Microplastics in aquatic environments: Toxicity to trigger ecological consequences

Ma, Hongan; Pu, Shengyan; Liu, Shibin; Bai, Yingchen; Mandal, Sandip; Xing, Baoshan

doi:10.1016/j.envpol.2020.114089

Cited by 335 publications

(94 citation statements)

References 157 publications

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“…MPs' impact on the environment is not well defined, in part because of methodological challenges [3], but consensus is that their potential effect is negative [4,5] and, given the high stability of polymers, the negative impact of MP may persist for considerable time periods. The effect of MP's shape on toxicity is yet to be established.…”

Section: Introductionmentioning

confidence: 99%

Stormwater Detention Reservoirs: An Opportunity for Monitoring and a Potential Site to Prevent the Spread of Urban Microplastics

Moruzzi

Speranza

Conceição

et al. 2020

Water

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Stormwater runoff carries pollutants from urban areas to rivers and has the potential to be a main contributing source of microplastics (MPs) to the ecosystem. Stormwater detention reservoirs (SDRs) differ from ponds and lakes in that SDRs retain most particulate matter and they are emptied after storm events. This paper investigates the occurrence of MPs in the SDR of the Alto-Tietê catchment area, Itaim stream in Poá city, São Paulo, Brazil. The MPs found were classified in different categories: shapes (fragment, line/fibre, film/sheet and pellet); size (<0.5 mm, between 0.5 mm and 1 mm and >1 mm); and polymer composition. Results have shown that most of the MPs found in the samples are fragments (57%), followed by pellets (27%), fibres/lines (9%), and then films/sheets (6%). Small particles (<0.5 mm) represented 89% of the total MPs, and this category mainly included fragments (62%) and pellets (30%). MPs were found in a vast variety of shapes and colours, which shows a likely variety of sources. Besides the occurrence of MPs in the stormwater samples, the potential of SDRs as a first sanitary barrier to retain MPs before they reach the ecosystem has been speculated.

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Section: Introductionmentioning

confidence: 99%

Stormwater Detention Reservoirs: An Opportunity for Monitoring and a Potential Site to Prevent the Spread of Urban Microplastics

Moruzzi

Speranza

Conceição

et al. 2020

Water

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“…In Section 2, we provide prepara-Journal of Applied Mathematics and Physics tions for the proof and calculation of the system (3). Section 3 discusses the stability of the distribution of the impulseless system (6). Then in Section 4, the threshold between persistence in the mean and extinction for each species is established.…”

Section: Supposementioning

confidence: 99%

“…For example, the use of chemical pesticides has effectively controlled the pest problem in agriculture, but it is also widely regarded as one of the problems that have a negative impact on the environment and food safety [5]. The ecotoxicity produced by microplastics will be transferred and diffused to the entire aquatic environment, which affects the stability of the ecological environment [6]. These examples show that uncontrolled input of toxicant affects the balance of the ecosystem, and even leads to the extinction of populations.…”

Section: Introductionmentioning

confidence: 99%

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Dynamical Analysis of a Stochastic Predator-Prey System with Lévy Noise and Impulsive Toxicant Input

She¹,

Shao²,

Zhang³

2020

JAMP

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This paper established a modified Leslie-Gower and Holling-type IV stochastic predator-prey model with Lévy noise and impulsive toxicant input. We study the stability in distribution of solutions by inequality techniques and ergodic method. By comparison method and Itô's formula, we obtain the sufficient conditions for the survival of each species. Some numerical simulations are introduced to show the theoretical results.

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“…Nonetheless, oxidative stress, genotoxicity, neurotoxicity, in ammation as well as dysregulation of lipid and energy metabolism have been the proposed mechanisms, among others, reported in the literature [4,5,6]. The principles of plastic particulates toxicity have been extensively reviewed [7,8,9,10,11], even though evidences of harmful effects have mostly restricted to observation on marine and aquatic species and albeit microplastics. Public health and environmental concerns, however, increasingly drive efforts to unravel the potential effects following exposure to nanoplastics (NPs -fragments ≤ 100 nm) in humans which could be a future prime concern.…”

Section: Introductionmentioning

confidence: 99%

Physiological stress response of the Wistar albino rats orally exposed to polystyrene nanoparticles

Babaei

Rafiee

Khodagholi

et al. 2020

Preprint

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Background Few studies have examined nano-sized plastic particulates (NPs) exposure in relation to oxidative stress and biochemical responses in rodents, commonly used for toxicity evaluations on which to base risk assessment for humans.Methods Here we explored possible oxidative stress and biochemical responses of five weeks oral exposure to polystyrene (PS) nanoparticles (1, 3, 6 and 10 mg/kg body weight per day) in male rats. We used variance analysis and variance explained statistic eta-squared (𝜂2) to estimate the strength of relationships worked out. The whole body scanning further provided insight into the bio-distribution of nanoplastics upon oral exposure.Results Results demonstrated the accumulation of PS-NPs through whole body and also a dose-dependent increase in the production of reactive oxygen species (ROS). Significant alterations in antioxidant responses including serum levels of catalase, superoxide dismutase (SOD), and total glutathione content were noticed, pointing towards a perturbation of redox state induced by the exposure conditions. Acetylcholinesterase level in highest dose group was about 40 percent lower than those in control group. Biochemical parameters viz. glucose, cortisol, lipase, lactate, lactate dehydrogenase (LDH), alkaline phosphatase, gamma-glutamyl transpeptidase (GGT), triglycerides, and urea showed a significant increase, while total protein, albumin and globulin levels showed an appreciable decline.Conclusion The pattern of associations noticed with AChE activity and biochemical responses in our study suggests the possibility that a neurobehavioral effect or dysfunctions in energy metabolism, or both, may be the potential mode of action, possibly through stress response as well as liver function. Perturbations of creatinine and uric acid levels are indeed plausible biological explanations for the association with kidney dysfunction. Although we provided a new scientific clue for exploring the biological effects of plastics nanoparticles, the results warrant additional research with a larger sample size. The suggested potential mechanisms also remains to be investigated.

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Microplastics in aquatic environments: Toxicity to trigger ecological consequences

Cited by 335 publications

References 157 publications

Stormwater Detention Reservoirs: An Opportunity for Monitoring and a Potential Site to Prevent the Spread of Urban Microplastics

Stormwater Detention Reservoirs: An Opportunity for Monitoring and a Potential Site to Prevent the Spread of Urban Microplastics

Dynamical Analysis of a Stochastic Predator-Prey System with Lévy Noise and Impulsive Toxicant Input

Physiological stress response of the Wistar albino rats orally exposed to polystyrene nanoparticles

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Microplastics in aquatic environments: Toxicity to trigger ecological consequences

Cited by 335 publications

References 157 publications

Stormwater Detention Reservoirs: An Opportunity for Monitoring and a Potential Site to Prevent the Spread of Urban Microplastics

Stormwater Detention Reservoirs: An Opportunity for Monitoring and a Potential Site to Prevent the Spread of Urban Microplastics

Dynamical Analysis of a Stochastic Predator-Prey System with L&#233;vy Noise and Impulsive Toxicant Input

Physiological stress response of the Wistar albino rats orally exposed to polystyrene nanoparticles

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Dynamical Analysis of a Stochastic Predator-Prey System with Lévy Noise and Impulsive Toxicant Input