Microplastic contamination in surface waters in Guanabara Bay, Rio de Janeiro, Brazil

Olivatto, Glaucia P.; Martins, Maria Clara T.; Montagner, Cassiana Carolina; Henry, Theodore B.; Carreira, Renato S.

doi:10.1016/j.marpolbul.2018.12.042

Cited by 103 publications

(35 citation statements)

References 43 publications

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“…non-susceptible to antimicrobials is also alarming in the context of plastic pollution. Previous studies in the GB have already reported the presence of expressive amounts of plastics and microplastics throughout all of its extensions, including sites near the ones analyzed in our study [ 16 , 76 ]. Plastics are emerging pollutants that provide relatively stable habitats for microorganisms, which in turn are able to form biofilms on such surfaces.…”

Section: Discussionsupporting

confidence: 60%

Vibrio Species in an Urban Tropical Estuary: Antimicrobial Susceptibility, Interaction with Environmental Parameters, and Possible Public Health Outcomes

et al. 2021

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The genus Vibrio comprises pathogens ubiquitous to marine environments. This study evaluated the cultivable Vibrio community in the Guanabara Bay (GB), a recreational, yet heavily polluted estuary in Rio de Janeiro, Brazil. Over one year, 66 water samples from three locations along a pollution gradient were investigated. Isolates were identified by MALDI-TOF mass spectrometry, revealing 20 Vibrio species, including several potential pathogens. Antimicrobial susceptibility testing confirmed resistance to aminoglycosides, beta-lactams (including carbapenems and third-generation cephalosporins), fluoroquinolones, sulfonamides, and tetracyclines. Four strains were producers of extended-spectrum beta-lactamases (ESBL), all of which carried beta-lactam and heavy metal resistance genes. The toxR gene was detected in all V. parahaemolyticus strains, although none carried the tdh or trh genes. Higher bacterial isolation rates occurred in months marked by higher water temperatures, lower salinities, and lower phosphorus and nitrogen concentrations. The presence of non-susceptible Vibrio spp. was related to indicators of eutrophication and sewage inflow. DNA fingerprinting analyses revealed that V. harveyi and V. parahaemolyticus strains non-susceptible to antimicrobials might persist in these waters throughout the year. Our findings indicate the presence of antimicrobial-resistant and potentially pathogenic Vibrio spp. in a recreational environment, raising concerns about the possible risks of human exposure to these waters.

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Section: Discussionsupporting

confidence: 60%

Vibrio Species in an Urban Tropical Estuary: Antimicrobial Susceptibility, Interaction with Environmental Parameters, and Possible Public Health Outcomes

et al. 2021

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“…However, a recent report by the Ocean Conservancy and McKinsey Center for Business and Environment (2015) argued that more than 50% of the plastic pollution of the oceans, originating from land, comes from five Asian countries (Jambeck et al 2015). The pattern of MPs contamination of the oceans (surface/ column water and sediments) has been the subject of intensive recent research, but their results are contradictory Olivatto et al 2019;Pan et al 2019;Yu et al 2018;C Zhang et al 2019;J Zhao et al 2018). The systematic review on MP environmental occurrence by Burns and Boxall (2018) point to higher contamination close to urban and industrial coastal areas and rivers for surface waters.…”

Section: Discussionmentioning

confidence: 99%

Microplastic Contamination of Seafood Intended for Human Consumption: A Systematic Review and Meta-Analysis

Danopoulos

Jenner

Twiddy

et al. 2020

Environ Health Perspect

171

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Background: Microplastics (MPs) have contaminated all compartments of the marine environment including biota such as seafood; ingestion from such sources is one of the two major uptake routes identified for human exposure. Objectives: The objectives were to conduct a systematic review and meta-analysis of the levels of MP contamination in seafood and to subsequently estimate the annual human uptake. Methods: MEDLINE, EMBASE, and Web of Science were searched from launch (1947, 1974, and 1900, respectively) up to October 2020 for all studies reporting MP content in seafood species. Mean, standard deviations, and ranges of MPs found were collated. Studies were appraised systematically using a bespoke risk of bias (RoB) assessment tool. Results: Fifty studies were included in the systematic review and 19 in the meta-analysis. Evidence was available on four phyla: mollusks, crustaceans, fish, and echinodermata. The majority of studies identified MP contamination in seafood and reported MP content , with 26% of studies rated as having a high RoB, mainly due to analysis or reporting weaknesses. Mollusks collected off the coasts of Asia were the most heavily contaminated, coinciding with reported trends of MP contamination in the sea. According to the statistical summary, MP content was in mollusks, in crustaceans, in fish, and in echinodermata. Maximum annual human MP uptake was estimated to be close to 55,000 MP particles. Statistical, sample, and methodological heterogeneity was high. Discussion: This is the first systematic review, to our knowledge, to assess and quantify MP contamination of seafood and human uptake from its consumption, suggesting that action must be considered in order to reduce human exposure via such consumption. Further high-quality research using standardized methods is needed to cement the scientific evidence on MP contamination and human exposures. https://doi.org/10.1289/EHP7171

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“…Our results showed that all samples presented microplastic particles; however, the water from the North Wing area presented a higher mean of MPs (219 MP/500 mL of water) than the South Wing (97 MP/500 mL of water), and MP size ranged from 6-50 microns. In Brazil, researchers on MPs follow the global pattern, with most publications focusing on coastal and marine ecosystems [1,36,52,53].…”

Section: Discussionmentioning

confidence: 99%

Presence and Quantification of Microplastic in Urban Tap Water: A Pre-Screening in Brasilia, Brazil

et al. 2021

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Plastic pollution is a rapidly growing environmental and human health crisis, with no sign of improvement. From 2012 to 2020, the number of studies on plastic pollution increased, and macro to nano-sized plastics have been documented in the most remote biomes of the planet. Studies have shown contamination by microplastics (MPs) in various types of food consumed by humans, including seafood, honey, sugar, salt, tap and bottled water and beer. This study’s objective was to detect the possible contamination by MPs in drinking water samples collected from two main residential and commercial areas of Brasilia. A total of 32 samples (500 mL) of tap water were collected from residential and commercial areas. Samples were processed and transferred to a Sedgewick-Rafter counting cell chamber. The presence of MP particles was analyzed using a Nikon Eclipse fluorescence microscope. MPs were found in 100% of the samples. The mean microplastic particles per 500 mL found in the South Wing area was 97 ± 55, while the mean number of particles in the North Wing area was 219 ± 158, and the MPs found ranged in size from 6–50 microns. The study results reveal a disturbing amount of MP particles in Brasilia’s tap water. This surprising number of particles in residential and commercial tap water is especially considering that tap water is not the only source of MPs to which people are exposed.

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Microplastic contamination in surface waters in Guanabara Bay, Rio de Janeiro, Brazil

Cited by 103 publications

References 43 publications

Vibrio Species in an Urban Tropical Estuary: Antimicrobial Susceptibility, Interaction with Environmental Parameters, and Possible Public Health Outcomes

Vibrio Species in an Urban Tropical Estuary: Antimicrobial Susceptibility, Interaction with Environmental Parameters, and Possible Public Health Outcomes

Microplastic Contamination of Seafood Intended for Human Consumption: A Systematic Review and Meta-Analysis

Presence and Quantification of Microplastic in Urban Tap Water: A Pre-Screening in Brasilia, Brazil

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