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61,005 resultsShowing papers similar to Microplastic Presence in Commercial Sea Salt: Sampling and Quantification Challenges
ClearMicroplastic contamination in commercial salt: An issue for their sampling and quantification
Researchers analyzed microplastic contamination in commercial sea salt from three Italian salterns and found an average of approximately 1,653 microplastic particles per kilogram of salt. The study highlights important methodological considerations for sampling and quantification, noting that the physical characteristics and polymer types of microplastics varied across sampling locations.
Variation and Uncertainty of Microplastics in Commercial Table Salts: Critical Review and Validation
A critical review of microplastic data from commercial table salts across many studies found high variability driven by inconsistent analytical methods, and validation experiments revealed that size cutoffs and detection methods significantly affect reported contamination levels.
Microplastics in European sea salts – An example of exposure through consumer choice and of interstudy methodological discrepancies
Researchers analyzed 13 European sea salts and found microplastics in all of them, with industrially harvested salts containing more particles than traditionally harvested ones. They estimated that a person absorbs about 14 micrograms of microplastics annually from all salt consumption, with a quarter attributable to choosing sea salt specifically. The study also found that differences in research methods across studies make it difficult to compare microplastic levels in salt worldwide.
Global Pattern of Microplastics (MPs) in Commercial Food-Grade Salts: Sea Salt as an Indicator of Seawater MP Pollution
A global analysis of commercial sea salts found microplastics in samples from 21 countries, with the highest concentrations in sea salts from Asia and the lowest in rock and lake salts. The findings suggest that sea salt can serve as an indicator of seawater microplastic pollution levels in surrounding regions.
Extraction of microplastics from commonly used sea salts in India and their toxicological evaluation
Scientists extracted and characterized microplastics from commercial sea salts sold in India, finding contamination across brands and conducting toxicological tests showing potential harm to marine organisms.
Detection and Characterization of Microplastics in Commercial Salts in India
Researchers detected and characterized microplastics in commercial salts available in India, including rock salt, sea salt, and table salt varieties. The study found widespread microplastic contamination across salt types, raising food safety concerns given the ubiquity of salt as a dietary staple.
Nanoplastics Detected in Commercial Sea Salt
Researchers detected nanoplastic particles in commercial sea salt samples using advanced analytical techniques, demonstrating that a widely consumed everyday food product is contaminated with plastic nanoparticles derived from ocean and atmospheric pollution. The findings raise concerns about dietary nanoplastic exposure for people of all ages through routine salt consumption.
Microplastic contamination of salt intended for human consumption: a systematic review and meta-analysis
This systematic review and meta-analysis examined microplastic contamination in table salt from around the world. It found that microplastics are present in most salt products intended for human consumption, with sea salt generally containing more particles than rock or lake salt, representing a consistent source of dietary microplastic exposure.
Contamination of Indian sea salts with microplastics and a potential prevention strategy
All eight brands of Indian sea salt tested were found to contain microplastics, with concentrations ranging widely across brands, and the study proposed using improved salt harvesting methods to reduce contamination. The findings add to global evidence of widespread microplastic contamination in commercially sold sea salt, with direct implications for human dietary exposure.
Litter & microplastics features in table salts from marine origin: Italian versus Croatian brands
Researchers analyzed microplastic content in marine-origin table salts from Italian and Croatian commercial brands, finding microplastic contamination in all tested products with no macroplastic or mesoplastic particles recovered, and characterizing the size, shape, and polymer types present.
Microplastic Pollution in Table Salts from China
Researchers analyzed table salts produced in China and found microplastics contaminating samples from multiple salt types, suggesting that salt production processes and source water quality influence the extent of microplastic contamination in a common food ingredient.
Microparticles in Table Salt: Levels and Chemical Composition of the Smallest Dimensional Fraction
Analysis of commercially available table salts found microplastic particles and non-synthetic micro-particles in multiple brands, with the smallest size fractions being most abundant and most difficult to identify. The study raises concerns about human dietary exposure to microplastics through a universally consumed food product.
