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61,005 resultsShowing papers similar to FTIR based assessment of microplastic contamination in soil water and insect ecosystems reveals environmental and ecological risks
ClearAutomated μFTIR Imaging Demonstrates Variability in Microplastic Ingestion by Aquatic Insects in a Remote Taiwanese Mountain Stream
Researchers used focal plane array micro-FTIR spectroscopy to characterize microplastic ingestion in aquatic insects from a high-altitude stream (~2,000 m) in a Taiwanese national park. Microplastic ingestion was detected in nearly all insect taxa examined, with polyethylene (65%) dominating and most particles smaller than 500 µm, demonstrating that MP contamination reaches even remote, low-pollution environments.
Microplastic pollution in terrestrial environment: Identification, characterization, and risk assessment in Indore, Central India
Researchers measured microplastic contamination in soil from agricultural and recreational areas in Indore, India. Recreational sites had about six times more microplastic particles than farmland, with most particles made of common plastics like PET and polypropylene. While the ecological risk was rated low for now, the long-term buildup of these particles in soil could eventually pose threats to crops and the food chain.
Occurrence, detection and ecotoxicity of microplastics in selected environments-a systematic appraisal
This review systematically examined recent studies on microplastic pollution across Asian and African environments, covering contamination in soils, sediments, water, and living organisms. Researchers found that FTIR and Raman spectroscopy were the two most commonly used analytical methods for monitoring microplastics. The study highlights that less developed regions face particular challenges with microplastic pollution due to heavy plastic waste and limited waste management infrastructure.
Exposure Pathways and Toxicity of Microplastics in Terrestrial Insects
This review summarizes what is known about how land-dwelling insects encounter, consume, and are affected by plastic pollution. Insects can accumulate microplastics and transfer them to animals higher up the food chain, and exposure has been linked to reduced growth, reproduction, and survival. Since insects play critical roles in pollination and soil health, widespread plastic contamination could have cascading effects on ecosystems and agriculture.
Microplastic pollution in Kolavai Lake, Tamil Nadu, India: Quantification of plankton-sized microplastics in the surface water of lake
Researchers surveyed Kolavai Lake in Tamil Nadu, India, and found microplastics at an average of 6.1 particles per liter across the lake's surface water, with higher concentrations near urban and southern zones. The study used FTIR spectroscopy to confirm the chemical identity of particles and examined how microplastic abundance compares to zooplankton density, finding that microplastics were present at levels that could disrupt plankton feeding. These results highlight how even inland freshwater lakes in India are heavily contaminated, with implications for aquatic food chains and the communities that depend on this water.
A comparative study on the distribution behavior of microplastics through FT-IR analysis on different land uses in agricultural soils
Researchers compared microplastic distribution in agricultural soils under different land uses, including soil mulching, plastic housing, and sewage sludge composting. Using FT-IR analysis, the study found that plastic particles smaller than 100 micrometers were present across all conditions, highlighting the widespread and persistent nature of microplastic contamination in agricultural environments.
Microplastics retrieval from commercial rice brands in india: Characterization, dietary exposure, and risk assessment
Researchers detected microplastics for the first time in commercial rice brands sold in India, using FT-IR and Raman spectroscopy to identify polymer types. The findings raise concerns about dietary microplastic exposure through one of the world's most widely consumed staple foods.
Microplastics monitoring in different environments: separation, physicochemical characterization, and quantification
Researchers systematically monitored microplastic contamination across multiple environments including a wastewater treatment plant, surrounding water bodies, and soils near plastic factories, characterizing shape, size, color, and polymer composition via microscopy and FTIR spectroscopy. They found fragments and fibers to be the most common microplastic shapes in water environments and documented simultaneous contamination across all sampled matrices.
Microplastic pollution in Kolavai Lake, Tamil Nadu, India: quantification of plankton-sized microplastics in the surface water of lake
Researchers quantified microplastic pollution in Kolavai Lake in Tamil Nadu, India, finding an average abundance of 6.1 particles per liter in surface water. They identified polyethylene, polypropylene, and polystyrene as the most common types using infrared spectroscopy. The study also examined the ratio of microplastics to zooplankton, raising concerns about how these tiny particles could enter the food chain when consumed by aquatic organisms.
Microplastics in terrestrial insects, long-horned beetles (Coleoptera: Cerambycidae), from China
Researchers examined microplastic contamination in wild long-horned beetles collected from four cities across China and found microplastics in 68 to 88 percent of specimens. Fibers were the most common shape, with polyethylene terephthalate being the dominant polymer type. The study provides some of the first evidence that microplastics are accumulating in wild terrestrial insects, suggesting widespread contamination of land-based food webs.
Contributions of Fourier transform infrared spectroscopy in microplastic pollution research: A review
This review covers advances in Fourier transform infrared (FTIR) spectroscopy techniques — including chemical imaging — for identifying polymer types in microplastic samples and tracing their fate in different environmental matrices.
Occurrence of Microplastics in the Sediments of an Irish River and Their Effects on Nematode Survival and Biodiversity
Researchers analyzed microplastic contamination in sediments from an Irish river and tested their effects on nematode survival and biodiversity. Using infrared spectroscopy, they characterized the types and concentrations of microplastics present, with particular concern about their ability to absorb persistent organic pollutants. The study found that microplastic exposure affected nematode populations, suggesting potential broader impacts on freshwater sediment ecosystems.
