Papers

61,005 results
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Article Tier 2

The presence and characteristics of microplastics in local salt industry production in Muna Regency in 2025

Researchers analyzed salt samples from local producers in Muna Regency, Indonesia, and found microplastic contamination in all 12 samples tested. The particles were primarily polyethylene and polypropylene fragments and fibers, with concentrations averaging 0.019 mg/kg. The study indicates that marine pollution and post-production handling both contribute to microplastic presence in locally produced salt.

2026 Zenodo (CERN European Organization for Nuclear Research)
Article Tier 2

The presence and characteristics of microplastics in local salt industry production in Muna Regency in 2025

Researchers analyzed locally produced salt from Muna Regency, Indonesia, and found microplastic contamination in all 12 samples tested. The dominant polymer types were polyethylene and polypropylene in fragment and fiber forms, with contamination attributed to both marine pollution and post-production handling processes such as transportation and packaging.

2026 World Journal of Advanced Research and Reviews
Article Tier 2

The Existence, Characteristics, Sources, and Impact of Microplastics in Salt Products in Indonesia

This systematic literature review described the presence, characteristics, sources, and health impacts of microplastics in Indonesian salt products, finding consistent contamination across regions with PP, PE, and PA as dominant polymer types. The main contamination sources were polluted seawater used in salt production and unmanaged plastic waste near coastal evaporation ponds.

2025 Proceeding of International Seminar and Workshop on Public Health Action
Article Tier 2

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.

2024 Journal of Sea Research 8 citations
Article Tier 2

Keberadaan Mikroplastik dalam Garam: Kajian Literatur pada Beberapa Kasus di Indonesia

This review synthesizes Indonesian studies from 2020 to 2024 on microplastic contamination in salt, finding abundances ranging from 46 particles/kg in coarse salt up to 29,000 particles/kg equivalents, with fibers, films, and fragments being the dominant morphologies and polymer types including PVC, PU, and polyester.

2025 Polygon Jurnal Ilmu Komputer dan Ilmu Pengetahuan Alam
Article Tier 2

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.

2020 E3S Web of Conferences 12 citations
Article Tier 2

Effect of plastic waste pollution in seawater to microplastic contamination in salt fields at Rembang

This study found microplastic particles in sea salt harvested from salt pans in Rembang, Indonesia, tracing their origin to plastic waste in the surrounding seawater. The findings add to growing evidence that microplastics contaminate table salt, representing a direct route of human dietary exposure to plastic particles.

2023 AIP conference proceedings 1 citations
Article Tier 2

Differences in Microplastic Content in Commercial Salt and Salt at the Semiringkai Coastal Local Center in Kupang City and Kupang Regency

Researchers compared microplastic content between commercial salt and locally produced salt from the Semiringkai coastal area in Kupang City and Kupang Regency, Indonesia, finding that both sources contained microplastics with average concentrations that were not statistically significantly different from each other.

2023 Indian Journal of Community Medicine 4 citations
Article Tier 2

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.

2023 International Journal of Environmental & Analytical Chemistry 10 citations
Article Tier 2

Identification of Microdebris in Traditional Salts Processes from Sea Water in Woha-West Nusa Tenggara and Takalar Lama-South Sulawesi

This Indonesian study identified microdebris including microplastics in traditionally produced salt from two regions, finding contamination at multiple stages of the salt-making process. Microplastic contamination in table salt represents a direct route of human ingestion for people who consume salt produced from polluted coastal seawater.

2023 IOP Conference Series Earth and Environmental Science 1 citations
Article Tier 2

Microplastics in water, sediment and salts from traditional salt producing ponds

Researchers found microplastics in water, sediment, and sea salt collected from traditional salt evaporation ponds in Indonesia. The presence of plastic in harvested salt raises food safety concerns, as salt is a widely consumed condiment.

2019 SHILAP Revista de lepidopterología 31 citations
Article Tier 2

Microplastic Contamination in Sea Salt Production Using Geomembrane Plastic

Salt crystallization ponds lined with plastic geomembranes in Indonesia were found to contain microplastics in the harvested salt, though the study found no significant difference in contamination between ponds with and without the plastic liners. This suggests the plastic sheeting used in commercial salt production is not the primary microplastic source — contamination likely enters via the already-polluted seawater used as the raw material, meaning the salt supply is reflecting the broader state of ocean microplastic pollution.

2024 RASAYAN Journal of Chemistry 2 citations
Article Tier 2

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.

2025 Chemosphere 10 citations
Article Tier 2

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.

2020 Archives of Environmental Contamination and Toxicology 114 citations
Article Tier 2

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.

2015 Environmental Science & Technology 1056 citations
Article Tier 2

Influence of various production methods on the microplastic contamination of sea salt produced in Java, Indonesia

Researchers compared microplastic contamination in sea salt produced by different methods — solar evaporation, boiling, and mechanical processing — in Java, Indonesia, finding that production method significantly affected MP levels, with open solar evaporation exposed to air contamination yielding the highest counts.

2021 Environmental Science and Pollution Research 28 citations
Article Tier 2

A study of the microplastic contamination of commercial table salts: A case study in Nigeria

Researchers investigated microplastic contamination in eight commercial table salt brands sold in southwest Nigeria, detecting MPs in all samples with concentrations ranging from 4.0 to 13.8 particles per kilogram, predominantly fibers and fragments of polyethylene and polypropylene.

2023 Environmental Health Engineering and Management 12 citations
Article Tier 2

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.

2024 1 citations
Article Tier 2

High levels of microplastics in commercial salt and industrial salterns in Sri Lanka

All commercial salt products tested in Sri Lanka were contaminated with microplastics, with concentrations ranging from 11 to 193 items/kg in commercial salts and up to 253 items/kg in lab-grade NaCl, and significant variation between three analyzed saltern sites.

2021 Marine Pollution Bulletin 77 citations
Article Tier 2

The Effect of Geomembrane Plastic Usage on Microplastic and Heavy Metal Contamination in Salt Field

This study examined whether geomembrane plastic liners used in Indonesian salt production contribute to microplastic and heavy metal contamination in the finished salt product. The findings raise concerns about the safety of traditionally produced salt and unintended consequences of plastic use in food production.

2023 IOP Conference Series Earth and Environmental Science 2 citations
Article Tier 2

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.

2018 Environmental Science and Pollution Research 175 citations
Article Tier 2

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.

2023 Total Environment Research Themes 21 citations
Article Tier 2

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.

2017 Scientific Reports 623 citations
Article Tier 2

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.

2023 UiTM Institutional Repositories (Universiti Teknologi MARA)