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20 resultsShowing papers similar to Detection and Characterisation of Microplastics in Food Grade Salts in India
ClearDetection 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.
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.
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.
Microplastic contamination in edible sea salt from the largest salt-producing states of India
Microplastics were found in edible sea salt samples from the major salt-producing states of India, with crystal salt containing lower concentrations than powdered salt, and fibers and fragments as the dominant types, confirming that sea salt is a source of human dietary microplastic exposure in South Asia.
Assessment of microplastics in edible salts from solar saltpans and commercial salts
Researchers analyzed microplastic contamination in sea salts from solar salt pans in Tamil Nadu, India, and several commercial salt brands. The study confirmed the presence of microplastics in all salt pan samples and two commercial salt brands, with fewer than 350 polymer fragments per sample representing multiple polymer types. These findings suggest that sea salt production is a pathway for microplastic contamination to reach human diets.
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.
Microplastics in Salt of Tuticorin, Southeast Coast of India
Researchers extracted and characterized microplastics from 14 brands of food-grade sea salts and bore-well salts from Tuticorin, India, finding contamination in both salt types with fibers and fragments as dominant forms and polyethylene as the most common polymer.
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.
Detection of microplastic contamination in table salts in Padang City, Indonesia, and control strategies for choosing healthy salt
Researchers analyzed microplastic contamination in ten brands of table salt commonly consumed in Padang, Indonesia. The study found microplastic particles in all brands tested, ranging from 30 to 510 particles per kilogram, with fragments being the most common shape, suggesting that salt products represent a meaningful 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.
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 contamination of table salts from Taiwan, including a global review
Researchers analyzed table salt products sold in Taiwan for microplastic contamination and detected an average of nearly 10 microplastic particles per kilogram of salt. Polypropylene and polyethylene were the most commonly identified polymer types. The study includes a global comparison showing that microplastic contamination of table salt is a widespread phenomenon, representing a consistent low-level dietary exposure pathway for consumers.
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.
Incidence and exposure to microplastics in table salt present in the Iran market
Scientists tested 40 brands of table salt sold in Iran and found microplastics in every single sample, with sea salt containing the highest levels. The estimated daily intake from salt alone was up to 174 microplastic particles per person. This adds to growing evidence that table salt is a consistent dietary source of microplastic exposure for people worldwide.
Microplastics in Table Salts: Sources, Abundance, Types, and Consumption– A Review
This global review synthesizes research on microplastic contamination in table salts, examining sources, abundance, particle types, and estimated human consumption, finding that sea salts tend to have higher microplastic loads than rock or lake salts.
Microplastic pollution in commercial salt for human consumption: A review
This review examines microplastic contamination in commercial table salt from 128 brands across 38 countries on five continents. Researchers found that while microplastic concentrations in salt are lower than in some other food products like mussels, salt represents a significant long-term daily exposure route for the general population. The study highlights that commercial salt contaminated with microplastics may contribute to cumulative human exposure alongside other dietary and environmental sources.
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.
Contamination of table salts from Turkey with microplastics
Sixteen brands of table salt sold in Turkish markets — including sea, lake, and rock salts — were found to contain microplastics, with the highest concentrations in sea salt. The study adds to global evidence of microplastic contamination in commercially sold salt and indicates widespread human dietary exposure through this common food ingredient.
A comprehensive pyrolysis-gas chromatography/mass spectrometry analysis for the assessment of microplastics in various salts
Scientists measured microplastic contamination in different types of edible salt using advanced chemical analysis and found that sea salt contained the most microplastics, roughly 17 times more than rock salt. Polyethylene, polypropylene, and PET made up the vast majority of particles found, and some contamination came from the salt packaging itself. Based on average salt consumption, a person using sea salt could be exposed to over 2,300 micrograms of microplastics per year through salt alone.
Contamination of table salts from Turkey with microplastics Part A Chemistry, analysis, control, exposure & risk assessment
This study analyzed 16 brands of table salt from Turkish markets and found microplastics in most samples, with concentration varying by salt type and source. The findings add to growing global evidence that microplastics have entered the human food chain through commercial sea and lake salt.