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Cui S, Yu W, Han X, Hu T, Yu M, Liang Y, Guo S, Ma J, Teng L, Liu Z. Factors influencing the distribution, risk, and transport of microplastics and heavy metals for wildlife and habitats in "island" landscapes: From source to sink. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:134938. [PMID: 38901262 DOI: 10.1016/j.jhazmat.2024.134938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 06/04/2024] [Accepted: 06/14/2024] [Indexed: 06/22/2024]
Abstract
Microplastics (MPs) and heavy metals (HMs) are important pollutants in terrestrial ecosystems. In particular, the "island" landscape's weak resistance makes it vulnerable to pollution. However, there is a lack of research on MPs and HMs in island landscapes. Therefore, we used Helan Mountain as the research area. Assess the concentrations, spatial distribution, ecological risks, sources, and transport of MPs and HMs in the soil and blue sheep (Pseudois nayaur) feces. Variations in geographical distribution showed a connection between human activity and pollutants. Risk assessment indicated soil and wildlife were influenced by long-term pollutant polarization and multi-element inclusion (Igeo, Class I; PHI, Class V; RI (MPs), 33 % Class II, and 17 % Class IV; HI = 452.08). Source apportionment showed that tourism and coal combustion were the primary sources of pollutants. Meanwhile, a new coupling model of PMF/Risk was applied to quantify the source contribution of various risk types indicated transportation roads and tourism sources were the main sources of ecological and health risks, respectively. Improve the traceability of pollution source risks. Furthermore, also developed a novel tracing model for pollutant transportation, revealing a unique "source-sink-source" cycle in pollutant transportation, which provides a new methodological framework for the division of pollution risk areas in nature reserves and the evaluation of spatial transport between sources and sinks. Overall, this study establishes a foundational framework for conducting comprehensive risk assessments and formulating strategies for pollution control and management.
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Affiliation(s)
- Shuang Cui
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, China
| | - Wei Yu
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, China; Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - XingZhi Han
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, China; Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Tianhua Hu
- Ningxia Helan Mountain National Nature Reserve Administration, Yinchuan 750021, China
| | - Mengqi Yu
- Forest Pest Control and Quarantine Station of Ningxia Hui Autonomous Region, Yinchuan 750021, China
| | - Yongliang Liang
- Ningxia Helan Mountain National Nature Reserve Administration, Yinchuan 750021, China
| | - Songtao Guo
- The College of Life Sciences, Northwest University, Shaanxi Key Laboratory for Animal Conservation, Xi'an 710069, China
| | - Jinlian Ma
- Inner Mongolia Helan Mountain National Natural Nature Reserve Administration, Alxa League, 750306, China
| | - Liwei Teng
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, China; Key Laboratory of Conservation Biology, National Forestry and Grassland Administration, Harbin 150040, China.
| | - Zhensheng Liu
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, China; Key Laboratory of Conservation Biology, National Forestry and Grassland Administration, Harbin 150040, China.
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Corte Pause F, Urli S, Crociati M, Stradaioli G, Baufeld A. Connecting the Dots: Livestock Animals as Missing Links in the Chain of Microplastic Contamination and Human Health. Animals (Basel) 2024; 14:350. [PMID: 38275809 PMCID: PMC10812800 DOI: 10.3390/ani14020350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/17/2024] [Accepted: 01/20/2024] [Indexed: 01/27/2024] Open
Abstract
Plastic pollution is a global diffuse threat, especially considering its fragmentation into microplastics (MPs) and nanoplastics (NPs). Since the contamination of the aquatic environment is already well studied, most studies have now focused on the soil. Moreover, the number of studies on the exposure routes and toxic effects of MNPs in humans is continuously increasing. Although MNPs can cause inflammation, cytotoxicity, genotoxicity and immune toxicity in livestock animals, which can accumulate ingested/inhaled plastic particles and transfer them to humans through the food chain, research on this topic is still lacking. In considering farm animals as the missing link between soil/plant contamination and human health effects, this paper aims to describe their importance as carriers and vectors of MNP contamination. As research on this topic is in its early stages, there is no standard method to quantify the amount and the characteristics of MNPs in different matrices. Therefore, the creation of a common database where researchers can report data on MNP characteristics and quantification methods could be helpful for both method standardization and the future training of an AI tool for predicting the most abundant/dangerous polymer(s), thus supporting policy decisions to reduce plastic pollution and perfectly fitting with One Health principles.
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Affiliation(s)
- Francesca Corte Pause
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Via Delle Scienze 206, 33100 Udine, Italy; (F.C.P.); (S.U.)
| | - Susy Urli
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Via Delle Scienze 206, 33100 Udine, Italy; (F.C.P.); (S.U.)
| | - Martina Crociati
- Department of Veterinary Medicine, University of Perugia, Via S. Costanzo 4, 06126 Perugia, Italy;
- Centre for Perinatal and Reproductive Medicine, University of Perugia, 06129 Perugia, Italy
| | - Giuseppe Stradaioli
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Via Delle Scienze 206, 33100 Udine, Italy; (F.C.P.); (S.U.)
| | - Anja Baufeld
- Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
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Airs PM, Tinsley JHI, Mvula W, Ventura-Cordero J, Takahashi T, Nalivata P, van Wyk JA, Morgan ER, Safalaoh ACL. Prevalence of Plastic and Hardware Foreign Bodies among Goats at Malawi Markets. Animals (Basel) 2024; 14:147. [PMID: 38200878 PMCID: PMC10778286 DOI: 10.3390/ani14010147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 12/18/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024] Open
Abstract
Smallholder goat production plays a major role in rural livelihoods and food security in Malawi, but suffers from drastic and unpredictable production losses. While goat production is closely linked to small-scale local markets for slaughter and butchering, the perspectives of butchers and their potential as a source of animal health information are largely untapped. Butchers can provide insights into goat health status at slaughter as well as issues that go unseen before slaughter, such as the presence of indigestible foreign bodies (IFBs). IFBs include solid materials such as plastics and hardware (metals, stones, and other hard objects) that cause foreign body syndrome and can lead to impaction, oedema, malnutrition, and death. To estimate the presence of IFBs, 150 market stand butchers were surveyed across five districts in Malawi, focusing on a distinction between hardware and single-use plastics, which are still widely present in Malawi despite bans on production. Most butchers found plastic IFBs (80.7%), with over half (56.7%) reporting plastic IFBs recently among the past five slaughters. Hardware IFBs were less common, reported by 45.3% of butchers. While some butchers commented on the impact of IFBs on meat quality metrics ex-post, the majority observed no differences. While butchers unanimously considered health to be an important characteristic when sourcing goats, 70.7% consider injury status to be less important or not important. Overall, this study highlights the issue of anthropogenic waste pollution on goat production in Malawi and demonstrates the potential for the surveillance of goat health at market.
