Macro- and microplastic leachates show a slightly toxic effect on seed germination of cotton

Chemosphere, Год журнала: 2023, Номер 335, С. 139081 - 139081

Опубликована: Май 30, 2023

Язык: Английский

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A practical primer for image-based particle measurements in microplastic research

Microplastics and Nanoplastics, Год журнала: 2023, Номер 3(1)

Опубликована: Июль 31, 2023

Abstract Microplastics have been detected in large numbers around the world. Not only their sheer number threatens ecosystems, biodiversity, and human health, but risks are also posed by particle characteristics such as size shape. However, at moment measurement is neither comprehensive nor harmonized, making data ineligible for risk assessment. To change this, we propose an image-based workflow, whose six steps oriented to international guidelines lessons learned from more developed research fields. Best practices sample preparation, image acquisition, digital processing reviewed assure accurate unbiased measurements. On behalf of selected metrics quantitatively characterize both The microplastics should be estimated via maximum Feret’s diameter. Particle shape can measured descriptors, which derive harmonized formulas interpretation. Roundness , solidity elongation were applying hierarchical agglomerative clustering correlation analysis. With these three all currently charaterizable dimensions measured. Finally, present actions quality control well assurance give recommendations method documentation reporting. By our practical primer, microplastic researchers capable providing informative comparable on characteristics. From this improved data, expect see great progress assessment, meta-analyses, theory testing, fate modeling microplastics.

Язык: Английский

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Aging of biodegradable microplastics and their effect on soil properties: Control from soil water

Journal of Hazardous Materials, Год журнала: 2024, Номер 480, С. 136053 - 136053

Опубликована: Окт. 3, 2024

Язык: Английский

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Do biodegradable microplastics cause soil inorganic carbon loss in calcareous soils?

Geoderma, Год журнала: 2023, Номер 439, С. 116679 - 116679

Опубликована: Окт. 4, 2023

The presence of biodegradable microplastics (MPs) has the potential to affect soil pH, and possibly accelerate or inhibit loss inorganic carbon (SIC) in calcareous soils. However, most researchers have focused on release biotic dioxide (CO2) from soils following MP amendments, few studies investigated SIC-derived CO2. In this experiment, three typical MPs were applied amended with 1 % 13C-labeled (99 atom) carbonate, CO2 originating SIC was quantified. total emissions, microbial functional genes involved nitrification denitrification also detected. Throughout contribution carbonate emissions ranged 0.42 3.31 %. impact varied incubation period. At early stage (≤20 days), amendment increased abiotic some cases, positively correlated decomposition SOC MPs. late (20–70 inhibited treatments. Moreover, there negative relationships pH amoA gene ammonia-oxidizing archaea (AOA), but positive correlations ammonia oxidizing bacteria (AOB) nirK nirS encoding nitrate reductase denitrification. Our results indicate that long-term exposure probably regulates H+ process by controlling AOB, then dynamics

Язык: Английский

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Factors controlling the heavy metal ion activity in soil contaminated by microplastics with different mulch durations: Partial least squares path model

Journal of Hazardous Materials, Год журнала: 2023, Номер 464, С. 133027 - 133027

Опубликована: Ноя. 19, 2023

Язык: Английский

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