The World Health Organization states that air pollution causes more than seven million premature deaths every year – double the number of people dying from HIV, malaria and tick-borne encephalitis combined. Further, statistics show that 7.5% of all deaths in the EU in 2016 could be attributed to diseases of the respiratory system, from stroke and heart disease to pneumonia, lung cancer and asthma.
A significant contributor to these figures is the sheer amount of time we spend inside buildings.
While there is often concern regarding air pollution outdoors, the majority (four million) of the seven million deaths linked to air pollution are in fact caused by indoor air pollution. Indeed, between our homes, schools, offices, cars and public buildings, the US Environmental Protection Agency has shown that we typically spend 90% of our time indoors, where the concentrations of potentially harmful pollutants are often two to five times higher than typical outdoor concentrations.
This is where the concept of ‘sick building syndrome’ (SBS) stems from – used to describe situations where people experience negative health effects from spending time in a home or building.
Volatile organic compounds (VOCs)
Many of the adverse effects of indoor air pollution and poor indoor air quality (IAQ) are caused by volatile organic compounds (VOCs).
VOCs are both man-made and naturally occurring organic chemicals that evaporate at low ambient room temperature and are easily dispersed into the surrounding air, many of which can be harmful to humans. Examples include ammonia and formaldehyde.
Given the impacts, and the amount of time we spend inside, it is important to reduce the presence of VOCs in indoor environments wherever possible.
There are multiple ways to achieve this. Increasing ventilation can allow VOCs to disperse, while lowering humidity and temperatures can ensure a reduction in the number of VOCs emitted by building materials such as wood, paints, and adhesives.
At Avery Dennison, however, we take this one step further, working to eliminate VOCs as far as possible by ensuring all our products emit as few VOCs as possible.
Achieving low VOC levels
To achieve low VOC, we consider some of the main factors that contribute to the presence of such compounds, including the composition of materials, production process and transportation of materials.
Critically, this needs to be done while maintaining product performance.
To strike the ideal balance, our research and development department continually performs rigorous tests, exploring the various options available.
As an example, while rubber tapes and modified acrylic adhesives perform well, they are higher in VOCs. As a result, we use pure acrylics to reduce the impact of chemistry on the release of VOCs, while still ensuring our products work as effectively as possible.
This is why we often use pure acrylic adhesives based on emulsion in our products made for the building and construction industry, capable of bonding to a range of metals, plastics, woods and other commonly  used materials.
It ties into our values. At Avery Dennison, we’re driven by doing the right thing, always, using imagination and intellect to create new possibilities.
I dont agree with this statement, this is too black and white. We do not only use pure dispersion acrylics in B&C, but also other types of PSA. Otherwise we would not be able to bond to a high number of materials. Please check with Quin on this. We do always try to minimise the amount of VOC.
I have inserted the word often into this sentence… that way it suggests it is not the only PSA used.