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Affiliation(s)
- Paul M. Airs
- Biological Sciences, Queen’s University of Belfast, 19 Chlorine Gardens, Belfast BT9 5DL, UK; (J.H.I.T.); (J.V.-C.); (E.R.M.)
| | - Jonathan H. I. Tinsley
- Biological Sciences, Queen’s University of Belfast, 19 Chlorine Gardens, Belfast BT9 5DL, UK; (J.H.I.T.); (J.V.-C.); (E.R.M.)
| | - Winchester Mvula
- Animal Science Department, Lilongwe University of Agriculture and Natural Resources (LUANAR), Lilongwe P.O. Box 219, Malawi (P.N.)
| | - Javier Ventura-Cordero
- Biological Sciences, Queen’s University of Belfast, 19 Chlorine Gardens, Belfast BT9 5DL, UK; (J.H.I.T.); (J.V.-C.); (E.R.M.)
| | - Taro Takahashi
- Agri-Food and Biosciences Institute, Hillsborough, Co. Down, Northern Ireland BT16 6DR, UK
| | - Patson Nalivata
- Animal Science Department, Lilongwe University of Agriculture and Natural Resources (LUANAR), Lilongwe P.O. Box 219, Malawi (P.N.)
| | - Jan A. van Wyk
- Department of Veterinary Tropical Diseases, University of Pretoria, Pretoria Private Bag X20, South Africa
| | - Eric R. Morgan
- Biological Sciences, Queen’s University of Belfast, 19 Chlorine Gardens, Belfast BT9 5DL, UK; (J.H.I.T.); (J.V.-C.); (E.R.M.)
| | - Andrews C. L. Safalaoh
- Animal Science Department, Lilongwe University of Agriculture and Natural Resources (LUANAR), Lilongwe P.O. Box 219, Malawi (P.N.)
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Mazzoleni S, Magni S, Tretola M, Luciano A, Ferrari L, Bernardi CEM, Lin P, Ottoboni M, Binelli A, Pinotti L. Packaging contaminants in former food products: Using Fourier Transform Infrared Spectroscopy to identify the remnants and the associated risks. JOURNAL OF HAZARDOUS MATERIALS 2023; 448:130888. [PMID: 36746085 DOI: 10.1016/j.jhazmat.2023.130888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 01/16/2023] [Accepted: 01/26/2023] [Indexed: 06/18/2023]
Abstract
Food waste and feed-food competition can be reduced by replacing traditional feed ingredients such as cereals, with former food products (FFPs) in livestock diets. These foodstuffs, initially intended for human consumption, are recovered, mechanically unpacked, and then ground. Despite this simple and inexpensive treatment, packaging contaminants (remnants) are often unavoidable in the final product. To maximize the exploitation of FFPs and to minimize the associated risks, packaging remnants need to be quantified and characterized. This study tested the efficacy of the Fourier Transform Infrared Spectroscopy coupled with an optical microscope (μFT-IR) in identifying packaging remnants in 17 FFP samples collected in different geographical areas. After a visual sorting procedure, presumed packaging remnants were analyzed by μFT-IR. The results showed significant differences (p < 0.05) between the FFPs in terms of the total number of foreign particles found (plastics, cellulose and aluminum remnants, ranging from 4 to 19 particles per 20 g fresh matter), and also regarding the number of cellulose and aluminum particles. These data clearly demonstrate the need for sensitive instruments that can characterize the potential contaminants in the FFPs. This would then help to reduce the overestimation of undesirable contaminants typical of simple visual sorting, which is currently the most common method.
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Affiliation(s)
- Sharon Mazzoleni
- Department of Veterinary Medicine and Animal Science, DIVAS, University of Milan, 26900 Lodi, Italy
| | - Stefano Magni
- Department of Biosciences, DBS, University of Milan, 20133 Milan, Italy.
| | - Marco Tretola
- Department of Veterinary Medicine and Animal Science, DIVAS, University of Milan, 26900 Lodi, Italy; Agroscope, Institute for Livestock Sciences, La Tioleyre 4, 1725 Posieux, Switzerland
| | - Alice Luciano
- Department of Veterinary Medicine and Animal Science, DIVAS, University of Milan, 26900 Lodi, Italy
| | - Luca Ferrari
- Department of Veterinary Medicine and Animal Science, DIVAS, University of Milan, 26900 Lodi, Italy
| | | | - Peng Lin
- Department of Veterinary Medicine and Animal Science, DIVAS, University of Milan, 26900 Lodi, Italy
| | - Matteo Ottoboni
- Department of Veterinary Medicine and Animal Science, DIVAS, University of Milan, 26900 Lodi, Italy
| | - Andrea Binelli
- Department of Biosciences, DBS, University of Milan, 20133 Milan, Italy
| | - Luciano Pinotti
- Department of Veterinary Medicine and Animal Science, DIVAS, University of Milan, 26900 Lodi, Italy; CRC I-WE (Coordinating Research Centre: Innovation for Well-Being and Environment), University of Milan, 20133 Milan, Italy
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5
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Sadan M, El-Khodery S, Almatroodi S, Alsobayil F, El-Shafaey ES. Diagnosing and treating esophageal obstruction in camels ( Camelus dromedarius). Vet World 2023; 16:735-742. [PMID: 37235168 PMCID: PMC10206966 DOI: 10.14202/vetworld.2023.735-742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 02/15/2023] [Indexed: 05/28/2023] Open
Abstract
Background and Aim Esophageal obstruction is a common occurrence and a serious condition in camels. This study aimed to assess the effects of mineral deficiency on esophageal obstruction rates in dromedary camels and describe their clinical presentation and treatment outcomes. Materials and Methods Twenty-eight camels were allocated to two groups. Group 1 (control) was composed of 10 sound camels. Group 2 included 18 camels with esophageal obstruction which were based on clinical and imaging evaluations. Hematobiochemical examinations in control and affected camels were compared and statistically analyzed. Results In camels with esophageal obstruction when compared with controls, hematological analyses showed significant increases (p < 0.05) in neutrophils, lymphocytes, and monocytes, along with significantly decreased total white blood counts. Aspartate transaminase, alanine transaminase, alkaline phosphatase, creatine phosphokinase, glucose, albumin, creatinine, and blood urea nitrogen concentrations were significantly higher in affected camels when compared with controls. Furthermore, gamma-glutamyl transferase, globulin, sodium, chloride, cobalt, iron, manganese, and selenium concentrations were significantly reduced. Affected camels were treated by stomach tube or surgery and were completely recovered, except for one camel with an esophageal fistula. Conclusion A lack of trace elements could have a significant role in esophageal obstruction in dromedaries. Clinical, ultrasonographic, and hematobiochemical evaluations are useful for the accurate diagnosis, prognosis, and treatment of esophageal obstruction in camels.
