Plant species differences in particulate matter accumulation on leaf surfaces

• Published in: The Science of the total environment 2012-06, Vol.427-428, p.347-354
• Main Authors: Sæbø, A., Popek, R., Nawrot, B., Hanslin, H.M., Gawronska, H., Gawronski, S.W.
• Format: Article
• Language: English
• Subjects: Accumulation on leaves; Acer platanoides; Air Pollutants - analysis; Air Pollutants - chemistry; air pollution; Air Pollution - prevention & control; Air quality; Analysis methods; Applied sciences; atmospheric deposition; Atmospheric pollution; Betula pendula; Environmental Monitoring; epicuticular wax; Exact sciences and technology; field experimentation; leaves; Neillia; Norway; particle size; Particulate matter; Particulate Matter - analysis; Particulate Matter - chemistry; particulates; Pinus mugo; Pinus sylvestris; Plant Leaves - anatomy & histology; Plant Leaves - chemistry; Plants - anatomy & histology; Plants - chemistry; Poland; pollutants; Pollution; Prunus avium; shrubs; species differences; Species Specificity; Taxus; Taxus baccata; Taxus media; Tilia cordata; trees; Trees - anatomy & histology; Trees - chemistry; Trees and shrubs; trichomes; urban areas; Urban greening; Waxes - analysis; Waxes - chemistry
• ISSN: 0048-9697; 1879-1026
• DOI: 10.1016/j.scitotenv.2012.03.084

Particulate matter (PM) accumulation on leaves of 22 trees and 25 shrubs was examined in test fields in Norway and Poland. Leaf PM in different particle size fractions (PM10, PM2.5, PM0.2) differed among the species, by 10- to 15-folds at both test sites. Pinus mugo and Pinus sylvestris, Taxus media and Taxus baccata, Stephanandra incisa and Betula pendula were efficient species in capturing PM. Less efficient species were Acer platanoides, Prunus avium and Tilia cordata. Differences among species within the same genus were also observed. Important traits for PM accumulation were leaf properties such as hair and wax cover. The ranking presented in terms of capturing PM can be used to select species for air pollution removal in urban areas. Efficient plant species and planting designs that can shield vulnerable areas in urban settings from polluting traffic etc. can be used to decrease human exposure to anthropogenic pollutants. ► Leaf accumulation of particulate matter (PM) on trees and shrubs was quantified. ► PM accumulation differed 10–15-folds among species at the test sites. ► Leaf properties and wax content were important determinants of PM accumulation. ► Efficient species should be used to shield vulnerable urban areas from PM exposure.