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61,005 resultsShowing papers similar to Microplastics in solar salt: baseline contamination assessment from Goa, India
ClearAssessment 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.
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.
Detection and Characterisation of Microplastics in Food Grade Salts in India
Researchers analyzed 30 brands of food-grade salt available in India and found microplastics in all samples, with sea salt containing 13 to 27 particles per 100 grams and rock salt containing 8 to 29 particles per 100 grams. Particle sizes ranged from about 19 to 1,433 micrometers, and polyethylene terephthalate (PET) was the most commonly identified polymer. The study suggests that salt is a routine dietary source of microplastic exposure for consumers.
Microplastics pollution in salt pans from the Maheshkhali Channel, Bangladesh
Researchers analyzed sea salt samples from eight salt pans in the Maheshkhali Channel of Bangladesh and found microplastic contamination in every sample, with concentrations ranging from 78 to 137 particles per kilogram. Fragments were the most common type, and the dominant polymers identified were terephthalate, polypropylene, polyethylene, and polystyrene. The findings highlight that sea salt represents a potentially significant route of human dietary exposure to microplastics.
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 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 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.
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.
“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.
Proliferation of microplastics in commercial sea salts from the world longest sea beach of Bangladesh
Researchers analyzed 13 commercial sea salt brands from Bangladesh and found an average of 2,676 microplastic particles per kilogram — among the highest levels reported globally — with polystyrene and polyethylene fragments and fibers being the most common types. Based on typical salt consumption, Bangladeshis may ingest over 13,000 microplastic particles per year through salt alone, raising public health concerns.
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.
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.
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.
Quantifying ecological risks of aquatic micro- and nanoplastic
This study analyzed microplastic contamination in table salts from multiple countries and found plastic particles present in the vast majority of samples tested. Sea salt contained the highest levels of microplastics compared to rock and lake salts, reflecting the extent of marine plastic pollution. The findings suggest that table salt is a previously underappreciated pathway for human microplastic ingestion, with estimated annual intake varying by geographic region.
Health risk and ecological risk assessment from microplastic contamination in sea salt : case study in Ban Laem salt field, Phetchaburi, Thailand
Researchers assessed microplastic contamination in Thai sea salt and found hundreds of particles per kilogram across both traditional and plastic salt fields, with polyamide, polyethylene, and polypropylene fragments most common, posing measurable ecological and potential human health risks.
First-ever study uncovers microplastic contamination in Nepalese table salt
In the first study of its kind in Nepal, researchers found microplastics in 100% of table salt samples tested from across the country, with levels ranging from 80 to 1,040 particles per kilogram. The most common shapes were fibers and films made of polyethylene, polypropylene, and nylon. Since salt is consumed daily by nearly everyone, this represents a consistent source of microplastic ingestion for the Nepalese population.
Microplastic contamination in salt pans and commercial salts – A baseline study on the salt pans of Marakkanam and Parangipettai, Tamil Nadu, India
Microplastic contamination was documented in commercial table salts and salt pan waters from two sites in Tamil Nadu, India, with fiber types dominating samples and concentrations reflecting regional coastal and atmospheric plastic pollution inputs.
From sea to table: Assessing microplastic contamination in local and non-local salt in Bali, Indonesia
All 20 brands of table salt tested in Bali, Indonesia contained microplastics, with an average of 173 particles per kilogram. Based on typical salt consumption, residents ingest roughly one microplastic particle per day from salt alone, highlighting how everyday foods serve as a constant low-level source of microplastic exposure.
Microplastic 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.
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.
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.
Microplastic pollution from sea salt: its effect on public health and prevention alternatives - a review
This review examines microplastic contamination in sea salt from countries that export to Indonesia, summarizing polymer types, contamination levels, public health effects of ingested microplastics, and potential prevention strategies to reduce human salt-borne plastic exposure.
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.
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.