Evaluation of the presence of insoluble particles and microplastics in sea salts in Brazil
Researchers analyzed sea salts from Brazilian markets for the presence of microplastics and other insoluble particles. The detection of microplastics in commercially sold sea salt raises consumer exposure concerns, as salt is used universally in cooking and food processing.
Microplastics in salt: A critical review of contamination, analytical methodologies, and health implications
This critical review examined microplastic contamination in salt products worldwide, covering analytical methods, polymer types, and potential health implications. Researchers found that polyethylene, polypropylene, and PET are the most commonly identified polymers in salt, with fibers being the dominant form, and emphasized the need for standardized detection protocols to enable meaningful comparisons across studies.
The presence of microplastics in commercial salts from different countries
Researchers analyzed 17 commercial salt brands from eight countries and found microplastic particles in all but one, with concentrations ranging from 1 to 10 particles per kilogram. The most common plastics were polypropylene and polyethylene, appearing mainly as fragments. While the estimated human intake from salt alone appears minimal, the study confirms that microplastics have infiltrated yet another everyday food product.
Preliminary investigation of microplastics in the production process of sea salt sourced from the Bohai Sea, China, using an optimised and consistent approach
Researchers tracked microplastic contamination through each stage of sea salt production in China, from seawater to refined salt. Microplastics were present throughout the process, with concentrations decreasing at later stages, but not eliminated entirely—highlighting table salt as a pathway for human microplastic ingestion.
From Sea Water to Salt Crystals: An Onsite Investigation of Microplastics in a Conventional Sea Salt Farming System
Researchers conducted on-site sampling of sea salt crystals and traced microplastic contamination at multiple stages from seawater through to the final salt product. Microplastics were detected throughout the production chain, highlighting potential dietary exposure from table salt.
Risk assessment of microplastic in commercial salt sold in Malaysia
Researchers conducted a risk assessment of microplastics in commercial table salt sold in Malaysia, finding that contaminated seawater used during sea salt production introduces microplastics into a widely consumed daily food ingredient with potential adverse health effects.
Microplastic contamination and risk assessment in salts from India And Sri Lanka
Researchers analyzed microplastic contamination in commonly available salts from India and Sri Lanka, including sea salt, rock salt, and refined table salt. Microplastics were detected across most salt varieties, indicating that this staple condiment is a dietary route of human microplastic exposure in South Asia.
Efficacy of Microplastic Separation Techniques on Seawater Samples: Testing Accuracy Using High-Density Polyethylene
Scientists tested four common methods for separating microplastics from seawater samples and found that each method recovered different amounts and types of particles. Standardizing separation methods is critical for making microplastic concentration data comparable across different studies.
A new analytical technique for the extraction and quantification of microplastics in marine sediments focused on easy implementation and repeatability
This paper describes a new analytical method for extracting and quantifying microplastics from sediment using common laboratory equipment and salt solutions, making microplastic analysis more accessible to laboratories without specialized instruments. Standardized, low-cost methods are essential for expanding the geographic and temporal coverage of microplastic monitoring.
“Microplastic seasoning”: A study on microplastic contamination of sea salts in Bangladesh
Researchers tested 18 brands of commercial sea salt from Bangladesh and found microplastics present in every sample, with an average of about 472 particles per kilogram. The study suggests that sea salt represents a dietary pathway for human microplastic exposure, with fibers and fragments being the most commonly detected particle types.
Microplastic contamination in Indonesian consumable salts
Researchers analyzed both traditionally produced and commercial branded sea salts from Indonesia and found microplastics in all samples tested. Traditionally produced salts contained the highest contamination levels, with up to 3,753 particles per kilogram, though branded salts also contained significant amounts. The study indicates that sea salt is a notable dietary source of microplastic exposure for consumers.
Microplastic presence in commercial marine sea salts: A baseline study along Tuticorin Coastal salt pan stations, Gulf of Mannar, South India
Twenty-five sea salt samples from Tuticorin coastal salt pans in India were analyzed for microplastics, with particles under 100 μm comprising 60% of contaminants and polypropylene and polyethylene as the dominant polymers. The study establishes a baseline for microplastic contamination in commercially harvested sea salt from South India.