Vehicular emissions cause heavy metal pollution and exert negative impacts on environment and roadside vegetation. Wild plants growing along roadsides are capable of absorbing considerable amounts of heavy metals; thus, could be helpful in reducing heavy metal pollution. Therefore, current study inferred heavy metal absorbance capacity of some wild plant species growing along roadside. Four different wild plant species, i.e., Acacia nilotica L., Calotropis procera L., Ricinus communis L., and Ziziphus mauritiana L. were selected for the study. Leaf samples of these species were collected from four different sites, i.e., Control, New Lahore, Nawababad and Fatehabad. Leaf samples were analyzed to determine Pb2+, Zn2+, Ni2+, Mn2+ and Fe3+ accumulation. The A. nilotica, Z. mauritiana and C. procera accumulated significant amount of Pb at New Lahore site. Similarly, R. communis and A. nilotica accumulated higher amounts of Mn, Zn and Fe at Nawababad and New Lahore sites compared to the rest of the species. Nonetheless, Z. mauritiana accumulated higher amounts of Ni at all sites compared with the other species included in the study. Soil surface contributed towards the uptake of heavy metals in leaves; therefore, wild plant species should be grown near the roadsides to control heavy metals pollution. Results revealed that wild plants growing along roadsides accumulate significant amounts of heavy metals. Therefore, these species could be used to halt the vehicular pollution along roadsides and other polluted areas.

Department of Agricultural Research Dera Ghazi Khan Pakistan

Department of Botany and Microbiology College of Science King Saud University Riyadh Saudi Arabia

Department of Botany Hindu College Moradabad Moradabad India

Department of Botany University of Agriculture Faisalabad Faisalabad Punjab Pakistan

Department of Geology and Soil Science Faculty of Forestry and Wood Technology Mendel University in Brno Brno Czech Republic

Department of Soil Science Faculty of Agricultural Sciences and Technology Bahauddin Zakariya University Multan Pakistan

Institute of Environmental Science and Engineering School of Civil and Environmental Engineering National University of Science and Technology Islamabad Pakistan

Soil and Water Testing Laboratory Dera Ghazi Khan Pakistan

Sorghum Research Substation Department of Agriculture Dera Ghazi Khan Pakistan

Zoology Department College of Science King Saud University Riyadh Saudi Arabia

Odvolání publikace

PLoS One. 2022 Aug 17;17(8):e0272410. doi: 10.1371/journal.pone.0272410. PubMed

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