Occurrence of microplastic in livestock and poultry manure in South China

Wu, Ruizhu; Cai, Yumeng; Chen, Ying-Xi; Yang, Yiwen; Xing, Si-Cheng; Liao, Xindi

doi:10.1016/j.envpol.2021.116790

Cited by 121 publications

(27 citation statements)

References 44 publications

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“…A large number of studies have shown that microplastics are ubiquitous in nature, are widely distributed in both aquatic [39] and terrestrial environments [40], and are found incorporated in the food chain [41]. Microplastics are also detected in human consumables, such as drinking water [11], rice [42], livestock [9,10], seafood [12], and salt [13]. In addition, microplastics are found in various hygiene products [43,44] and cosmetics [45].…”

Section: Resultsmentioning

confidence: 99%

“…Because of their small size, abundance, and durability, microplastics become widespread and ubiquitous in the environment [4]. In terrestrial environments, microplastics can be found abundantly in soil [5] and can be detected in various organisms, including earthworms [6], snails [7], human pets [8], and various livestock [9,10]. Microplastics are also entering the human food chain and can be found in drinking water and food consumed by humans [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

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Microplastic Contamination in the Human Gastrointestinal Tract and Daily Consumables Associated with an Indonesian Farming Community

et al. 2021

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Plastic is one of the most abundant pollutants in the environment. As a result of natural physical processes, large plastic waste is degraded into microsized particles (<5 mm) called microplastics. Because of their size, abundance, and durability, microplastics are widely distributed in the environment, contaminating food and water intended for human consumption. The extent of microplastic contamination in the human body is still unclear because there are few studies concerning microplastic contamination in human specimens and, in most studies, data were collected from city dwellers. Despite having the fourth largest population and being the fourth largest plastic waste producer in the world and second largest plastic polluter in the ocean, there are currently no data with respect to microplastic exposure for the Indonesian population. Several studies have reported on microplastic contamination in seafood and freshwater organisms from Indonesia, and it is likely that microplastics have contaminated the gastrointestinal tracts of Indonesians. Using Raman spectroscopy, we detected microplastic contamination in 7 out of 11 analyzed stool samples collected from a farming community in the highland village of Pacet, East Java, Indonesia. Polypropylene (PP) was the most abundant and prevalent type of microplastic observed, and it was found in four of the positive samples with an average concentration of 10.19 microgram per gram of feces (μg/g). Microplastics were also detected at high concentrations in tempeh (soybean cake, a staple protein source for Indonesians), table salts, and toothpaste, which were regularly consumed and used by the study participants. PP was particularly high in table salts (2.6 μg/g) and toothpaste (15.42 μg/g), suggesting that these products might contribute to the gastrointestinal contamination in the studied population. This pilot study indicated microplastic contamination in the rural Indonesian population and in their daily consumables, demonstrating the far-reaching extent of microplastic pollution beyond urban areas.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microplastic Contamination in the Human Gastrointestinal Tract and Daily Consumables Associated with an Indonesian Farming Community

et al. 2021

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“…The occurrence of microplastics in livestock and manure has been reported in 19 different farms in South China, where pigs, poultry, and cows are raised [ 204 ]. PP and PE in colorful fibers and fragment types were the most abundant MPs.…”

Section: Microplastic Transport In the Food Web And Consequent Human Exposurementioning

confidence: 99%

Microplastics in the Environment: Intake through the Food Web, Human Exposure and Toxicological Effects

Pironti

Ricciardi

Motta

et al. 2021

Toxics

159

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Recently, studies on microplastics (MPs) have increased rapidly due to the growing awareness of the potential health risks related to their occurrence. The first part of this review is devoted to MP occurrence, distribution, and quantification. MPs can be transferred from the environment to humans mainly through inhalation, secondly from ingestion, and, to a lesser extent, through dermal contact. As regards food web contamination, we discuss the microplastic presence not only in the most investigated sources, such as seafood, drinking water, and salts, but also in other foods such as honey, sugar, milk, fruit, and meat (chickens, cows, and pigs). All literature data suggest not-negligible human exposure to MPs through the above-mentioned routes. Consequently, several research efforts have been devoted to assessing potential human health risks. Initially, toxicological studies were conducted with aquatic organisms and then with experimental mammal animal models and human cell cultures. In the latter case, toxicological effects were observed at high concentrations of MPs (polystyrene is the most common MP benchmark) for a short time. Further studies must be performed to assess the real consequences of MP contamination at low concentrations and prolonged exposure.

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“…FTIR and Raman spectroscopy can also be used for the identification of MPs, where FTIR can analyze particles having a size >500 mm but with a disadvantage that it is unable to analyze wet samples and requires completely dried samples [9]. Also, irregularly shaped MPs perhaps generate extra noise and unexplained spectra.…”

Section: Visual Identification and Detection Of Mpsmentioning

confidence: 99%

Microplastics accumulation in agricultural soil: Evidence for the presence, potential effects, extraction, and current bioremediation approaches

Yadav¹,

Dhanger²,

Sharma³

2022

J App Biol biotech

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Decades ago, microplastic presence was corroborated in aquatic ecosystem, but revelations from current studies indicate microplastics (MPs) as ubiquitous environmental concern and demonstrate our plasticized life, because of microplastic existent in food, air, water, and soil. Existence of MPs in terrestrial ecosystem is long recognized now and additionally, all the evidence that has been found for microplastic entering the farm soils indicated that they are gradually accumulating in the agricultural soil. While previous studies focused extensively on marine systems, the increasing toxicity of MPs in agricultural cultivated soils and the aspects of MPs being accumulated causing bio-toxification are being looked upon presently. They potentially damage the yield of crop plants making their roots unable to uptake water and nutrients from the soil by accumulating near the roots. MPs have already invaded the terrestrial food chain and they have been detected in excreta of livestock animals along with earthworms and crop plants. MPs are abundant in farm soil that has interacted with sewage-sludge, plastic mulching sheets, organic fertilizers, and vermicompost for a long duration. This review focuses on current evidence of microplastic accumulation in farm soil, thereby enlightening the potential damages to crop plants, soil properties, soil microbes while ultimately reaching humans via the food chain. It also covers the recent advances for soil microplastic extraction, treatment, and possible bioremediation strategies.

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Occurrence of microplastic in livestock and poultry manure in South China

Cited by 121 publications

References 44 publications

Microplastic Contamination in the Human Gastrointestinal Tract and Daily Consumables Associated with an Indonesian Farming Community

Microplastic Contamination in the Human Gastrointestinal Tract and Daily Consumables Associated with an Indonesian Farming Community

Microplastics in the Environment: Intake through the Food Web, Human Exposure and Toxicological Effects

Microplastics accumulation in agricultural soil: Evidence for the presence, potential effects, extraction, and current bioremediation approaches

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