Assessing the Ecological Consequences of Biodegradable Plastics: Acute, Chronic and Multigenerational Impacts of Poly-3-hydroxybutyrate Microplastics on Freshwater Invertebrate Daphnia magna

Heliyon, Journal Year: 2024, Volume and Issue: 10(16), P. e36302 - e36302

Published: Aug. 1, 2024

Microplastics, pervasive contaminants in freshwater ecosystems, have raised ecological concerns. Efforts are underway to substitute conventional plastics with biodegradable alternatives that should be more easily decomposed the environment. However, biodegradation of these depends on specific conditions such as temperature, humidity, pH, and microorganisms, which not always met. Consequently, can also fragment generate microplastics, ingested affect biota. In this study, we investigated acute, chronic, multigenerational effects two fractions (particles <63 μm particles <125 μm) poly-3-hydroxybutyrate (P3HB) at varying concentrations inhibition, mortality, reproduction activity, growth invertebrate

Language: Английский

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Dose-dependent effects of poly-3-hydroxybutyrate on soil quality and maize development: A trade-off between soil quality and crop productivity

Ecotoxicology and Environmental Safety, Journal Year: 2025, Volume and Issue: 295, P. 118131 - 118131

Published: April 1, 2025

Poly-3-hydroxybutyrate (P3HB), a biopolymer synthesized by soil bacteria, has emerged as promising tool for sustainable agriculture, offering dual benefits carbon reservoir and an eco-friendly biotechnological product. However, its impact on nutrient dynamics plant uptake remains underexplored. This study evaluated the effects of P3HB biodegradation properties maize (Zea mays) growth in pot experiment with five application rates (0-10 % w/w), both planted unplanted soils. Key analyses included pH, enzyme activity, microbial biomass (MBC), contents biomass, residual (a rarely addressed aspect previous research). The addition influenced biota soils, showing consistent trends across rates. reduced pH (from 7.4 to 7.1 at 1 6.4 10 soil) increased total (by approximately 100 65 soils P3HB). In degraded more quickly, but activities β-glucosidase phosphatase decreased 20 15 %, respectively. Conversely, arylsulphatase urease 80 200 respectively, variants variants. Microbial 500 compared unamended control, while showed increase. Available nutrients (K P) were higher competition (N, P, K) among plants, rhizobiome, P3HB-degrading microbes led above-ground 5.6 g 0.5 per Statistical analysis (Eta-squared values ANOVA) revealed that dose primarily physico-chemical parameters, whereas planting had smaller impact, affecting only MBC. improved properties, particularly increasing MBC carbon. above caused slight acidification, competition, availability, ultimately hindering growth. These results underscore trade-offs between improving quality maintaining crop productivity, highlighting importance optimizing agricultural systems. provides critical insights into biodegradable plastics like P3HB, emphasizing their potential storage polymers cautioning against excessive use production.

Language: Английский

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Microplastic and Nanoplastic in Crops: Possible Adverse Effects to Crop Production and Contaminant Transfer in the Food Chain

Plants, Journal Year: 2024, Volume and Issue: 13(17), P. 2526 - 2526

Published: Sept. 8, 2024

With the increasing amounts of microplastic (MP) deposited in soil from various agricultural activities, crop plants can become an important source MP food products. The last three years studies gave enough evidence showing that plastic form nanoparticles (<100 nm) be taken up by root system and transferred to aboveground plant parts. Furthermore, presence affects growth disturbing metabolic processes plants, thus reducing yields quality. Some adverse effects on have been already described meta-analysis; however, this review provides a comprehensive overview latest findings about possible risks related wide occurrence production safety, including topics changes pesticides behavior pathogen spreading under possibly threaten human health.

Language: Английский

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Efficient activation of UV-driven ozonation using ultrasonics for LDPE decomposition

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 69, P. 106800 - 106800

Published: Dec. 21, 2024

Language: Английский

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Fate of nano/microplastics and associated toxic pollutants in paddy ecosystems: Current knowledge and future perspectives

Deleted Journal, Journal Year: 2024, Volume and Issue: unknown, P. 100013 - 100013

Published: Sept. 1, 2024

Language: Английский

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Microplastic pollution unveiled: the consequences of small unregulated dumping in villages, spanning from soil to water

Environmental Monitoring and Assessment, Journal Year: 2024, Volume and Issue: 196(12)

Published: Nov. 5, 2024

Language: Английский

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