A comprehensive review of recent research concerning the role of low molecular weight organic acids on the fate of organic pollutants in soil

Peña, A.

doi:10.1016/j.jhazmat.2022.128875

Cited by 18 publications

(3 citation statements)

References 73 publications

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“…Anthropogenic activities are the primary source of soil contaminants. Both organic and inorganic pollutants can enter the soil matrix through various pathways, including the application of fertilizers and pesticides, improper disposal of wastewater, pharmaceuticals, plastics, and the burning of fossil fuels (Peña, 2022;Gautam et al, 2023). Once these pollutants have infiltrated the soil matrix, remediation becomes extremely challenging and costly.…”

Section: Editorial On the Research Topic Soil Pollution Risk Assessme...mentioning

confidence: 99%

Editorial: Soil pollution, risk assessment and remediation

Zhang

Yang

et al. 2023

Front. Environ. Sci.

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Section: Editorial On the Research Topic Soil Pollution Risk Assessme...mentioning

confidence: 99%

Editorial: Soil pollution, risk assessment and remediation

Zhang

Yang

et al. 2023

Front. Environ. Sci.

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“…Contaminants undergo transformation, mineralization, transportation, and conversion into nonextractable residues (NERs) in soil, which all result in dissipation of contaminants in soil. − Studies showed that NER formation was the major pathway of SAs in soil (>78%), while mineralization was a minor pathway (mostly ∼2%). − The presence of plants can enhance the dissipation of contaminants. − The enhancement may be attributed to stimulated microbial activity in the rhizosphere, , increased contaminant bioavailability, degradation of contaminants by excreted enzymes, and root uptake . However, the effects of plant growth on the overall fate of SAs in soil are not sufficiently explored.…”

Section: Introductionmentioning

confidence: 99%

Maize (Zea mays L.) Plants Alter the Fate and Accumulate Nonextractable Residues of Sulfamethoxazole in Farmland Soil

Wu,

Sun,

Cao

et al. 2024

Environ. Sci. Technol.

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The fate of sulfonamide antibiotics in farmlands is crucial for food and ecological safety, yet it remains unclear. We used [phenyl-U-14 C]-labeled sulfamethoxazole ( 14 C-SMX) to quantitatively investigate the fate of SMX in a soil−maize system for 60 days, based on a six-pool fate model. Formation of nonextractable residues (NERs) was the predominant fate for SMX in unplanted soil, accompanied by minor mineralization. Notably, maize plants significantly increased SMX dissipation (kinetic constant k d = 0.30 day −1 vs 0.17 day −1 ), while substantially reducing the NER formation (92% vs 58% of initially applied SMX) and accumulating SMX (40%, mostly bound to roots). Significant NERs (maximal 29−42%) were formed via physicochemical entrapment (determined using silylation), which could partially be released and taken up by maize plants. The NERs consisted of a considerable amount of SMX formed via entrapment (1−8%) and alkali-hydrolyzable covalent bonds (2−12%, possibly amide linkage). Six and 10 transformation products were quantified in soil extracts and NERs, respectively, including products of hydroxyl substitution, deamination, and N-acylation, among which Nlactylated SMX was found for the first time. Our findings reveal the composition and instability of SMX-derived NERs in the soil− plant system and underscore the need to study the long-term impacts of reversible NERs.

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“…The main source of soil pollutants is anthropogenic activity. According to (Peña, 2022;Gautam et al, 2023), Both organic and inorganic contaminants can move to the soil components through various pathways, such as the application of fertilizers and pesticides, inadequate wastewater disposal, the usage of plastics, as well as the combustion of fossil fuels. Remediation is very difficult and expensive after these pollutants have gotten into the soil matrix.…”

Section: Introductionmentioning

confidence: 99%

Geospatial evaluation and bio-remediation of heavy metal-contaminated soils in arid zones

Mohamed,

Jalhoum,

Hendawy

et al. 2024

Front. Environ. Sci.

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Introduction: Soil pollution directly impacts food quality and the lives of both humans and animals. The concentration of heavy metals in Egypt’s drain-side soils is rising, which is detrimental to the quality of the soil and crops. The key to reducing the detrimental effects on the ecosystem is having accurate maps of the spatial distribution of heavy metals and the subsequent use of environmentally sustainable remediation approaches. The objective of this work is to assess soil contamination utilizing spatial mapping of heavy metals, determine contamination levels using Principal Component Analysis (PCA), and calculate both the contamination severity and the potential for bioremediation in the soils surrounding the main drain of Bahr El-Baqar. Furthermore, evaluating the capacity of microorganisms (bacteria, fungi, and “Actinomycetes) to degrade heavy elements in the soil.Methodology: 146 soil sample locations were randomly selected near the Bahr El-Baqar drain to examine the degree of soil pollution Ordinary Kriging (OK), method was used to map and analyze the spatial distribution of soil contamination by seven heavy metals (Cr, Fe, Zn, Cd, Pb, As, and Ni). Modified contamination degree (mCd) and PCA were used to assess the research area’s soil pollution levels. The process involved isolating, identifying, and classifying the microorganisms present in the soil of the study area. The study findings showed that variography suggested the Stable model effectively matched pH, SOM, and Cd values. Furthermore, the exponential model proved suitable for predicting Fe, Pb and Ni, while the spherical model was appropriate for Ni, Cr, and Zn.Results: The study revealed three levels of contamination, with an extremely high degree (EHDC) affecting approximately 97.49% of the area. The EHDC exhibited average concentrations of heavy metals: 79.23 ± 17.81 for Cr, 20,014.08 ± 4545.91 for Fe, 201.31 ± 112.97 for Zn, 1.33 ± 1.37 for Cd, 40.96 ± 26.36 for Pb, 211.47 ± 13.96 for As, and 46.15 ± 9.72 for Ni. Isolation and identification of microorganisms showed a significant influence on the breakdown of both organic and inorganic pollutants in the environment. The study demonstrated exceptionally high removal efficiency for As and Cr, with a removal efficiency reached 100%, achieved by Rhizopus oryzae, Pseudomonas aeruginosa, and Bacillus thuringiensis.Conclusion: This study has designated management zones for soil contamination by mapping soil pollutants, geo-identified them, and found potential microorganisms that could significantly reduce soil pollution levels.

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A comprehensive review of recent research concerning the role of low molecular weight organic acids on the fate of organic pollutants in soil

Cited by 18 publications

References 73 publications

Editorial: Soil pollution, risk assessment and remediation

Editorial: Soil pollution, risk assessment and remediation

Maize (Zea mays L.) Plants Alter the Fate and Accumulate Nonextractable Residues of Sulfamethoxazole in Farmland Soil

Geospatial evaluation and bio-remediation of heavy metal-contaminated soils in arid zones

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