Creative Commons Attribution 2.5 via Wikimedia Commons
9. Routes of entry: Video
10. Silica is a common substance found all around us; Usually it is not a problem (sand on the beach);It can become a problem when it is processed and crushed during quarrying activities.The really hazardous dust is Respirable Crystaline Silica dust that can get deep into the lungs and lead to the respiratory disease Silicosis, a severely disabling lung disease.Silica dust
11. What can it do to me?Construction Dust Partnership11
12. What can DUST do to me ?Different dusts can have different effectsSand and ConcreteIrreparable long term lung damage called SilicosisWoodLung cancer and allergic reactions (sensitisation)Gypsum & General DustsA clogging up of your lungs known as Chronic Obstructive Pulmonary Disease (COPD)Construction Dust Partnership12
13. What can DUST do to me ?Chronic Obstructive Pulmonary DiseaseLung damage and inflammation which restricts your airwaysConstruction Dust Partnership13At its most basic it is a clogging up of your lungs with dust and other particulateDr. Edwin P. Ewing, Jr. - http://phil.cdc.gov/phil_images/20040517/4/865_lores.jpg
14. What can DUST do to me ?Lung SensitisationAn asthmatic reaction (breathlessness, wheezing, etc.) caused by an overreaction in the immune system following exposure to a sensitising dust.Once sensitised, very low levels of exposure can lead to a life threatening asthma attack, the condition is retained for life and the sensitised individual may become susceptible to other sensitising and none sensitising agentsConstruction Dust Partnership14"Misc pollen" by Dartmouth Electron Microscope Facility, Dartmouth College. Licensed under Public domain via Wikimedia Commons -
15. What can DUST do to me ?Silcosis Scarring and inflammation of your lungsThe more dust that is inhaled, the more the disease progressesFull recovery is unlikely once the disease manifests itselfConstruction Dust Partnership15"Delamar". Via Wikipedia - http://en.wikipedia.org/wiki/File:Delamar.jpg#mediaviewer/File:Delamar.jpg
16. What can DUST do to me ?Lung CancerMalignant tumour (uncontrolled cell growth) inside your lungsThe more dust inhaled, the more likely cancer will developIf a low amount of dust inhaled the risk of cancer occurring is lowConstruction Dust Partnership16"LungCACXR" by James Heilman, MD - Own work. Licensed under Creative Commons Attribution-Share Alike 3.0 via Wikimedia Commons
17. What can DUST do to me ?What does all this do to me?Typical symptoms of poor lung health are;Increased breathing rateWheezing or crackling from lungsShorter, shallower breathsIncreased tiredness Inability to exercise for even short periodsTreatment is very difficult, and full cures are unlikely.Regular or permanent use of oxygen cylinders is not uncommon to compensate for the reduced lung functionHOW WILL ALL OF THIS EFFECT YOUR HOME LIFE?Construction Dust Partnership17
18. What do exposures look like?Construction Dust Partnership18
19. The smaller dust is always thereDon’t let your eyes deceive you. The most hazardous dusts are those that you can’t see Picture taken under normal lightPicture taken under Tyndall lightingConstruction Dust Partnership19
20. The Construction Dust PartnershipWhat can I do about it?Construction Dust Partnership20
21. Silica exposureControl of silica dust…It is EESI…Suppress ItEncloseExtract
22. EESI…… EnclosePutting a barrier between you and the silica dust.Keep doors and windows closed;Keep cabs and control rooms clean;Vacuum regularlyChange air filters regularly
23. Removing the silica dust from the work areaEnsure the extraction doesn’t leak;Look out for a build up of spillage;If you see a problem report it.EESI…. Extract
24. Stopping the dust at source.Keep stockpiles, roadways and tipping or transfer points damp;If suppression is not working report itEESI…..Suppress It
25. Use a vacuumVClass H or M Don’t just go for one that says HEPA
26. Good hygieneSubstances can remain on your clothes, hands, face, hair etc Wear disposable coveralls;Always wash your hands prior to: Eating Drinking Smoking Leaving work
27. Controlling exposure
28. Respiratory protective equipment Use the correct type (Usually FFP3)It must be maintained, replaced and cleaned as needed;Face fit testing is required;Report any loss or defect;Only use disposable masks and gloves once then throw them awayOnly use CE marked masks Remember RPE is the last resort!
29. In summaryDusts have the potential to cause serious long term ill healthThey remain the 2nd biggest killer in the construction industryYou may be damaging yourself without realising itThe majority of diseases cannot be treated – you will have them for lifeYou can take control of your health and others around you. Do not create dust, use dust suppression methods, use your mask correctlyConstruction Dust Partnership29
30. ExposureEvery single exposure is importantEvery exposure increases the risk of developing respiratory diseaseEvery exposure must be prevented or reduced to as low as reasonably practicable (ALARP)The higher the dust levels the greater the risk;The longer the exposure periods the greater the risk; Combine both and the risk is even higher.
31. Any Questions?Construction Dust Partnership31