Uptake of metals by plants in urban areas

Karbassi, S.; Malek, Masoumeh; Shahriari, Toktam; Zahed, Mohammad Ali

doi:10.1007/s13762-016-1110-4

Cited by 5 publications

(2 citation statements)

References 33 publications

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“…Urban greenbelts play a critical role in air purification and the phytoremediation of heavy metal pollution 19 . Plants employ dual strategies for the absorption of heavy metals; one is their interception and absorption from the atmosphere through their leaves 20 , while the other is through their root systems 21,22 .…”

Section: Introductionmentioning

confidence: 99%

Spatial heterogeneity of heavy metal contamination in soils and plants in Hefei, China

Zhang

et al. 2019

Sci Rep

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The contamination of soil and plants with heavy metals, which has detrimental influences on plant growth, water purification, and food safety, has emerged as a serious global issue. To better understand the spatial variations of contamination of heavy metals associated city development and land use types, we collected soil samples and Magnolia grandiflora branches to quantify lead (Pb) and cadmium (Cd) contents of the roadside, industrial, residential, and park greenbelts in Hefei City, China. We found that Pb content in soil was the highest in roadside greenbelts and the lowest in parks with industrial and residential greenbelts being intermediate, while Cd in soil was the highest in greenbelts close to city center and decreased with the distance to city center. Pb in M. grandiflora, however, did not differ among greenbelt types but decreased with distance to the city center. Cd in M. grandiflora was the highest in roadside and lowest in parks and also decreased with the distance to the city center. Across all greenbelt types and the distances to the city center, Pb and Cd contents were positively correlated in soil and plants. Our findings suggest that vehicle traffic, population density, and age of urbanization collectively contribute to soil and plant contamination of Pb and Cd.

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Section: Introductionmentioning

confidence: 99%

Spatial heterogeneity of heavy metal contamination in soils and plants in Hefei, China

Zhang

et al. 2019

Sci Rep

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“…Okuhata et al [5] have investigated its ability to remove bisphenol derivatives from aquatic solution and it was able to remove 97% of 4,4′thiodiphenol from the culture within four days. Meanwhile, a significant number of studies focused on the ability of P. oleracea to extract heavy metals from contaminated soil or water [6][7][8][9][10][11][12][13][14]. ese studies show that the plant has a high tolerance for many metals, including Cd (II), Cu(II), Cr(III), Cr(VI), Fe(III), Mn(II), Ni (II), Pb(II), and Zn(II) ions, and has the ability to extract them to its roots from either soil or aqueous solutions with variant capacities.…”

Section: Introductionmentioning

confidence: 99%

Uptake of Chromium by Portulaca Oleracea from Soil: Effects of Organic Content, pH, and Sulphate Concentration

Alyazouri

Jewsbury

Tayim

et al. 2020

Applied and Environmental Soil Science

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Phytoextraction is an effective and environment-friendly approach for remediation of soil polluted with toxic metals. Portulaca oleracea is a potential hyperaccumulator of Cr(VI) from polluted soil. In this study, the effect of soil organic content, pH, and sulphate concentration on phytoextraction of Cr(VI) using Portulaca oleracea was investigated. Seedlings of Portulaca oleracea were grown in soils with (i) three organic content compositions, (ii) six levels of pH, and (iii) six concentrations of sulphate salts; all were irrigated with Cr(VI) solutions at 200 ppm concentration. Chromium concentration in different tissues of plants was monitored under the variant conditions. Results indicated that the uptake of Cr(VI) by Portulaca oleracea is favoured at (i) low organic content soil (0.42%), (ii) slightly alkaline pH range (∼8), and (iii) with sulphate concentration in the range of 300–600 ppm.

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Bioindicator responses and performance of plant species along a vehicular pollution gradient in western Himalaya

Kashyap

Sharma

2018

Environ Monit Assess

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Loss of green cover, and increasing pollution is a prime global concern. The problem calls for screening of pollution-tolerant tree species that can be integrated into plantation drives. Recognizing this, the study analyzed bio-indicator responses and performance of commonly occurring plant species along a pollution gradient in western Himalaya. Based on distance from the road, three sites viz., highly polluted (HP), moderately polluted (MP), and least polluted (LP), were identified. From these sites, leaves of commonly occurring 26 tree species were collected and analyzed for dust accumulation, total chlorophyll, relative water content (RWC), ascorbic acid, and pH using standard protocols. Later, assessment of Air Pollution Tolerance Index (APTI) and Anticipated Performance Indices (API) was carried out. The results revealed variations in biochemical characteristics. The pH, RWC, and total chlorophyll increased with decreasing pollution while ascorbic acid increased with increasing pollution. Dust capturing potential of Ficus carica (1.191 mg/m) and Toona ciliata (0.820 mg/m) was relatively higher. Based on the results of APTI, Grevillea robusta was classified as tolerant. It scored significantly higher values (21.06, 21.19, and 19.61 in LP, MP, and HP sites, respectively). Quercus floribunda, G. robusta (68.75% each), Juglans regia (68.7%), and T. ciliata (62.50%) were good performers in HP sites. Acer caesium, Betula utilis, and Morus alba that had low API scores (43.75%) were predicted as poor performers. Thus, G. robusta, Q. floribunda, J. regia, T. ciliata, and F. carica were evaluated as best performers. They could be integrated into plantations drives for environmental management.

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Uptake of metals by plants in urban areas

Cited by 5 publications

References 33 publications

Spatial heterogeneity of heavy metal contamination in soils and plants in Hefei, China

Spatial heterogeneity of heavy metal contamination in soils and plants in Hefei, China

Uptake of Chromium by Portulaca Oleracea from Soil: Effects of Organic Content, pH, and Sulphate Concentration

Bioindicator responses and performance of plant species along a vehicular pollution gradient in western Himalaya

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