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Affiliation(s)
- Madeh Sadan
- Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, Qassim University, Qassim, P.O. Box 51452, Saudi Arabia
- Department of Surgery, Anesthesiology, and Radiology, Faculty of Veterinary Medicine, South Valley University, Qena 83523, Egypt
| | - Sabry El-Khodery
- Department of Internal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Saleh Almatroodi
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Qassim, P.O Box 51452, Saudi Arabia
| | - Fahd Alsobayil
- Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, Qassim University, Qassim, P.O. Box 51452, Saudi Arabia
| | - El-Sayed El-Shafaey
- Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, Qassim University, Qassim, P.O. Box 51452, Saudi Arabia
- Department of Surgery, Anesthesiology, and Radiology, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
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6
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Ayala F, Zeta-Flores M, Ramos-Baldárrago S, Tume-Ruiz J, Rangel-Vega A, Reyes E, Quinde E, De-la-Torre GE, Lajo-Salazar L, Cárdenas-Alayza S. Terrestrial mammals of the Americas and their interactions with plastic waste. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:57759-57770. [PMID: 36971935 PMCID: PMC10040927 DOI: 10.1007/s11356-023-26617-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 03/19/2023] [Indexed: 05/07/2023]
Abstract
Plastics have brought many benefits to society, but their mismanagement has turned them into a serious environmental problem. Today, the effects of plastic waste on wildlife are becoming increasingly evident. Since studies on plastic pollution have focused on species in marine ecosystems, here we review current knowledge on interactions between terrestrial mammals and plastic waste in the countries of the Americas, which is a global hotspot of mammalian biodiversity and in turn has, among its member countries, nations with high per capita generations of plastic waste globally. We identified 46 scientific articles documenting plastic ingestion in 37 species and four species that used plastic waste for nest or burrow construction. Of the 46 investigations, seven focused on plastic contamination, while the others reported on the presence of plastics in wildlife, even though this was not the primary focus of the research. However, these publications lack analytical methods commonly used in plastic studies, and only one study applied a standardized methodology for plastic detection. Therefore, in general, plastic pollution research on terrestrial mammals is limited. We extend several recommendations such as designing methodologies that are adapted to terrestrial mammals for the identification of plastics in fecal matter or gastrointestinal contents, carrying out species-specific analyzes on the impacts of plastics in nests or burrows, and giving further attention to this understudied issue and taxa.
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Affiliation(s)
- Félix Ayala
- Centro para la Sostenibilidad Ambiental, Universidad Peruana Cayetano Heredia, Lima, Peru.
- Subgerencia de Salud y Medio Ambiente, Municipalidad Provincial de Sechura, Piura, Peru.
| | - Martín Zeta-Flores
- Facultad de Ingeniería de Minas, Universidad Nacional de Piura, Piura, Peru
| | | | - Juan Tume-Ruiz
- Facultad de Ingeniería Pesquera, Universidad Nacional de Piura, Piura, Peru
| | - Antia Rangel-Vega
- Facultad de Ingeniería Pesquera, Universidad Nacional de Piura, Piura, Peru
| | - Eddy Reyes
- Facultad de Ingeniería Pesquera, Universidad Nacional de Piura, Piura, Peru
| | - Edgardo Quinde
- Facultad de Ingeniería Pesquera, Universidad Nacional de Piura, Piura, Peru
| | - Gabriel Enrique De-la-Torre
- Grupo de Investigación de Biodiversidad, Medio Ambiente y Sociedad, Universidad San Ignacio de Loyola, Lima, Peru
| | - Leticia Lajo-Salazar
- División de Mastozoología, Centro de Ornitología y Biodiversidad (CORBIDI), Lima, Peru
| | - Susana Cárdenas-Alayza
- Centro para la Sostenibilidad Ambiental, Universidad Peruana Cayetano Heredia, Lima, Peru
- Departamento de Ciencias Biológicas y Fisiológicas, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, Peru
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Urli S, Corte Pause F, Crociati M, Baufeld A, Monaci M, Stradaioli G. Impact of Microplastics and Nanoplastics on Livestock Health: An Emerging Risk for Reproductive Efficiency. Animals (Basel) 2023; 13:ani13071132. [PMID: 37048387 PMCID: PMC10093235 DOI: 10.3390/ani13071132] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/16/2023] [Accepted: 03/20/2023] [Indexed: 04/14/2023] Open
Abstract
Pollution due to microplastics and nanoplastics is one of the major environmental issues of the last decade and represents a growing threat to human and animal health. In aquatic species, there is a large amount of information regarding the perturbation of marine organisms; instead, there are only a few studies focusing on the pathophysiological consequences of an acute and chronic exposure to micro- and nanoplastics in mammalian systems, especially on the reproductive system. There are several studies that have described the damage caused by plastic particles, including oxidative stress, apoptosis, inflammatory response, dysregulation of the endocrine system and accumulation in various organs. In addition to this, microplastics have recently been found to influence the evolution of microbial communities and increase the gene exchange, including antibiotic and metal resistance genes. Special attention must be paid to farm animals, because they produce food such as milk, eggs and meat, with the consequent risk of biological amplification along the food chain. The results of several studies indicate that there is an accumulation of microplastics and nanoplastics in human and animal tissues, with several negative effects, but all the effects in the body have not been ascertained, especially considering the long-term consequences. This review provides an overview of the possible adverse effects of the exposure of livestock to micro- and nanoplastics and assesses the potential risks for the disruption of reproductive physiological functions.
