Quantitative analysis of ecological risk and human health risk of potentially toxic elements in farmland soil using the <scp>PMF</scp> model

Huang, Chang‐Chen; Cai, Li‐Xuan; Xu, Ying; Wen, Han‐Hui; Luo, Jie; Hu, Guocheng; Chen, Lai‐Guo; Wang, Han‐Zhi; Xu, Xu-Bang; Mei, Jing-Xian

doi:10.1002/ldr.4277

“…For HQ with different exposure routes of the same PTE, each soil PTE presented the risk of oral ingestion > oral and nasal inhalation risk > skin contact risk. The result was in agreement with the reports 14 , 37 . Therefore, oral intake was the main exposure route of non-carcinogenic risk, and oral intake of Cr and Pb caused serious non-carcinogenic risk to children.…”

Section: Resultssupporting

confidence: 94%

Ecological risk and health risk analysis of soil potentially toxic elements from oil production plants in central China

Gan

¹

,

Xie

²

,

Yang

³

2022

Sci Rep

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In this study, the enrichment factor (EF) and pollution load index (PLI) were used to evaluate the pollution of potential toxic elements (PTEs) in the soil near the oil production plants in central China, and the potential ecological risk (PER) and human health risk (HHR) assessment model were used to evaluate the PER and HHR caused by the soil PTEs in the study area. The mean EFs of all PTEs were greater than 1, PTEs have accumulated to varying degrees, especially Cr, Ni and Pb were the most serious. The average value of PLI was 2.62, indicating that the soil PTEs were seriously polluted. The average $${E}_{r}^{i}$$ E r i values of PTEs were Cr > Pb > Cd > Ni > As > Cu > Zn > Mn, of which Cr, Pb, Cd and Ni were at medium and above PER levels. Both adults and children in the study area suffered from varying degrees of non-carcinogenic and carcinogenic risks. The total hazard index (THI) values of children (7.31) and adults (1.03) were all > 1, and the total carcinogenic risk index (TCRI) of children (9.44E−04) and adults (5.75E−04) were also > 10–4. In particular, the hazardous quotient (HQ) of Cr and Pb for children under the oral intake route were 4.91 and 1.17, respectively, caused serious non-carcinogenic risk. And the carcinogenic risk index (CRI) values of the PTEs in adults and children under the three exposure routes were Cr > Ni > > As > Pb > > Cd. Among them, the CRI values of Cr and Ni in children and adults by oral intake were both greater than 10–4, showing a strong carcinogenic risk. The results will provide scientific basis for environmental protection and population health protection in this area.

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“…For HQ with different exposure routes of the same PTE, each soil PTE presented the risk of oral ingestion > oral and nasal inhalation risk > skin contact risk. The result was in agreement with the reports 11,33 . Therefore, oral intake was the main exposure route of non-carcinogenic risk, and oral intake of Cr and Pb caused serious non-carcinogenic risk to children.…”

Section: Human Health Risk Assessmentsupporting

confidence: 94%

Ecological risk and health risk analysis of soil potentially toxic elements from oil production plants in central China

Gan

¹

,

Xie

²

,

Yang

³

2022

Preprint

0

View full text Add to dashboard Cite

In this study, the enrichment factor (EF) and pollution load index (PLI) were used to evaluate the pollution of potential toxic elements (PTEs) in the soil near the oil production plants in central China, and the potential ecological risk (PER) and human health risk (HHR) assessment model were used to evaluate the PER and HHR caused by the soil PTEs in the study area. The mean EFs of all PTEs were greater than 1, PTEs have accumulated to varying degrees. The average value of PLI was 2.62, indicating that the soil PTEs were seriously polluted. The average ${E}_{r}^{i}$ values of PTEs were Cr > Pb > Cd > Ni > As > Cu > Zn > Mn, of which Cr, Pb, Cd and Ni were at medium and above PER levels. Both adults and children in the study area suffered from varying degrees of non-carcinogenic and carcinogenic risks. The total hazard index (THI) values of children (7.31) and adults (1.03) were all > 1, and the total carcinogenic risk index (TCRI) of children (9.44E-04) and adults (5.75E-04) were also > 10 − 4. The results will provide scientific basis for environmental protection and population health protection in this area.

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“…In terms of carcinogenic risk, the total TCR values of PTEs for adults and children were on the order of 1E−05, within the range of 1E−06 and 1E−04, indicating that the carcinogenic risk of soil PTEs for the human body is acceptable in the study area. In general, the noncarcinogenic and carcinogenic risks of PTEs from different sources in children were higher than those in adults, which can be explained by children having more opportunities PTE contamination through hand-to-mouth ingestion and dermal contact than adults due to the areas where they play and unhealthy eating habits (e.g., children are more likely to suck their fingers) 79 . Therefore, different parameters were set when employing the health risk assessment model.…”

Section: Resultsmentioning

confidence: 97%

Source apportionment and source-specific risk evaluation of potential toxic elements in oasis agricultural soils of Tarim River Basin

Li

¹

,

Abuduwaili

²

,

Ma

³

et al. 2023

Sci Rep

2

0

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As rapidly developing area of intensive agriculture during the past half century, the oases in the source region of the Tarim River have encountered serious environmental challenges. Therefore, a comparative analysis of soil pollution characteristics and source-specific risks in different oases is an important measure to prevent and control soil pollution and provide guidance for extensive resource management in this area. In this study, the concentration of potential toxic elements (PTEs) was analyzed by collecting soil samples from the four oases in the source region of the Tarim River. The cumulative frequency curve method, pollution index method, positive matrix factorization (PMF) model, geographical detector method and health risk assessment model were used to analyze the pollution status and source-specific risk of potential toxic elements in different oases. The results showed that Cd was the most prominent PTE in the oasis agricultural soil in the source region of the Tarim River. Especially in Hotan Oasis, where 81.25% of the soil samples were moderately contaminated and 18.75% were highly contaminated with Cd. The PTEs in the Hotan Oasis corresponded to a moderate level of risk to the ecological environment, and the noncarcinogenic risk of soil PTEs in the four oases to local children exceeded the threshold (TH > 1), while the carcinogenic risk to local residents was acceptable (1E−06 < TCR < 1E−04). The research results suggested that the Hotan Oasis should be the key area for soil pollution control in the source region of the Tarim River, and agricultural activities and natural sources, industrial sources, and atmospheric dust fall are the priority sources that should be controlled in the Aksu Oasis, Kashgar Oasis and Yarkant River Oasis, respectively. The results of this study provide important decision-making support for the protection and management of regional agricultural soil and the environment.

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Quantitative analysis of ecological risk and human health risk of potentially toxic elements in farmland soil using the PMF model

Cited by 52 publications

References 64 publications

Ecological risk and health risk analysis of soil potentially toxic elements from oil production plants in central China

Ecological risk and health risk analysis of soil potentially toxic elements from oil production plants in central China

Ecological risk and health risk analysis of soil potentially toxic elements from oil production plants in central China

Source apportionment and source-specific risk evaluation of potential toxic elements in oasis agricultural soils of Tarim River Basin

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