DON’T SIMPLY DUST OFF THE DANGERS OF LEAD AND ASBESTOS
Monday, August 30th, 2010It’s hard to believe that the dangers of asbestos and lead weren’t known until fairly recently.
Over 3 000 products contained asbestos, including ceiling tiles, air conditioning ducts, floors and brickwork, as well as being used as a spray insulator to help sound proof and fireproof buildings. And up until the 70s, lead-based paint was used in many buildings. People who are renovating their older homes are at greater risk because they can unwittingly expose themselves to asbestos or lead-dust which is a very real health hazard.
There are very real health risks associated with exposure to lead dust and asbestos. Not everyone who is exposed to asbestos will go on to develop an asbestos-related disease, but once it is in your body, it stays there. The risk of developing related diseases is cumulative ie. the more times you are exposed, the greater the risk – so if you think you may be at risk, have your property inspected by professionals and take the proper precautions when cleaning up lead or asbestos dust.
Governments around the world have put in place measures to control the amount of lead or asbestos going into the environment. The guidelines may vary between countries and states, so it is best to consult professionals who know the local recommendations.
With regards to lead dust, it is generally only a problem when lead-based paint is damaged, chipped, burnt etc. When people renovate these older buildings or even just do small home repairs or routine maintenance, they are at real risk of exposure to potentially lethal lead dust. Even tiny amounts of lead dust are dangerous. Under no circumstances should lead-based paint be scraped, burnt, dry sanded or handled with a power tools – the tiny particles of dust can get everywhere and be extremely difficult to remove.
Removal of lead dust or asbestos dust should be done by specialists using specialized equipment for hazardous dust removal. An ordinary domestic vacuum cleaner is not suitable.
An ordinary household machine will simply put very fine dust back into the atmosphere. They tend to pick up larger particles of matter, whilst the fine hazardous dust particles are simply blown back out of the machine’s exhaust where they resettle and become a danger.
The right equipment is a HEPA machine. HEPA stands for High Efficiency Particulate Arrestor and is able to suck up even the tiniest dust particles. These vacuums are more pricey than ordinary vacuums for a reason. They can trap particles that cannot be seen by the naked eye – that are almost invisible. A HEPA vacuum has a filter than can remove over 99.9% of particulates that are 0.3 microns or bigger – whereas a regular vacuum can only removes particulates bigger than around 35 microns. To make it easier to understand sizes, consider that a human hair is around 70/80 microns and asbestos fibre is between 3 – 20 microns..
So if you think you may be at risk, before starting any renovations or repairs, ask the specialists. After all, your health is paramount. For both domestic and industrial use, hazardous dust machines for lead or asbestos removal should ideally be operated by qualified personnel who have been trained in the area of hazardous dust extraction.