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Affiliation(s)
- Susy Urli
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Via Delle Scienze 206, 33100 Udine, Italy
| | - Francesca Corte Pause
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Via Delle Scienze 206, 33100 Udine, Italy
| | - Martina Crociati
- Department of Veterinary Medicine, University of Perugia, Via S. Costanzo 4, 06126 Perugia, Italy
- Centre for Perinatal and Reproductive Medicine, University of Perugia, 06129 Perugia, Italy
| | - Anja Baufeld
- Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
| | - Maurizio Monaci
- Department of Veterinary Medicine, University of Perugia, Via S. Costanzo 4, 06126 Perugia, Italy
- Centre for Perinatal and Reproductive Medicine, University of Perugia, 06129 Perugia, Italy
| | - Giuseppe Stradaioli
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Via Delle Scienze 206, 33100 Udine, Italy
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8
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Sharma H, Neelam DK. Understanding challenges associated with plastic and bacterial approach toward plastic degradation. J Basic Microbiol 2023; 63:292-307. [PMID: 36470670 DOI: 10.1002/jobm.202200428] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 10/20/2022] [Accepted: 11/11/2022] [Indexed: 12/12/2022]
Abstract
Plastic is widely used in every sector due to its stability, durability, and low cost. The widespread use of plastic results in the compilation of plastic waste in the environment. The buildup of such a vast volume of plastic garbage has emerged as the primary cause of environmental pollution, including air, land, and water pollution. Plastics contain various harmful chemicals and toxic substances that can leak and adversely affect humans and other organisms. Managing this much plastic waste is a very challenging task; therefore, an appropriate technique is needed to address this problem. Various methods are used, such as chemical, physical, and biological, to degrade plastic waste. Bacterial degradation is known to be the most effective technique for the biodegradation approach to overcome this issue. Biodegradation has played a crucial role in removing these polluting wastes more efficiently and eco-friendly. The process of biodegradation involves a variety of bacteria, such as Acinetobacter baumannii, Bacillus weihenstephanensis, Pseudomonas aeruginosa, Pseudomonas fluorescens, Rhodococcus ruber, and so on. Biodegradation of plastic takes place through various biochemical pathways, including biodeterioration, biofragmentation, assimilation, and mineralization. During biodegradation, bacteria produce enzymes like esterase, cutinase, laccase, lipase, and others that break down and transform plastic polymers into microbial biomass and gases. This review aims to explain how bacteria contribute to the breakdown of plastic.
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Affiliation(s)
- Hemlata Sharma
- Department of Microbiology, Faculty of Science, JECRC University, Jaipur, Rajasthan, India
| | - Deepesh K Neelam
- Department of Microbiology, Faculty of Science, JECRC University, Jaipur, Rajasthan, India
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9
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Ramachandraiah K, Ameer K, Jiang G, Hong GP. Micro- and nanoplastic contamination in livestock production: Entry pathways, potential effects and analytical challenges. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 844:157234. [PMID: 35810901 DOI: 10.1016/j.scitotenv.2022.157234] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 07/01/2022] [Accepted: 07/04/2022] [Indexed: 06/15/2023]
Abstract
The abundant and widespread presence of particulate plastics in the environment is considered an area of increasing environmental, animal and human health concern. Despite the abundance and the potential to cause deleterious biological effects, studies related to the impact of micro and nanoplastics (MNPs) on livestock animals are limited. This review evaluates the sources and entry pathways of particulate plastics in all the types of livestock production systems. The potential health effects of MNPs on mouse models, ruminant animals and a few other livestock animals are discussed. Since evaluation of MNPs in almost all types of matrices in hindered by analytical challenges, this review also evaluates the commonly used methods, emerging techniques, and quality control/quality assurance (QC/QA) procedures. Plastic mulching, fragmentation of plastic wastes and stream water runoff have been identified as major routes of MNPs entry in grazing-based and mixed livestock production systems. Notwithstanding the controlled indoor environment and relatively efficient waste management, MNPs have been detected in industrial livestock systems. The bioaccumulation and biomagnification of chemical toxicants can exacerbate the adverse effects of MNPs on higher trophic level species. Although there are several methods for the analysis of MNPs, dearth of standardized methods, certified reference materials, MPs standards, and global database libraries are major impediments. The adverse effects of MNPs on the internal organs of different livestock animals have to be studied using large sample sizes and without raising ethical concerns. Importantly, investigations on the accurate quantification of MNPs and its adverse effects in various livestock animals using rapid, cost-effective and robust analytical methods are required.
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Affiliation(s)
- Karna Ramachandraiah
- Department of Food Science and Biotechnology, Sejong University, Seoul 05006, Republic of Korea.
