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Study on the Adsorption Capacities for Airborne Particulates of Landscape Plants in Different Polluted Regions in Beijing (China)

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  • Wei-Kang Zhang

    (The College of Forestry, Beijing Forestry University, Beijing 100083, China)

  • Bing Wang

    (The College of Forestry, Beijing Forestry University, Beijing 100083, China
    The Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China)

  • Xiang Niu

    (The Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China)

Abstract

Urban landscape plants are an important component of the urban ecosystem, playing a significant role in the adsorption of airborne particulates and air purification. In this study, six common landscape plants in Beijing were chosen as research subjects, and the adsorption capacities for each different plant leaf and the effects of the leaf structures for the adsorption capacities for particulates were determined. Preliminary results show that needle-leaved tree species adsorbed more airborne particulates than broad-leaved tree species for the same leaf area. Pinus tabuliformis exhibits the highest adsorption capacity, at 3.89 ± 0.026 μg·cm −2 , almost two times as much as that of Populus tomentosa (2.00 ± 0.118 μg·cm −2 ). The adsorption capacities for PM 10 of the same tree species leaves, in different polluted regions had significant differences, and the adsorption capacities for PM 10 of the tree species leaf beside the Fifth Ring Road were higher than those of the tree species leaves in the Botanical Garden, although the adsorption capacities for PM 2.5 of the same tree species in different polluted regions had no significant differences. By determining the soluble ion concentrations of the airborne particulates in two regions, it is suggested that the soluble ion concentrations of PM 10 in the atmosphere in the Botanical Garden and beside the Fifth Ring Road have significant differences, while those of PM 2.5 in the atmosphere had no significant differences. In different polluted regions there are significant adaptive changes to the leaf structures, and when compared with slightly polluted region, in the seriously polluted region the epidermis cells of the plant leaves shrinked, the surface textures of the leaves became rougher, and the stomas’ frequency and the pubescence length increased. Even though the plant leaves exposed to the seriously polluted region changed significantly, these plants can still grow normally and healthily.

Suggested Citation

  • Wei-Kang Zhang & Bing Wang & Xiang Niu, 2015. "Study on the Adsorption Capacities for Airborne Particulates of Landscape Plants in Different Polluted Regions in Beijing (China)," IJERPH, MDPI, vol. 12(8), pages 1-16, August.
    • Handle: RePEc:gam:jijerp:v:12:y:2015:i:8:p:9623-9638:d:54203
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    References listed on IDEAS

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    1. Frost, K. & Frank, E. & Maibach, E., 1997. "Relative risk in the news media: A quantification of misrepresentation," American Journal of Public Health, American Public Health Association, vol. 87(5), pages 842-845.
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    Cited by:

    1. Huong-Thi Bui & Uuriintuya Odsuren & Sang-Yong Kim & Bong-Ju Park, 2022. "Seasonal Variations in the Particulate Matter Accumulation and Leaf Traits of 24 Plant Species in Urban Green Space," Land, MDPI, vol. 11(11), pages 1-15, November.
    2. Wenjun Wei & Bing Wang & Xiang Niu, 2020. "Forest Roles in Particle Removal during Spring Dust Storms on Transport Path," IJERPH, MDPI, vol. 17(2), pages 1-17, January.

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