Pollution characteristics and human health risk from trace metals in roadside soil and road dust around major urban parks in Delhi city

Siddiqui, Zainab; Khillare, P. S.; Jyethi, Darpa Saurav; Aithani, Deeksha; Yadav, Amit K.

doi:10.1007/s11869-020-00874-y

Cited by 19 publications

(9 citation statements)

References 57 publications

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“…The signi cant positive association found among the metals in this study suggests that these metals have a similar origin. As stated by Siddiqui et al (2020), this common source could be linked to vehicular emissions, as well as wear and strain on automotive parts. The four metal contaminants shown to be strongly negatively correlated with tree biomass were found to be.…”

Section: Evaluation Of Metals Pollution and Ecological Risk Assessmentsmentioning

confidence: 99%

“…Metals including arsenic (As), cadmium (Cd), chromium (Cr), nickel (Ni), and lead (Pb) are known to be highly poisonous when it comes to their potential effects on the environment and ecology (Protano et al 2014). Several studies have been carried out to determine the levels of metal contaminants and the ecological threats they pose in India's various ecosystems and land-use regimes (Chetia et al 2011 Siddiqui et al 2020). In India, the contribution of heavily used highways passing through urban Reserved Forests on heavy metal emission, ecological risk, and in uence on tree biomass stocking potentials are seldom observed.…”

Section: )mentioning

confidence: 99%

“…The principal sources of heavy metal pollution in urban forestry are road tra c density patterns, automotive parts and their exhaust discharges, boiler and emission, tire wear and tear, and brake lining wears (Rai et al 2014;Kaur et al 2020). Due to high levels of trace metals in materials and chemicals used, activities such as road or bridge renovation, construction, and maintenance along forest habitats lead to metal deposition in soil surfaces (Bhatia et al 2015;Siddiqui et al 2020;Dutta et al 2021). This has become a severe worry in many developing countries, with an alarming increase (Hu et al 2013;Sarma et al 2017;Devi et al 2019).…”

Section: Introductionmentioning

confidence: 99%

“…The discharge of metal pollutants from automotive lubricants, vehicular emissions, and frequent road repair in heavily and quickly-traveled National highways that pass through Reserved Forests (RFs), all contribute to the accumulation of metal pollutants in surface soils (Rai et al 2014;Ngaba and Mgelwa, 2020). This can be a valuable indicator of pollution levels and impacts on the environment (Devi et al 2019), which can signi cantly impact plant productivity, particularly tree biomass stocking potential (Siddiqui et al 2020). Metal deposition in many components of the environment, including soils, water, wetlands, and air, is of global concern today (Shi et al 2019;Adimalla 2020;Dutta et al 2021).…”

Section: Introductionmentioning

confidence: 99%

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Heavy Metal Contamination in Forest Reserved Soils Crossed by Roads, its Ecological Risks, and their Effects on Tree Biomass Stocking Potential

Malunguja

Thakur

Devi

2021

Preprint

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Metal contaminants such as Cadmium, Chromium, Nickel, and Lead are released and deposited in Reserved Forest soils as a result of heavily travelled roads. Their pollution interrupts the biogeochemical cycle in the natural environment, affecting plant productivity. However, this pollution's source, their ecological risks, and its effects on tree biomass productivity have yet to be examined. In order to examine this, an ecological study was conducted in two Assam Reserved Forests that are crossed by the National Highway (NH-15). Several ecological risk indices were used to assess potential ecological risks. Metal impacts on tree biomass stocks were predicted using regression analysis and Pearson's coefficient. The results showed that metal concentrations in soil samples collected near roads were much higher than those away from roads. However, the overall mean concentration was within the Indian guidelines. Indices of soil contaminations and pollutions ranged from mildly contaminated to highly contaminated and from low polluted to highly polluted soils. The Cd (88.97%), and Pb (52.61%) were revealed to be highly the main contaminating and sources of pollution and ecological danger in the surface soils. The strongest Pearson correlation coefficients between Cd-Cr (94%), Cd-Ni (74%), Cd-Pb (97%), Cr-Ni (88%), Cr-Pb (90%), and Ni-Pb (76%) suggest that metals are very comparable. While the strong negative relationships between tree biomass stock and metals, implying that metals are vital factors affecting tree biomass productivity. Thus, conservationists, ecologists, and policymakers must devise effective mitigation strategies for vehicular emission and car discharge caused by traffic passing through reserved forests.