| | - Kashif Ameer
- Institute of Food Science and Nutrition, University of Sargodha, Sargodha 40100, Pakistan
| | - Guihun Jiang
- School of Public Health, Jilin Medical University, Jilin 132013, China
| | - Geun-Pyo Hong
- Department of Food Science and Biotechnology, Sejong University, Seoul 05006, Republic of Korea
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10
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Thakur K, Goud ESK, Jawa Y, Keswani C, Onteru S, Singh D, Singh SP, Roy P, Tyagi RK. Detection of endocrine and metabolism disrupting xenobiotics in milk-derived fat samples by fluorescent protein-tagged nuclear receptors and live cell imaging. Toxicol Mech Methods 2022; 33:293-306. [PMID: 36154553 DOI: 10.1080/15376516.2022.2128704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
Nuclear receptors (NRs) are ligand-modulated transcription factors that regulate multiple physiological functions in our body. Many NRs in their unliganded state are localized in cytoplasm. The ligand-inducible nuclear translocation of NRs provides a valuable tool for studying the NR-ligand interactions and their downstream effects. The translocation response of NRs can be studied irrespective of the nature of the interacting ligand (agonist, antagonist, or a small molecule modulator). These nuclear translocation studies offer an advantage over promoter-reporter-based transcription assays where transcription response is observed only with the activating hormones or agonistic ligands. Globally, milk serves as a major dietary source. However, suspected presence of endocrine/metabolism disrupting chemicals like bisphenols, parabens, organochlorine pesticides, carbamates, non-steroidal anti-inflammatory drugs, chloramphenicol, brominated flame retardants, etc. has been reported. Considering that these chemicals may impart serious developmental and metabolism-related health concerns, it is essential to develop assays suitable for the detection of xenobiotics present at differing levels in milk. Since milk samples cannot be used directly on cultured cells or for microscopy, a combination of screening strategies has been developed herein based on the revelation that i) lipophilic NR ligands can be successfully retrieved in milk-fat; ii) milk-fat treatment of cells is compatible with live-cell imaging studies; and finally, iii) treatment of cells with xenobiotics-spiked and normal milk derived fat provides a visual and quantifiable response of NR translocation in living cells. Utilizing a milk-fat extraction method and Green Fluorescent Protein (GFP) tagged NRs expressed in cultured mammalian cells, followed by an assessment of NR response proved to be an effective approach for screening xenobiotics present in milk samples.HighlightsDiverse endocrine and metabolism disrupting chemicals are suspected to contaminate milk.Nuclear receptors serve as 'xenosensors' for assessing the presence of xenobiotics in milk.Nuclear import of steroid receptors with (ant)agonist can be examined in live cells.Lipophilic xenobiotics are extracted and observed enriched in milk-fat fraction.A comprehensive cell-based protocol aids in the detection of xenobiotics in milk.
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Affiliation(s)
- Keshav Thakur
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi-110067, India
| | | | - Yashika Jawa
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi-110067, India
| | - Chetan Keswani
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, Uttar Pradesh, India
| | - Suneel Onteru
- Molecular Endocrinology, Functional Genomics and Systems Biology Laboratory, Animal Biochemistry Division, National Dairy Research Institute, Karnal-132001, Haryana, India
| | - Dheer Singh
- Molecular Endocrinology, Functional Genomics and Systems Biology Laboratory, Animal Biochemistry Division, National Dairy Research Institute, Karnal-132001, Haryana, India
| | - Surya P Singh
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, Uttar Pradesh, India
| | - Partha Roy
- Department of Biosciences and Bioengineering, Indian Institute of Technology, Roorkee-247667, Uttarakhand, India
| | - Rakesh K Tyagi
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi-110067, India
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11
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Yang H, Yumeng Y, Yu Y, Yinglin H, Fu B, Wang J. Distribution, sources, migration, influence and analytical methods of microplastics in soil ecosystems. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 243:114009. [PMID: 36030682 DOI: 10.1016/j.ecoenv.2022.114009] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 07/19/2022] [Accepted: 08/20/2022] [Indexed: 06/15/2023]
Abstract
Microplastics are ubiquitous in soil ecosystems all over the world through source and migration. It is even estimated that the content of microplastics in terrestrial ecosystems exceeds the number of microplastics entering sea ecosystems. However, compared with the research on microplastics in marine ecosystems, the research and discussion on microplastics in soil ecosystems are still less. Transportation, film mulching and sewage sludge are three main sources of soil microplastics. The abundance, polymer type, size and shape of the microplastics are related to the source and they help to clarify the source. The characteristics of microplastics, farming measures, soil animal activities and other factors promote the migration of microplastics, which bring new challenges to the soil ecosystems and humans. This article summarizes the latest research findings on the effects of soil microplasticity on soil properties, plants, animals and microorganisms. The analysis methods of microplastics in soil can refer to the analysis methods of microplastics of aquatic sediments, because soil and aquatic sediments are similar, both of which are complex solid substrates. At present, the development of analytical methods is limited due to the complex matrix of soil and the small volume of microplastics, which requires continuous development and innovation. Through the summary and analysis of related articles, this article reviews the distribution, sources, migration, influence and analysis methods of soil microplastics. This article also critically analyzes the deficiencies in the studies of microplastics in the soil ecosystems, and made some suggestions for future work. The microplastics in soil ecosystems need further research and summary, which will help people further understand the potential hazards of microplastics.
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Affiliation(s)
- Huirong Yang
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China; Zhongshan Innovation Center of South China Agricultural University, Zhongshan 528400, China
| | - Yan Yumeng
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Youkai Yu
- Institute for Innovation and Entrepreneurship, Loughborough University, London E20 3BS, UK
| | - He Yinglin
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Bing Fu
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Jun Wang
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China; Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai 528478, China; Institute of Eco-Environmental Research, Guangxi Academy of Sciences, Nanning 530007, China.
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12
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Eisfeld-Pierantonio SM, Pierantonio N, Simmonds MP. The impact of marine debris on cetaceans with consideration of plastics generated by the COVID-19 pandemic. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 300:118967. [PMID: 35134431 DOI: 10.1016/j.envpol.2022.118967] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 01/13/2022] [Accepted: 02/04/2022] [Indexed: 06/14/2023]
Abstract
The accumulation of human-derived debris in the oceans is a global concern and a serious threat to marine wildlife. There is a volume of evidence that points to deleterious effects of marine debris (MD) on cetaceans in terms of both entanglement and ingestion. This review suggests that about 68% of cetacean species are affected by interacting with MD with an increase in the number of species reported to have interacted with it over the past decades. Despite the growing body of evidence, there is an ongoing debate on the actual effects of plastics on cetaceans and, in particular, with reference to the ingestion of microplastics and their potential toxicological and pathogenic effects. Current knowledge suggests that the observed differences in the rate and nature of interactions with plastics are the result of substantial differences in species-specific diving and feeding strategies. Existing projections on the production, use and disposal of plastics suggest a further increase of marine plastic pollution. In this context, the contribution of the ongoing COVID-19 pandemic to marine plastic pollution appears to be substantial, with potentially serious consequences for marine life including cetaceans. Additionally, the COVID-19 pandemic offers an opportunity to investigate the direct links between industry, human behaviours and the effects of MD on cetaceans. This could help inform management, prevention efforts, describe knowledge gaps and guide advancements in research efforts. This review highlights the lack of assessments of population-level effects related to MD and suggests that these could be rather immediate for small populations already under pressure from other anthropogenic activities. Finally, we suggest that MD is not only a pollution, economic and social issue, but also a welfare concern for the species and populations involved.
