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- Räsänen, Janne V., et al. Show all 6 Authors
- Atmospheric environment 2017 v.152 pp. 345-353
- Betula pendula; Betula pubescens; air quality; atmospheric chemistry; emissions; extracellular space; geometry; leaves; monoterpenoids; nanomaterials; scanning electron microscopy; sesquiterpenoids; stomata; titanium dioxide; transmission electron microscopy; trees; volatile organic compounds; wind speed; wind tunnels
- ... Trees are known to affect air quality by capturing a remarkable amount of particles from the atmosphere. However, the significance of trees in removing very fine particles (diameter less than 0.5 μm) is not well understood. We determined particle capture efficiency (Cp) of two birch species: Betula pendula and Betula pubescens by using inert titanium dioxide fine particles (TiO2, geometric mean di ...
- Räsänen, Janne V., et al. Show all 5 Authors
- Canadian journal of forest research = 2014 v.44 no.7 pp. 831-835
- Picea abies; air quality; drought; ecosystem services; environmental factors; hydrophilicity; particulates; sodium chloride; stomatal conductance; trees; wind tunnels
- ... Trees can remove particulate matter from the atmosphere, improving air quality and providing ecosystem services. Particle removal capacity is known to differ between tree species, but the influence of environmental factors on the removal capacity is still unclear. In this study, we measured particle capture efficiency (Cp) of Norway spruce (Picea abies (L.) Karst.) in wind tunnel experiments under ...
- Räsänen, Janne V., et al. Show all 7 Authors
- Environmental pollution 2013 v.183 pp. 64-70
- Betula pendula; Betula pubescens; Pinus sylvestris; Tilia; air quality; conifers; drought; leaves; physiology; sodium chloride; soil; trees; wettability; wind tunnels
- ... Trees can improve air quality by capturing particles in their foliage. We determined the particle capture efficiencies of coniferous Pinus sylvestris and three broadleaved species: Betula pendula, Betula pubescens and Tilia vulgaris in a wind tunnel using NaCl particles. The importance of leaf surface structure, physiology and moderate soil drought on the particle capture efficiencies of the trees ...