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Contaminação De Hortaliças Por Microplásticos Comercializados Em Itacoatiara, Am, Brasil
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Researchers investigated microplastic contamination in leafy vegetables (lettuce, chives, and coriander) sold in Itacoatiara, Amazonas, Brazil, contributing to limited data on microplastic presence in agricultural produce from the Brazilian Amazon region.
A contaminao por microplsticos em solos agrcolas j foi registrada em diversas partes do mundo.Desta forma, o presente trabalho teve como objetivo investigar a contaminao por microplstico nas hortalias alface, cebolinha e coentro comercializados em
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Effects of Microplastics on Soil and on Lettuce and Tomato, Depending on Type, Size, and Concentration
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An 8-week pot experiment showed that microplastic type, size, and concentration produce species-specific, dose-dependent responses in lettuce and tomato, with tomato reaching 100% mortality at 10% concentration primarily because microplastics disrupted soil water-holding capacity rather than acting as direct chemical toxicants. This physical disruption mechanism means even low microplastic levels in agricultural soils may progressively degrade water availability for crops and threaten food security.
Route of Microplastic Contamination to Agricultural Food
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Researchers reviewed the multiple pathways through which microplastics contaminate agricultural food, including plastic mulch films, sewage sludge fertilizers, irrigation water, and compost, highlighting food safety and agroecosystem health risks that extend from farm to table.
Agro-(Bio)Microplastics: Extraction, Identification, and Quantification Methodologies
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This paper examines methods for extracting, identifying, and quantifying microplastics from biodegradable bioplastics used in agriculture, which fragment into particles that are difficult to distinguish from conventional microplastics. Understanding whether bioplastics truly degrade safely is vital, as agricultural microplastic contamination of soil directly affects food crops consumed by humans.
Contaminação de microplásticos no Lago Canaçari no Município de Itacoatiara (AM)
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Researchers investigated microplastic contamination in sediment samples from Lake Canaçari in Itacoatiara, Amazonas, Brazil. They found no significant variation in total microplastic quantity between samples but detected a significant correlation between contamination levels and seasonal periods (rising versus falling water) and sampling zones.
The effects of different types microplastics on soil properties and the biochemistry of Chinese cabbage under different dosages and exposure times
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Microplastics from packaging and other plastic waste are building up in farm soils, and this study found that they can change soil quality and stress out crops like Chinese cabbage, altering nutrients, water content, and the plant's natural defense systems, especially at high concentrations. While this research looked at soil and plant health rather than testing the cabbage for human safety, it's a reminder that the plastic pollution we create doesn't just disappear, it may be quietly affecting the soil that grows our food.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.