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Affiliation(s)
| | - Nino Pierantonio
- Tethys Research Institute, Viale G. B. Gadio 2, 20121, Milano, Italy.
| | - Mark P Simmonds
- Bristol Veterinary School Langford House, Langford, Bristol, BS40 5DU, UK; OceanCare, PO Box 372, 8820, Wadenswill, Switzerland.
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13
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Plastic Waste Management in India: Challenges, Opportunities, and Roadmap for Circular Economy. SUSTAINABILITY 2022. [DOI: 10.3390/su14084425] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Plastic waste (PW) is one of the most rapid-growing waste streams in municipal solid waste all over the world. India has become a global player in the plastic value chain. Despite low consumption, domestic generation and imports create a significant burden on the overall waste management system, which requires in-depth understanding of the scenario and pathways that can mitigate the crisis. Although Indian researchers have widely researched technology-related issues in academic papers, a substantial knowledge gap exists in understanding the problem’s depth and possible solutions. This review article focuses on current plastic production, consumption, and waste generation in India. This review article mainly analyzes data and information regarding Indian PW management and highlights some critical issues such as reverse supply chain, effective PW management, source-specific recovery, and PW rules in India. Comprehensively, this review will help to identify implementable strategies for policymakers and research opportunities for future researchers in holistic PW management and recycling in India, focusing on the circular economy and sustainable development goals.
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14
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Xu Q, Qiao Q, Gao Y, Hou J, Hu M, Du Y, Zhao K, Li X. Gut Microbiota and Their Role in Health and Metabolic Disease of Dairy Cow. Front Nutr 2021; 8:701511. [PMID: 34422882 PMCID: PMC8371392 DOI: 10.3389/fnut.2021.701511] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 06/28/2021] [Indexed: 12/12/2022] Open
Abstract
Ruminants are mostly herbivorous animals that employ rumen fermentation for the digestion of feed materials, including dairy cows. Ruminants consume plant fibre as their regular diet, but lack the machinery for their digestion. For this reason, ruminants maintain a symbiotic relation with microorganisms that are capable of producing enzymes to degrade plant polymers. Various species of microflora including bacteria, protozoa, fungi, archaea, and bacteriophages are hosted at distinct concentrations for accomplishing complete digestion. The ingested feed is digested at a defined stratum. The polysaccharic plant fibrils are degraded by cellulolytic bacteria, and the substrate formed is acted upon by other bacteria. This sequential degradative mechanism forms the base of complete digestion as well as harvesting energy from the ingested feed. The composition of microbiota readily gets tuned to the changes in the feed habits of the dairy cow. The overall energy production as well as digestion is decided by the intactness of the resident communal flora. Disturbances in the homogeneity gastrointestinal microflora has severe effects on the digestive system and various other organs. This disharmony in communal relationship also causes various metabolic disorders. The dominance of methanogens sometimes lead to bloating, and high sugar feed culminates in ruminal acidosis. Likewise, disruptive microfloral constitution also ignites reticuloperitonitis, ulcers, diarrhoea, etc. The role of symbiotic microflora in the occurrence and progress of a few important metabolic diseases are discussed in this review. Future studies in multiomics provides platform to determine the physiological and phenotypical upgradation of dairy cow for milk production.
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Affiliation(s)
- Qingbiao Xu
- College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, China
| | - Qinqin Qiao
- College of Information Engineering, Fuyang Normal University, Fuyang, China
| | - Ya Gao
- College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, China
| | - Jinxiu Hou
- College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, China
| | - Mingyang Hu
- College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, China
| | - Yufeng Du
- College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, China
| | - Ke Zhao
- Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Xiang Li
- College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, China.,National Center for International Research on Animal Genetics, Breeding and Reproduction (NCIRAGBR), Huazhong Agricultural University, Wuhan, China.,Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, China
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15
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Domenech J, Marcos R. Pathways of human exposure to microplastics, and estimation of the total burden. Curr Opin Food Sci 2021. [DOI: 10.1016/j.cofs.2021.01.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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16
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Beriot N, Peek J, Zornoza R, Geissen V, Huerta Lwanga E. Low density-microplastics detected in sheep faeces and soil: A case study from the intensive vegetable farming in Southeast Spain. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 755:142653. [PMID: 33069476 DOI: 10.1016/j.scitotenv.2020.142653] [Citation(s) in RCA: 84] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 09/10/2020] [Accepted: 09/24/2020] [Indexed: 06/11/2023]
Abstract
One of the main sources of plastic pollution in agricultural fields is the plastic mulch used by farmers to improve crop production. The plastic mulch is often not removed completely from the fields after harvest. Over time, the plastic mulch that is left of the fields is broken down into smaller particles which are dispersed by the wind or runoff. In the Region of Murcia in Spain, plastic mulch is heavily used for intensive vegetable farming. After harvest, sheep are released into the fields to graze on the vegetable residues. The objective of the study was to assess the plastic contamination in agricultural soil in Spain and the ingestion of plastic by sheep. Therefore, three research questions were established: i) What is the plastic content in agricultural soils where plastic mulch is commonly used? ii) Do livestock ingest the microplastics found in the soil? iii) How much plastic could be transported by the livestock? To answer these questions, we sampled top soils (0-10 cm) from 6 vegetable fields and collected sheep faeces from 5 different herds. The microplastic content was measured using density separation and visual identification. We found ~2 × 103 particles∙kg-1 in the soil and ~103 particles∙kg-1 in the faeces. The data show that plastic particles were present in the soil and that livestock ingested them. After ingesting plastic from one field, the sheep can become a source of microplastic contamination as they graze on other farms or grasslands. The potential transport of microplastics due to a herd of 1000 sheep was estimated to be ~106 particles∙ha-1∙y-1. Further studies should focus on: assessing how much of the plastic found in faeces comes directly from plastic mulching, estimating the plastic degradation in the guts of sheep and understanding the potential effects of these plastic residues on the health of livestock.
