According to WHO data, nowadays almost half of the people in the world live in urban areas, where around 47% have poor air quality. Air pollution is responsible for around 7 million deaths worldwide every year since poor air quality is a condition that triggers various cardio-respiratory diseases [1-7]. -Only the NOx causes half of the deaths caused by diseases of this type in Spain .
Fortunately, several studies have shown the benefits of nature-based solutions in the form of biofilters with an efficiency greater than 99% to remove PM10 particles from polluted air (both indoors and outdoors). Regarding interior spaces, a Dynamic Botanical Air Filtration System (DBAF) demonstrated its potential for removing indoor VOC’s with an efficiency of 90% formaldehyde and over 33% for toluene [9-17].
There have been made experimental tests with standardized sensors to measure the efficiency of our technology regarding the emissions absorption from a car’s exhaust pipe. The test was made measuring the emissions generated by a diesel vehicle 2007 model during 40 minutes (manufactured under the standards the euro 4) with all the loads placed (engine idling; air conditioning started; lights and lights on; windscreen wipers on; stereo at high-volume; flashing lights on; anti-fogging system on and the driving assistance on).
The total amount of emissions were of 48 ppm or 98 mg / m3 of NOx, which was absorbed by 1 sqm of vegetation in 120 minutes. One MUAC has 4 sqm of vegetation so it can reduce the time of absorption to only 30 minutes, furthermore, functioning 24 hours a day, 365 days a year.
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7 Newell, K., Kartsonaki, C., Lam, K. B. H., & Kurmi, O. P. (2017). Cardiorespiratory health effects of particulate ambient air pollution exposure in low-income and middle-income countries: a systematic review and meta-analysis. The Lancet Planetary Health, 1(9), e368–e380. http://doi.org/10.1016/S2542-5196(17)30166-3
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10 Irga, P. J., Paull, N. J., Abdo, P., & Torpy, F. R. (2017). An assessment of the atmospheric particle removal efficiency of an in-room botanical biofilter system. Building and Environment. http://doi.org/10.1016/j.buildenv.2017.01.035
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13 Tudiwer, D., & Korjenic, A. (2017). The effect of an indoor living wall system on humidity, mould spores and CO2-concentration. Energy and Buildings. http://doi.org/10.1016/j.enbuild.2017.04.048
14 Pérez-Urrestarazu, L., Fernández-Cañero, R., Franco, A., & Egea, G. (2016). Influence of an active living wall on indoor temperature and humidity conditions. Ecological Engineering. http://doi.org/10.1016/j.ecoleng.2016.01.050
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Air pollution is particulate matter, tiny particles small enough to enter the cardiovascular system and major organs, where they wreak havoc on our bodies from the inside. That particulate matter comes from several main sources: manufacturing, burning fuel for heating and cooking, burning coal for energy, and burning gasoline in vehicles. In short, burning stuff is the problem. A 2016 study breaks it down: 25% of urban pollution comes from traffic, 15% from industrial activities, 20% by domestic fuel burning, 22% from unspecified sources of human origin, and 18% from natural dust and salt.
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