Indoor Air Contaminants – The 3 Most Commonly Overlooked

by | air fresheners, air pollution, building biology, buildings and health, environmental sensitivities, health, indoor air quality, indoor environmental health, perfumes, personal care products, VOCs

Indoor Air Contaminants – Discover Which 3 Are Most Commonly Overlooked

Indoor air contaminants are largely ignored – even though the indoor air can be up to 10 times more polluted than the outdoor air.

DID YOU KNOW..?

Air is one of our most basic needs, yet it is often not as clean as it should be.

When people think about air pollution, they usually think about traffic-related air pollution. “Smog.”

In early 2020, many Australians also considered smoke due to the horrendous fires that we started the year with.

This is all pretty much about outdoor air (ambient air).

However, very few people consider indoor air – contaminants, quality and so on.

When you consider your indoor air, what springs to your mind first?

  • Is it the bathroom, when someone has used the toilet?
  • Is it the rubbish bin?
  • Or maybe it is the gym bag full of sweat-laden clothes and shoes.

There are more indoor air contaminants that what readily spring to mind.

I made this short video to help you understand more about this topic, and also to shine a light on the three most overlooked ones.

 

I encourage you to read more about our indoor air. Here are some posts that may pique your interest:

If you'd like my advice, then book a call with me.

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Condensation: An Enormous Issue In Buildings

by | air pollution, building biology, buildings and health, condensation, indoor air quality, indoor environmental health, mold, mould, water, water damage

Condensation: an Enormous Issue in Buildings

Condensation is an enormous issues in buildings, whether they be older buildings with single glazed windows and/or no insulation OR brand new buildings that are built to be energy efficient.

“My Building Is New, There is No Mould”

So I am told by many people when they call about at assessment of their home.

“I have NO MOULD, Everything is Dry Now…“

Others tell me. And I even hear:

“There is No Mould in My House… but There is a Musty Smell”

Mmmmm.

<<Picture me rubbing my chin and nodding slowly>>

All three of these cases do not preclude the presence of mould. The other thing to remember is that you cannot always smell mould when it is present.

Here is a video I did to explain about buildings built to code:

So why are we talking about mould when we started with condensation?

Mould has very basic needs: food and moisture.

Food is everywhere. Moisture can be controlled.

Condensation – Why is it an Issue? What is it? How Does it Form? Where Can it Occur?

It is an issue because it forms whenever a building material, or air, reaches dew point. What this means is that the material becomes cold enough to condense water out of the air – which is when droplets form… condensation. Condensation forms on the warm side of the material… Think about a bottle of cold water. The droplets of condensation form on the outside of the bottle.

In winter, a house that is warmed could have condensation forming under the metal roof or in the walls on the inner side of the sarking. As well, it often occurs on the inside of windows.

In summer, a house that is cooled could have condensation forming on the outside of windows, on the outer side of sarking and even within the building envelope where there are changes in temperatures.

This is a problem because it can result in building materials becoming wet enough to support the proliferation of mould (aka mould growth).

This can occur in roof spaces, wall cavities, window frames, and so on.

Research done by Dewsbury, et al, found that buildings built to code may be water damaged and mouldy within their first winter.

This is a big deal.

Condensation can be a large contributing factor to the mould burden in a building – so do take it seriously.

Are you affected by mould and want to learn more?
Click here to find out more about our Inner Circle.

References:

Dewsbury, Dr M, Law, Dr T, Henderson, Dr A (17 Feb 2016) Investigation of Destructive Condensation in Australian Cool Temperate Buildings Building Standards and Occupational Licensing, Department of Justice Tasmania, Tasmania