Analysing micro- and nanoplastics with cutting-edge infrared spectroscopy techniques: a critical review
This review evaluates cutting-edge infrared spectroscopy techniques for detecting and analyzing micro- and nanoplastics in environmental and food samples. Better detection methods are crucial for understanding human exposure because they allow scientists to measure smaller particles more accurately, including nanoplastics that are small enough to cross biological barriers and accumulate in human tissues.
Microplastics in human blood: Polymer types, concentrations and characterisation using μFTIR
Scientists analyzed blood from 20 healthy volunteers and found microplastics in 90% of samples, identifying 24 different plastic types including many reported for the first time in blood. The particles were mostly small fragments averaging about 128 micrometers long, and the study also detected hormone-disrupting chemicals called phthalates attached to the plastics. This adds to growing evidence that a wide variety of plastic particles are circulating in human blood.
Applications of Fourier Transform-Infrared spectroscopy in microbial cell biology and environmental microbiology: advances, challenges, and future perspectives
This review covers how Fourier Transform-Infrared (FT-IR) spectroscopy is used in microbiology to identify microorganisms, study biofilms, and monitor environmental interactions. While not directly about microplastics, FT-IR is one of the primary tools scientists use to identify and measure microplastic contamination in environmental samples. The review discusses challenges and future directions that could improve microplastic detection accuracy.
Characteristics of soil microplastics and ecological risks in the Qilian Mountains region, Northeast Tibetan Plateau
Researchers analyzed soil microplastics across different vegetation types in the Qilian Mountains of the Northeast Tibetan Plateau using laser infrared spectroscopy. They found the highest microplastic abundance in shrub soils, with fragments dominating across all vegetation types and polyamide and polyethylene terephthalate as the most common polymers. While basic pollution indices showed manageable levels, hazard-based assessments indicated that specific polymer types present medium to high ecological risks in this remote mountain ecosystem.
Interaction of microplastics and terrestrial and aquatic insects (bioaccumulation, degradation, ecotoxicological effects)
This review synthesizes research on how insects — both aquatic and terrestrial — interact with microplastics, covering ingestion, bioaccumulation, potential degradation, and toxic effects across many species. Insects represent a critical but understudied link in microplastic transfer through food webs: they occupy a pivotal trophic position, and contamination in insects can propagate to birds, fish, and other wildlife that depend on them. The review highlights significant knowledge gaps in terrestrial insect ecotoxicology compared to the better-studied aquatic realm.
Field Survey of Indoor Microplastic in Four Regions of Japan
Researchers surveyed indoor microplastic contamination in residential house dust across four regions of Japan, using micro-FTIR spectroscopy to identify multiple polymer types — including polyester, polyethylene, and polypropylene — in settled floor dust, extending previous Tokyo-focused findings to a national scale.
Assessment of microplastics contamination on agricultural farmlands in central Bangladesh
Agricultural farmlands in central Bangladesh were surveyed for microplastic contamination using microscopy and FTIR spectroscopy, detecting plastics in all 32 samples collected across four sites. Fragments and fibers were the dominant types, with contamination likely linked to irrigation water, plastic mulch use, and atmospheric deposition.
Analisis Mikroplastik Pada Botol Susu Plastik Bayi Dengan Metoda FTIR
This Indonesian study analyzed baby bottle plastics using infrared spectroscopy to detect microplastics released during use. Plastic baby bottles are a known source of microplastic exposure in infants, and identifying the specific polymer types released helps characterize the nature and potential risks of this common exposure.
The contamination of in situ archaeological remains: A pilot analysis of microplastics in sediment samples using μFTIR
Researchers presented what is believed to be the first evidence of microplastic contamination in archaeological sediment samples, using micro-FTIR spectroscopy to identify polymer types and size ranges. The study suggests that microplastics may migrate through archaeological layers over time, potentially compromising the scientific integrity of archaeological deposits and the environmental data they contain.
Microplastic Contamination in Harike Wetland, a Ramsar Site in Punjab: An Environmental Assessment
Researchers collected water samples from Harike Wetland, a Ramsar-protected biodiversity hotspot in Punjab, India, and analyzed them for microplastic presence, morphology, and polymer composition using FTIR and pyrolysis-GC/MS. Microplastics including polyethylene were detected, raising concerns about contamination of this critical freshwater ecosystem and its food chain.
Environmental Risk Assessment of Microplastics in Water and Sediments along Ibi Troughs North-East Nigeria
Researchers conducted an environmental risk assessment of microplastics in water and sediments along the Ibi River in northeast Nigeria, using FTIR to identify polymer types and assessing ecological risk scores across five sampling sites.
Fate and Transport of Microplastics from Water Sources
Researchers analysed microplastics in surface water, groundwater, and bottled drinking water near Chennai, India, detecting 66 particles of fibrous and fragmented shapes across all sample types. SEM-EDX analysis confirmed the presence of heavy metals including chromium, titanium, and barium adhered to microplastic surfaces, while FTIR identified polyethylene terephthalate and polyamide as the dominant polymer types.