Plastic mulch film induced soil microplastic enrichment and its impact on wind-blown sand and dust

Tian, Xiaohong; Yang, Meiniu; Guo, Zhongling; Chang, Chun‐Ping; Li, Jifeng; Guo, Zhaopei; Rende, Wang; Li, Qing; Zou, Xueyong

doi:10.1016/j.scitotenv.2021.152490

Cited by 46 publications

(34 citation statements)

References 43 publications

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“…On average, 0.8 ± 0.96 fibers were observed in the five blank air groups (Table S3). This level of pollution was generally consistent with that reported by previous studies. ,, …”

Section: Methodssupporting

confidence: 93%

“…The <0.106 mm soil aggregate fraction contained the highest MP concentration of 736.96 ± 295.7 kg –1 . The MPs generally adhered to, were incorporated into, or were found in the interspaces of the soil aggregates. ,, Tillage and cultivation can disrupt macroaggregates, decreasing the level of physical protection of MPs. Thus, the macroaggregates with incorporated MPs can be crushed into erodible microaggregates and MPs can be dispersed .…”

Section: Resultsmentioning

confidence: 99%

“…Abundant MPs have accumulated in soils. These MPs can effectively aggregate with soil particles, , thus affecting basic soil physicochemical properties (such as soil aggregate size, bulk density, water-holding capacity, and organic matter), which in turn may affect water and wind erosion processes. − Dry soils with aggregates of more erodible sizes (<0.85 mm) are more susceptible to wind erosion and therefore have higher potential for the translocation of MPs present in the soil. − Studies have further suggested that wind erosion-induced MP emissions may be an important airborne source of MPs. , …”

Section: Introductionmentioning

confidence: 99%

“…Recently, wind tunnel experiments were conducted to explore the characteristics of MPs in wind-blown sediments in different environments. , Field studies have been performed to investigate how MPs are enriched in wind-blown sand and dust. ,, The possible dispersive routes of wind-driven atmospheric MPs were also evaluated using a forward (backward) trajectory model (the HYSPLIT model). , Fundamentally, MP translocation by wind erosion is affected by processes such as advection, dispersion, diffusion, degradation, settling, adsorption, and aggregation. ,, These studies have suggested that developing a framework for modeling MP transport by wind erosion at different locations based on local conditions is critical …”

Section: Introductionmentioning

confidence: 99%

“…In aerodynamics, wind erosivity (wind speed and turbulence) and soil erodibility (dry soil aggregate size or soil aggregate stability) can be summarized as the basic factors that influence wind erosion-induced MP transport in different environments. ,, The erodible-sized aggregates and aggregate stability are important parameters that are required to characterize soil erodibility and further model MP emissions due to wind erosion . The formation of aggregates is influenced by the MP shape, including MP fibers, films, or fragments. ,, Some studies further revealed that various concentrations and abundances of MPs were observed for different wet soil aggregate size fractions. , However, no attempts have been made to determine the MP number distribution in different size fractions of dry soil aggregates or its implications for MP emissions due to wind erosion.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Dry Soil Aggregate Size on Microplastic Distribution and Its Implications for Microplastic Emissions Induced by Wind Erosion

Yang

Tian

Guo

et al. 2022

Environ. Sci. Technol. Lett.

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Microplastics (MPs) have become a problematic pollutant in different environments. Dry soil aggregates may have a remarkable influence on the emissions of MPs from surface soil due to wind erosion. Here, we sampled surface soils and monitored wind erosion events to investigate the number of MPs distributed in different dry soil aggregate sizes and the implications for MP emissions induced by wind erosion. Of the MPs in soils, 35% (453.49 ± 187.62 kg–1) were associated with soil aggregates and 65% (848.69 ± 412.04 kg–1) were dispersed. Only 38% of all fiber and 27% of all nonfiber MPs were associated with soil aggregates. The abundances of <2.5 mm fibers and <0.5 mm nonfibers decreased exponentially with an increase in aggregate size. With an increase in the abundance of microfibers associated with soil aggregates, the total organic matter and nitrogen contents increased while the mean soil particle size decreased. The MP size distributions for different soil aggregate size fractions showed sigmoid trends similar to those described by logistic models. The aggregate stability and wind speed were inversely and positively correlated with microfiber enrichment, respectively, in wind-blown sand and dust. This study provides the first insights into the number distribution of MPs in different dry soil aggregate fractions.

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“…On average, 0.8 ± 0.96 fibers were observed in the five blank air groups (Table S3). This level of pollution was generally consistent with that reported by previous studies. ,, …”

Section: Methodssupporting

confidence: 93%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Effect of Dry Soil Aggregate Size on Microplastic Distribution and Its Implications for Microplastic Emissions Induced by Wind Erosion

Yang

Tian

Guo

et al. 2022

Environ. Sci. Technol. Lett.

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Critical Review of Microplastics in Soil

Nunes

Alves

Carvalho³

et al. 2023

Microplastics in the Ecosphere

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Beyond surface: Unveiling ecological and economic ramifications of microplastic pollution in the oceans

Kurniawan,

Mohyuddin,

Othman

et al. 2024

Water Environment Research

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Every year, the global production of plastic waste reaches a staggering 400 million metric tons (Mt), precipitating adverse consequences for the environment, food safety, and biodiversity as it degrades into microplastics (MPs). The multifaceted nature of MP pollution, coupled with its intricate physiological impacts, underscores the pressing need for comprehensive policies and legislative frameworks. Such measures, alongside advancements in technology, hold promise in averting ecological catastrophe in the oceans. Mandated legislation represents a pivotal step towards restoring oceanic health and securing the well‐being of the planet. This work offers an overview of the policy hurdles, legislative initiatives, and prospective strategies for addressing global pollution due to MP. Additionally, this work explores innovative approaches that yield fresh insights into combating plastic pollution across various sectors. Emphasizing the importance of a global plastics treaty, the article underscores its potential to galvanize collaborative efforts in mitigating MP pollution's deleterious effects on marine ecosystems. Successful implementation of such a treaty could revolutionize the plastics economy, steering it towards a circular, less polluting model operating within planetary boundaries. Failure to act decisively risks exacerbating the scourge of MP pollution and its attendant repercussions on both humanity and the environment. Central to this endeavor are the formulation, content, and execution of the treaty itself, which demand careful consideration. While recognizing that a global plastics treaty is not a panacea, it serves as a mechanism for enhancing plastics governance and elevating global ambitions towards achieving zero plastic pollution by 2040. Adopting a life cycle approach to plastic management allows for a nuanced understanding of possible trade‐offs between environmental impact and economic growth, guiding the selection of optimal solutions with socio‐economic implications in mind. By embracing a comprehensive strategy that integrates legislative measures and technological innovations, we can substantially reduce the influx of marine plastic litter at its sources, safeguarding the oceans for future generations.

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Plastic mulch film induced soil microplastic enrichment and its impact on wind-blown sand and dust

Cited by 46 publications

References 43 publications

Effect of Dry Soil Aggregate Size on Microplastic Distribution and Its Implications for Microplastic Emissions Induced by Wind Erosion

Effect of Dry Soil Aggregate Size on Microplastic Distribution and Its Implications for Microplastic Emissions Induced by Wind Erosion

Critical Review of Microplastics in Soil

Beyond surface: Unveiling ecological and economic ramifications of microplastic pollution in the oceans

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