‘Green barriers’ for air pollutant capture: Leaf micromorphology as a mechanism to explain plants capacity to capture particulate matter
نویسندگان
چکیده
Finding ways to mitigate atmospheric particulate matter (PM) is one of the key steps towards fighting air pollution and protecting people's health. The use green infrastructure option that could help improving urban quality promoting more sustainable cities. Detailed knowledge how plants capture can support plant selection for this purpose. Previous studies have primarily focused on 2D techniques assess micromorphology leaves. Here, 3D optical profilometry SEM imaging (2D) are used quantify leaf roughness other micromorphological traits three contrasting species (Hedera helix ‘Woerner’, Thuja occidentalis ‘Smaragd’, Phyllostachys nigra) located within a mixed-species barrier. These allowed us identify relative distribution adhered PM with respect surface topography leaves, high spatial resolution. Leaf did not show direct relationship deposition; however, descriptors width, depth frequency grooves important explain by Additionally, presence wax leaves was relevant adherence. All captured PM, their overall efficiency ranked from highest lowest as follows: > Hedera nigra. barrier contributed improvement, through capture, regardless location Having multiple in beneficial due diverse range micromorphologies present, thus offering different mechanisms capture.
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ژورنال
عنوان ژورنال: Environmental Pollution
سال: 2021
ISSN: ['1873-6424', '0269-7491']
DOI: https://doi.org/10.1016/j.envpol.2021.117809