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Section: Evaluation Of Metals Pollution and Ecological Risk Assessmentsmentioning

confidence: 99%

Section: )mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Heavy Metal Contamination in Forest Reserved Soils Crossed by Roads, its Ecological Risks, and their Effects on Tree Biomass Stocking Potential

Malunguja

Thakur

Devi

2021

Preprint

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“…(Mama and Nnaji et al, 2021). Principal component analysis of heavy metals in agricultural soils of Kermansha province in western Iran showed that As, Cd, Cu, Pb, Se and Zn were anthropogenic, while Cr and Ni were geo-derived (Rahman and Jolly et al, 2021).Based on the analysis of heavy metals in the park soils of Delhi, India, PC1 has a high load of Fe, Mn, Co and Zn, which indicates that the crustal origin is mainly influenced by human beings; The content of Ni and Zn in PC2 is high, which is mainly from electroplating and electroplating process (Siddiqui and Khillare et al, 2020)。Principal component analysis can only analyze the approximate source points of soil heavy metals, but does not specify the specific influencing factors. Therefore, on this basis, this paper uses CATREG model to further analyze the relationship between heavy metals and environmental factors.…”

Section: Analysis Of Spatial Distribution Of Heavy Metals In Soilmentioning

confidence: 99%

Analysis and Source Identification of Heavy Metals in Soils of Central Urban Area of Chongqing, China

Chen

Zhu

Cai

et al. 2021

Preprint

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In megacities, due to frequent human activities, large amounts of metals enter the soil indirectly or directly and eventually flow to people through the food chain. Therefore, the analysis and identification of soil heavy metal sources is an important part of revealing soil heavy metal pollution. The spatial content and potential sources of 11 heavy metals were analyzed from 342 surface soil samples collected from the central city of Chongqing in southwest China. The results showed that the main heavy metal elements under the first principal component loading were copper (Cu), nickel(Ni), zinc (Zn), manganese (Mn), cadmium (Cr),plumbum (Pb) and cadmium(Cd).The second principal component (F2) was mainly loaded with molybdenum (Mo), arsenic (As), mercury (Hg)and antimony (Sb), and the PCA-APCs receptor model of 11 heavy metals was constructed. The PCA-APCs receptor models of 11 heavy metals were constructed. The results of classification regression analysis confirmed the main sources of heavy metals. Population density mainly affected Cu (0.539), soil mainly affected Ni (0.411), Sb (0.493), Zn (0.472) and Mn (0.206), and water quality mainly affected As(0.453) and Mo (0.374). Air quality mainly affects Cd (0.332) and Cr (0.371), traffic activity mainly affects Hg (0.312), and slope mainly affects Pb (0.313). Hot spot analysis showed that heavy metals had a high degree of coincidence with environmental factors such as soil parent material, slope, soil type and traffic activities. The results of this study can be effectively used to make scientific decisions and strategies, and an effective strategy for prevention and control of soil heavy metal pollution should be formulated to protect the urban soil environmental quality.

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The Concentrations, Sources, Ecological, and Human Health Risk Assessment of Heavy Metals in Roadside Soils of Six Cities in Shanxi Province, China

Wang

et al. 2023

Enviro Toxic and Chemistry

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Roadside soils are regarded as a reservoir for heavy metal pollution, which potentially leads to ecosystem deterioration as well as serious hazard to human health. A comprehensive investigation was conducted for the levels, relationship with soil properties, and potential sources of heavy metals (Hg, Cu, Zn, Pb, Cd, and Cr) in roadside soils in six cities (Changzhi, Jincheng, Yuncheng, Linfen, Xinzhou, Datong) of Shanxi Province; and the corresponding ecological risk and human health risk associated with the concentrations of heavy metals were addressed. Heavy metal concentrations of 112 roadside soil samples in the surveyed cities were, in decreasing order, Zn, Cu, Cr, Pb, Cd, and Hg, which were higher than corresponding background values. The highest concentrations were in Changzhi. The results of Pearson correlation analysis demonstrated that positive correlations in varying degrees existed between soil properties such as electrical conductivity, total nitrogen, total phosphorus, and total organic carbon with specific heavy metals and that negative correlations were observed for clay and electrical conductivity. Anthropogenic sources related to traffic emissions and industrialization were the main sources of heavy metals in roadside soils according to principal component analysis. The ecological risk assessments were achieved by pollution index and potential risk index, indicating that contamination with Hg was the most serious, which posed the highest risk to the ecosystems in the surveyed cities; and the ecological risk in Changzhi ranked at the top compared with other cities. For the human health risk assessment, the results demonstrated that the noncarcinogenic and carcinogenic risks were in the acceptable range in the surveyed cities. However, there was a higher health risk from heavy metal exposure for children than adults, and the main exposure pathway was soil ingestion. In addition, Changzhi was the city with the highest noncarcinogenic and carcinogenic risks, and the main human health risks were posed by Cr contamination in roadside soil, which was different from the results of ecological risks. Both results of ecological and health risk assessment demonstrated that the higher risk exhibited in southern and southeastern cities than northern cities in Shanxi Province.

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Pollution characteristics and human health risk from trace metals in roadside soil and road dust around major urban parks in Delhi city

Cited by 19 publications

References 57 publications

Heavy Metal Contamination in Forest Reserved Soils Crossed by Roads, its Ecological Risks, and their Effects on Tree Biomass Stocking Potential

Heavy Metal Contamination in Forest Reserved Soils Crossed by Roads, its Ecological Risks, and their Effects on Tree Biomass Stocking Potential

Analysis and Source Identification of Heavy Metals in Soils of Central Urban Area of Chongqing, China

The Concentrations, Sources, Ecological, and Human Health Risk Assessment of Heavy Metals in Roadside Soils of Six Cities in Shanxi Province, China

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