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Affiliation(s)
- Nicolas Beriot
- Soil Physics and Land Management Group, Wageningen University & Research, P.O. Box 47, 6700AA Wageningen, the Netherlands; Sustainable Use, Management and Reclamation of Soil and Water Research Group, Universidad Politécnica de Cartagena, Paseo Alfonso XIII, 48, 30203 Cartagena, Spain.
| | - Joost Peek
- Soil Physics and Land Management Group, Wageningen University & Research, P.O. Box 47, 6700AA Wageningen, the Netherlands
| | - Raul Zornoza
- Sustainable Use, Management and Reclamation of Soil and Water Research Group, Universidad Politécnica de Cartagena, Paseo Alfonso XIII, 48, 30203 Cartagena, Spain
| | - Violette Geissen
- Soil Physics and Land Management Group, Wageningen University & Research, P.O. Box 47, 6700AA Wageningen, the Netherlands
| | - Esperanza Huerta Lwanga
- Soil Physics and Land Management Group, Wageningen University & Research, P.O. Box 47, 6700AA Wageningen, the Netherlands; Agroecología, El Colegio de la Frontera Sur, Unidad Campeche, Campeche, Mexico
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17
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Patil S, Bafana A, Naoghare PK, Krishnamurthi K, Sivanesan S. Environmental prevalence, fate, impacts, and mitigation of microplastics-a critical review on present understanding and future research scope. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:4951-4974. [PMID: 33241497 DOI: 10.1007/s11356-020-11700-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 11/16/2020] [Indexed: 05/23/2023]
Abstract
Microplastics are considered to be ubiquitous and widespread emerging contaminants. They are persistent in the nature and pose considerable harm to the environment. Their omnipresence is documented in almost all aquatic habitats, several atmospheric and terrestrial environments, and also in human consumables. The objective of this review is to provide an overview of the environmental prevalence of the microplastics in all environmental compartments, and their possible adverse impacts. It also presents review of the studies conducted in India and the epitome of potential mitigation measures. The need and direction of future research are highlighted. The review will help in determining the exposure levels, environmental consequences, and risk estimations, and will guide the researchers and policymakers.
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Affiliation(s)
- Sakshi Patil
- Health and Toxicity Cell (HTC), CSIR-NEERI (National Environmental Engineering Research Institute) Campus, Nagpur, 440020, India
- AcSIR (Academy of Scientific and Innovative Research), CSIR-NEERI (National Environmental Engineering Research Institute) Campus, Nagpur, 440020, India
| | - Amit Bafana
- Director's Research Cell (DRC), CSIR-NEERI (National Environmental Engineering Research Institute) Campus, Nagpur, 440020, India
| | - Pravin K Naoghare
- Environmental Impact and Sustainability Division (EISD), CSIR-NEERI (National Environmental Engineering Research Institute) Campus, Nagpur, 440020, India
| | - Kannan Krishnamurthi
- Health and Toxicity Cell (HTC), CSIR-NEERI (National Environmental Engineering Research Institute) Campus, Nagpur, 440020, India
| | - Saravanadevi Sivanesan
- Health and Toxicity Cell (HTC), CSIR-NEERI (National Environmental Engineering Research Institute) Campus, Nagpur, 440020, India.
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18
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Integrated and Consolidated Review of Plastic Waste Management and Bio-Based Biodegradable Plastics: Challenges and Opportunities. SUSTAINABILITY 2020. [DOI: 10.3390/su12208360] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Cumulative plastic production worldwide skyrocketed from about 2 million tonnes in 1950 to 8.3 billion tonnes in 2015, with 6.3 billion tonnes (76%) ending up as waste. Of that waste, 79% is either in landfills or the environment. The purpose of the review is to establish the current global status quo in the plastics industry and assess the sustainability of some bio-based biodegradable plastics. This integrative and consolidated review thus builds on previous studies that have focused either on one or a few of the aspects considered in this paper. Three broad items to strongly consider are: Biodegradable plastics and other alternatives are not always environmentally superior to fossil-based plastics; less investment has been made in plastic waste management than in plastics production; and there is no single solution to plastic waste management. Some strategies to push for include: increasing recycling rates, reclaiming plastic waste from the environment, and bans or using alternatives, which can lessen the negative impacts of fossil-based plastics. However, each one has its own challenges, and country-specific scientific evidence is necessary to justify any suggested solutions. In conclusion, governments from all countries and stakeholders should work to strengthen waste management infrastructure in low- and middle-income countries while extended producer responsibility (EPR) and deposit refund schemes (DPRs) are important add-ons to consider in plastic waste management, as they have been found to be effective in Australia, France, Germany, and Ecuador.
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19
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Sadan M, El-Shafaey ES, Al-Sobayil F. Diagnosis and treatment of foreign bodies swallowing syndrome in camels (Camelus dromedarius) with special reference to the role of mineral deficiency. J Vet Med Sci 2020; 82:1097-1103. [PMID: 32507784 PMCID: PMC7468058 DOI: 10.1292/jvms.19-0621] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
This study describes the clinical presentation of ruminal and reticular foreign body
syndrome (RRFBS), and evaluates the effect of mineral deficiency on its occurrence in
dromedary camels. Thirty dromedary camels were divided into two groups. Group 1 (control)
included 10 apparently healthy she-camels. Group 2 consisted of twenty dromedary camels
diagnosed with RRFBS on the basis of clinical, ultrasonographic, hematological, and
biochemical examinations. Clinical findings showed decreased appetite and milk yield,
tympany, and gradual body weight loss. Ultrasonographic examinations revealed the presence
of hyperechoic material with variable degrees of shadowing. Hematological evaluation
showed a significant (P<0.05) decrease of the total erythrocyte and
lymphocyte count and a significant increase of neutrophils in the camels with RRFBS
compared to the controls. Biochemical tests showed a significant elevation in the activity
of serum aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline
phosphatase (ALP), gamma-glutamyl transferase (GGT), creatine kinase (CK), glucose,
creatinine, and blood urea nitrogen and a significant decrease of sodium, chloride,
potassium, cobalt, iron, and selenium in the camels with RRFBS compared to the controls.
