Princes Highway Tempe - as with any highway there is lots of advertising signs.  They could all be made into air purifying devices.

Princes Highway Tempe – as with any highway there is lots of advertising signs. They could all be made into air purifying devices.

Particulate matter increases respiratory disease, heart disease & the incidence of fatal heart attacks. Also, according to the World Health Organisation, particulate matter causes cancer. These are really important reasons why trees are needed along streets & highways.

Development also creates an increase in particulate matter, with truck & other vehicle movement, as well as an upheaval of soil creating dust that in our area at least, is often filled with lead & other pollutants.

In come scientists from the University of Engineering & Technology in Peru who recently developed a billboard that is capable of purifying 100,000 cubic metres of air every day.

The billboard works by inhaling the air & purifying it through a water system before releasing it back into the atmosphere. They say that the billboard can reach a radius of five blocks in every direction.

Inventions like this give me hope for the future.  I would prefer trees, but air-purifying billboards could dramatically improve air quality along motorways & highways.  There are billboards at bus stops, on the backs of taxis & buses, on buildings, along highways, on the side of buildings & even on poles along city footpaths. Imagine is all of these were fitted with the air-purifying process.

Trees are still needed because they sequester carbon & have a positive impact on the mental, physical & spiritual health of human beings, whereas billboards have the opposite effect for most people. Still, billboards are a part of life with advertising everywhere. I wouldn’t mind so much if I knew the billboards were busy working to improve the air quality for five blocks in every direction.

You can watch a 2-minute video about the new billboard here –https://www.youtube.com/watch?v=k89rewsIy94

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