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

Zhang WK, Wang B, Niu X - Int J Environ Res Public Health (2015)

Bottom Line: By determining the soluble ion concentrations of the airborne particulates in two regions, it is suggested that the soluble ion concentrations of PM10 in the atmosphere in the Botanical Garden and beside the Fifth Ring Road have significant differences, while those of PM2.5 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.

View Article: PubMed Central - PubMed

Affiliation: The College of Forestry, Beijing Forestry University, Beijing 100083, China. zhwk123456789@163.com.

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 PM10 of the same tree species leaves, in different polluted regions had significant differences, and the adsorption capacities for PM10 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 PM2.5 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 PM10 in the atmosphere in the Botanical Garden and beside the Fifth Ring Road have significant differences, while those of PM2.5 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.

No MeSH data available.


Adsorption PM2.5 diversity of species per unit leaf area in different contaminated areas. Vertical bars represent + standard error; n = 3. Statistical analysis by 2-way ANOVA between interaction different trees and 2 sites revealed that differences between the 2 sites were not significant. However, differences between species were found to be highly significant (p < 0.05) Interaction between site and species wan found to be not significant.
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ijerph-12-09623-f004: Adsorption PM2.5 diversity of species per unit leaf area in different contaminated areas. Vertical bars represent + standard error; n = 3. Statistical analysis by 2-way ANOVA between interaction different trees and 2 sites revealed that differences between the 2 sites were not significant. However, differences between species were found to be highly significant (p < 0.05) Interaction between site and species wan found to be not significant.

Mentions: It is also shows that the ranking of the adsorptive capacities for PM10 of different tree species leaves is the same as the rank result in Figure 2. The ANOVA results from Figure 4 show the differences in the adsorptive capacities for PM2.5 per unit of leaf area of the trees beside the Fifth Ring Road and the Botanical Garden, and it was found that there was no significant difference between the adsorptive capacities for PM2.5 and the rank of the adsorptive capacities for PM2.5 of the trees is not consistent with the rank in Figure 1.The rank of the adsorptive capacities for PM2.5 of the trees in study is Pinus tabuliformis > Salix matsudana > Pinus bungeana > Ginkgo biloba > Acer truncatum > Populus tomentosa.


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

Zhang WK, Wang B, Niu X - Int J Environ Res Public Health (2015)

Adsorption PM2.5 diversity of species per unit leaf area in different contaminated areas. Vertical bars represent + standard error; n = 3. Statistical analysis by 2-way ANOVA between interaction different trees and 2 sites revealed that differences between the 2 sites were not significant. However, differences between species were found to be highly significant (p < 0.05) Interaction between site and species wan found to be not significant.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4555302&req=5

ijerph-12-09623-f004: Adsorption PM2.5 diversity of species per unit leaf area in different contaminated areas. Vertical bars represent + standard error; n = 3. Statistical analysis by 2-way ANOVA between interaction different trees and 2 sites revealed that differences between the 2 sites were not significant. However, differences between species were found to be highly significant (p < 0.05) Interaction between site and species wan found to be not significant.
Mentions: It is also shows that the ranking of the adsorptive capacities for PM10 of different tree species leaves is the same as the rank result in Figure 2. The ANOVA results from Figure 4 show the differences in the adsorptive capacities for PM2.5 per unit of leaf area of the trees beside the Fifth Ring Road and the Botanical Garden, and it was found that there was no significant difference between the adsorptive capacities for PM2.5 and the rank of the adsorptive capacities for PM2.5 of the trees is not consistent with the rank in Figure 1.The rank of the adsorptive capacities for PM2.5 of the trees in study is Pinus tabuliformis > Salix matsudana > Pinus bungeana > Ginkgo biloba > Acer truncatum > Populus tomentosa.

Bottom Line: By determining the soluble ion concentrations of the airborne particulates in two regions, it is suggested that the soluble ion concentrations of PM10 in the atmosphere in the Botanical Garden and beside the Fifth Ring Road have significant differences, while those of PM2.5 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.

View Article: PubMed Central - PubMed

Affiliation: The College of Forestry, Beijing Forestry University, Beijing 100083, China. zhwk123456789@163.com.

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 PM10 of the same tree species leaves, in different polluted regions had significant differences, and the adsorption capacities for PM10 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 PM2.5 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 PM10 in the atmosphere in the Botanical Garden and beside the Fifth Ring Road have significant differences, while those of PM2.5 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.

No MeSH data available.