Rumenotomy was performed on the 20 camels as a surgical intervention for treating the
RRFBS. By the 6th month postoperatively, all surgically treated camels had completely
recovered except for one with tympany and slight swelling in situ. In
conclusion, trace element deficiency might play an important role in the occurrence of
foreign body ingestion syndrome in dromedary camels. Moreover, clinical, ultrasonographic,
hematological, and biochemical examinations are considered as tools assisting in the
accurate diagnosis, prognosis, and treatment stratagem for RRFBS in camels.
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Affiliation(s)
- Madeh Sadan
- Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, Qassim University, Qassim, P.O. Box 51452, Saudi Arabia.,Department of Surgery, Anesthesiology and Radiology, Faculty of Veterinary Medicine, South Valley University, Qena 83523, Egypt
| | - El-Sayed El-Shafaey
- Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, Qassim University, Qassim, P.O. Box 51452, Saudi Arabia.,Department of Surgery, Anesthesiology and Radiology, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Fahd Al-Sobayil
- Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, Qassim University, Qassim, P.O. Box 51452, Saudi Arabia
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20
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Mahadappa P, Krishnaswamy N, Karunanidhi M, Bhanuprakash AG, Bindhuja BV, Dey S. Effect of plastic foreign body impaction on rumen function and heavy metal concentrations in various body fluids and tissues of buffaloes. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 189:109972. [PMID: 31780204 DOI: 10.1016/j.ecoenv.2019.109972] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 10/21/2019] [Accepted: 11/13/2019] [Indexed: 06/10/2023]
Abstract
Rumen impaction by plastic waste (PW) is a common condition in the developing countries where ruminants are reared under extensive grazing. As heavy metals (HM) are used in the manufacture of plastic, we hypothesized that buffaloes with PW impaction would have suboptimal rumen function and higher content of HM in the rumen fluid, sera and body tissues. Buffaloes at an abattoir were categorized into impacted with PW or not (Group C and B, respectively; n = 30/group). From the animals of group C and B, rumen fluid and sera were collected ante-mortem, while muscle, liver and kidney were collected after exsanguination. Blood and rumen fluid of stall-fed buffaloes (Group A; n = 15) served as known negative control. Rumen function was assessed by protozoal density, motility, pH, methylene blue reduction time (MBRT) and sedimentation activity time (SAT). Concentration of HM such as mercury (Hg), lead (Pb), cadmium (Cd), chromium (Cr) and copper (Cu) in the body fluids, tissues and impacted PW was estimated by atomic absorption spectrometry (AAS). A significant decrease in the rumen protozoal density, motility and increase (P < 0.05) in the rumen fluid pH, MBRT and SAT were observed in group C as compared to group A and B. Concentration of Pb, Hg and Cd showed a moderate to strong significant negative correlation with rumen function indicators. Quantitatively, Cu content (ppm) was highest in PW with 0.9 ± 0.04. The concentration of HM in the body fluids and tissues was significantly (P < 0.05) elevated in group C, but was below the toxic levels. In stall-fed buffaloes, Hg, Pb and Cd were undetectable in body fluids. Collectively, the results indicate that long term exposure of buffaloes to HM from PW affect the health, productivity and increase the risk of entering the food chain.
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Affiliation(s)
- Priyanka Mahadappa
- Indian Veterinary Research Institute, Regional Campus, Hebbal, Bengaluru, Karnataka, 560024, India
| | - Narayanan Krishnaswamy
- Indian Veterinary Research Institute, Regional Campus, Hebbal, Bengaluru, Karnataka, 560024, India
| | - Mahendran Karunanidhi
- Division of Medicine, Indian Veterinary Research Institute, Izatnagar, Bareilly, UP, 243122, India
| | - A G Bhanuprakash
- Division of Medicine, Indian Veterinary Research Institute, Izatnagar, Bareilly, UP, 243122, India
| | - B V Bindhuja
- Division of Surgery, Indian Veterinary Research Institute, Izatnagar, Bareilly, UP, 243122, India
| | - Sahadeb Dey
- Division of Medicine, Indian Veterinary Research Institute, Izatnagar, Bareilly, UP, 243122, India.
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21
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C. E, N. P, S. CF, A. G. Exploring the styrene metabolism by aerobic bacterial isolates for the effective management of leachates in an aqueous system. RSC Adv 2020; 10:26535-26545. [PMID: 35519756 PMCID: PMC9055403 DOI: 10.1039/d0ra03822a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 06/19/2020] [Indexed: 11/21/2022] Open
Abstract
In the present study, the styrene metabolic profile of three aerobic bacterial isolates explored in a batch mode study. The isolates found application in the management of elachates in the waste dump yard. These three bacterial species have different origins and were studied as a single and mixed consortia. The Lysinibacillus strain M01 (from marine sources), Lysinibacillus strain WD03 (from a waste dump yard), and Pseudomonas strain BG07 (from bovine gut) were used in the present study. The styrene concentration was fixed in the range between 0.5 and 1.5 mL L−1. The metabolites obtained upon microbial degradation were assessed using high-performance liquid chromatography (HPLC), UV-visible spectroscopy, and FTIR spectroscopy (Fourier transform infrared spectroscopy). Furthermore, the genes (Sty A, B, C, D, and E) responsible for the degradation of styrene by the three abovementioned isolates were identified using PCR with respective designed primers. Instrumental analyses revealed the presence of phenylacetic acid (PAA) at significant levels in the growth medium after the scheduled experimental period and confirmed the metabolism of styrene by the chosen isolates. Compared to the case of individual cultures, the results of the mixed consortia support the metabolism of styrene at appreciable levels. The present study provides a suitable biological solution for the management of leachates containing styrene and a way to achieve industrially important chemicals (PAA) through a microbially mediated process. Profile of the three potential aerobic bacterial isolates responsible for the metabolism of styrene.![]()
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Affiliation(s)
- Ebciba C.
- Microbiology Division
- CSIR-CLRI
- Chennai 600 020
- India
| | - Pavithra N.
- Microbiology Division
- CSIR-CLRI
- Chennai 600 020
- India
| | | | - Gnanamani A.
- Microbiology Division
- CSIR-CLRI
- Chennai 600 020
- India
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