Polycyclic Aromatic Hydrocarbon (PAH)–Contaminated Soil Decontamination Through Vermiremediation

Thakur, Samrendra Singh; Lone, Azhar Rashid; Singh, Kiran; Bhattacharyya, Siddhartha Shankar; Ratnasari, Anisa; Yadav, Ajar Nath; Jain, S. K.; Yadav, Shweta

doi:10.1007/s11270-023-06253-4

Cited by 7 publications

(2 citation statements)

References 129 publications

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“…Similarly, ref. [97] employed vermiremediation by harnessing the power of earthworms to address PAH-contaminated soil, demonstrating the earthworms' ability to accelerate the transformation of PAHs into less toxic metabolites. The resulting nutrient-rich worm castings were suitable for use as a soil amendment.…”

Section: Mitigation Effects Of Organic and Emerging Contaminantsmentioning

confidence: 99%

Effects of Vermicompost on Soil and Plant Health and Promoting Sustainable Agriculture

Oyege,

Balaji Bhaskar

2023

Soil Systems

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This review highlights the potential of vermicompost and its derived products as sustainable and eco-friendly solutions for enhancing production and pest management in grain crops. It assesses their impact comprehensively on crops such as maize, wheat, barley, rice, and pearl millet. Vermicompost improves soil quality, increases nutrient availability, boosts crop productivity, and enhances pest and disease tolerance. It acts as an organic fertilizer, enriching the soil with essential nutrients, humic acids, growth-regulating hormones, and enzymes, improving plant nutrition, photosynthesis, and overall crop quality. Furthermore, vermicompost shows promise in mitigating soil degradation and sequestering organic carbon while demonstrating the potential for pest management, including effectiveness against pests like fall armyworm (Spodoptera frugiperda). This review emphasizes the importance of integrated nutrient management and proper application strategies to maximize the benefits of vermicompost in grain crops. Factors such as the form and timing of application, efficacy against specific pests, and economic viability for different farming scales are discussed. Understanding these factors is crucial for successfully implementing and adopting vermicompost-based pest management strategies in grain crops. This review also explores the potential of vermicomposting as an eco-friendly and cost-effective solution to remediate organic contaminants, emerging contaminants, personal-care and pharmaceutical products, and microplastics. The review further identifies knowledge gaps and highlights the need for future studies to effectively utilize vermicompost and its derived products in cereal production for sustainable agriculture, contributing to global food security.

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Section: Mitigation Effects Of Organic and Emerging Contaminantsmentioning

confidence: 99%

Effects of Vermicompost on Soil and Plant Health and Promoting Sustainable Agriculture

Oyege,

Balaji Bhaskar

2023

Soil Systems

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“…Consequently, there are several mechanisms involved in vermiremediation: vermiextraction is the process in which earthworms remove contaminants from the substrate by dermal and intestinal absorption and accumulate them in their bodies [64,75]; vermitransformation changes organic pollutants, passing through the earthworm's gut, by decomposing into less toxic forms by the microorganisms and enzymes that colonise it [66,75]; the drilodegradation occurs in the 2 mm thick zone around earthworms' burrow walls, called drillosphere [76]. Due to the release of earthworm residues, mucous secretions and casts, this area becomes a microbial hotspot with a great potential for the degradation of organic compounds [77,78].…”

Section: Introductionmentioning

confidence: 99%

A Systematic Review on Earthworms in Soil Bioremediation

Tagliabue,

Marini,

De Bernardi

et al. 2023

Applied Sciences

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Bioremediation techniques are increasingly popular in addressing soil pollution. Despite this, using earthworms as first actors or adjuvants in decontamination is an open and little-discussed field. This paper focuses on vermiremediation effectiveness alone or combined with other bioremediation methods, such as phytoremediation and bioaugmentation. Literature was collected following the PRISMA criteria, setting the search with the following keywords: “(vermiremediation) AND (bioremediation OR phytoremediation OR plant*) AND (bioaugmentation OR bacteria)”. The investigation was performed on Google Scholar, Science Direct, SciFinder and Web of Science databases. The article data were collected, compared, elaborated, graphically summarised and discussed to assess if the earthworms’ activities play a critical role in tackling several soil pollutions. Furthermore, the review aimed to identify the most promising techniques in the function of the xenobiotic examined: organic, inorganic or both. Any gaps and criticism were highlighted to facilitate future research in this study area.

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Variation in Polycyclic Aromatic Compound (PAC) Concentrations in a Norway Spruce Stand Close to a Major Traffic Route—Influence of Distance and Season

Klingberg,

Strandberg,

Grundström

et al. 2023

Water Air Soil Pollut

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Air concentrations of polycyclic aromatic compounds (PACs) were measured in a Norway spruce (Picea abies) stand at four different distances from a major traffic route near Gothenburg, Sweden, during summer and winter 2019, using passive samplers. In total, the concentrations of 32 polycyclic aromatic hydrocarbons (PAHs) and six dibenzothiophenes (DBTs) and NO2 were analysed. PAC air concentrations were on average 2.5 times higher during the winter compared to the summer. All investigated PAH categories and compounds as well as dibenzothiophene declined linearly with the logarithmic distance from the traffic route. This indicates that the length of pollutant pathways through vegetation is a valid proxy to assess health risks of traffic-related PAC pollutants. Concentrations of heavier PAHs declined faster (concentration at site furthest away from the road was 6% and 33% of concentration at site closest to road, for summer and winter respectively) with increasing distance from traffic compared to lighter PAHs (63% and 68% for summer and winter respectively). As a result, the mix of PAHs changed with the depth into the forest stand (i.e. distance from the road) with potential effects on the toxicity as well as on diagnostic ratios used for source attribution. This is likely caused by different deposition rates among the PAH compounds to the vegetation surfaces, although the exact mechanism needs to be further investigated. This study provides new information that can improve air quality risk assessment and limit the exposure of the population to toxic air pollutants such as PACs.

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Polycyclic Aromatic Hydrocarbon (PAH)–Contaminated Soil Decontamination Through Vermiremediation

Cited by 7 publications

References 129 publications

Effects of Vermicompost on Soil and Plant Health and Promoting Sustainable Agriculture

Effects of Vermicompost on Soil and Plant Health and Promoting Sustainable Agriculture

A Systematic Review on Earthworms in Soil Bioremediation

Variation in Polycyclic Aromatic Compound (PAC) Concentrations in a Norway Spruce Stand Close to a Major Traffic Route—Influence of Distance and Season

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