An introduction to particulates
As strange as this question may sound…have you ever taken a moment to sit down and think about dust? Really think about it? Think about what it actually is, where it comes from, why it exists, and the impact it might have on our lives?
Probably not. And why would anyone? It’s just ‘there’ after all, hanging around, doing its thing. A staple accompaniment to life, only momentarily revealed in a shaft of sunlight or a sneeze, or lying on an expensive piece of machinery waiting to be…dusted.
And while we’re all aware that exposure to dust or particulates can impact health, isn’t it the case that because dust is so small, so ephemeral, and so everywhere, questions of what it actually is, and what it really does, tend to get swept under the carpet?
So here’s a chance to take a closer look at what we’re dealing with when we refer to ‘dust’ and reflect on the significant health implications of exposure to something largely unseen that threatens the lives of many thousands of workers, in many hundreds of different industries around the world.
What is ‘dust’?
Dust, or for the purposes of this explanation, particulate matter, is, defined by Greenfacts as, ‘the sum of all solid and liquid particles suspended in air.’
A complex range of components including organic and inorganic particles, such as pollen, soot, smoke, and liquid droplets, particulates can vary greatly in size (from coarse, to fine, to ultrafine), in composition, and in origin.
Many types of particulate are considered hazardous.
What causes particulates and how big are they?
Putting dust in the home (composed of about 20–50% dead skin) to one side, about a third of the particulates that make up air pollution are created by vehicles, exhaust fumes, and particles from tyres and brakes.
These coarse particles are made up of broken-up larger particles, with a size ranging from 2.5 to 10 µm (a micron is a millionth of a meter). They are also released by agricultural processes, mining, and burning fossil fuels, as well as naturally through pollen, mould spores, and plants and insects.
While industry and the burning of fossil fuels can produce particles from the release of non-combustible materials, other fine sub-micron particles are produced by the condensation of vapourised materials and atmospheric reactions of sulphur oxides and nitrogen oxides initially released as gases.
These fine particulates between 0.1 µm to 2.5 µm, make up most of the airborne particulate mass and represent the main danger to people living or working in a polluted environment.
Ultra fine particles which are smaller than 0.1 µm make up only a few percent of total particulate mass, though they represent over 90% of the number of particles. They’re largely formed from gases that will often end up coagulating to form a larger particulate.
The impacts on health
Worldwide, the main cause of air pollution is coal burning, with dirty air killing more people than smoking, car crashes and HIV/Aids. It also shortens billions of people’s lives by up to six years according to a new report.
The climate crisis too, largely a product of burning fossil fuels, is now making a significant contribution to air pollution through wildfires.
But that doesn’t mean the dangers of inhaling dangerous particulates are limited to smoggy city life or pollution blown cross country from burning forests.
At Trolex, our mission is focused on protecting the millions of people exposed to dangerous workplace dust, mist, fumes, vapour or gas – particulate threats that cover the full spectrum of particulate size.
As we wrote in our The importance of reading the room ebook:
‘Potentially lethal dust is everywhere – from construction dust, to the fibreglass/Glass Reinforced Plastics (GRP) used in loft insulation, and 3D printing that fuses layers and layers of extremely fine dust to create the final shape.
There’s coffee dust, soldering fumes (20% of people soldering or working around solder develop asthma), carbon fibre and plaster related lime, sulphate hemihydrates, silica, and mica dust that leads to asthma, COPD, chronic bronchitis, and emphysema.
There’s cement dust, plus the ubiquitous Amorphous Silica used in car tires, agri chemicals and animal feed, in toothpaste and cosmetics, paint, insulation materials, adhesives, coatings, and printer ink.
There’s biomass dust, dust created by waste disposal and recycling, sawmill wood dust, dust in nail bars, chiropodists, and podiatry clinics, tool sharpening dust and MDF dust particles coated in formaldehyde.’
Protecting people from the dangers of dust and particulate inhalation
There’s a huge amount that can be done to protect people from the dangers of inhaling dangerous particulates.
On a national level, governments can actually back up the rhetoric with action, instead of just paying lip service to environmental protection. China’s “war against pollution” that started in 2013 has already, supposedly, reduced levels of fossil fuel pollution by 29%.
But clearly much more needs to be done by politicians and business leaders to transition industry to greener, less damaging energy and manufacturing production. To promote production methods which will reduce the creation of hazardous dust.
We all have a part to play
Which is why we’re working so hard to both raise awareness of the problem and to put our Trolex XD One Personal Dust Monitor in the hands of people on the frontline who we can help protect.
With 12,000 UK, and half a million workers around the world dying every year from preventable diseases directly related to dust and particulate inhalation, our mission is as simple as it’s singularly focused, as it’s important.
It’s this: To educate the world’s construction, mining, tunnelling, heavy and manufacturing industries on the dust and particulate dangers their workers face. Then to make clear the smart, simple, cost effective ways our XD One and other duct monitoring technology can help them protect them. And ultimately…
For every worker exposed to dangerous particulates to have wearable personal dust monitoring equipment by 2031.