Anthropogenic Release and Distribution of Titanium Dioxide Particles in a River Downstream of a Nanomaterial Manufacturer Industrial Site

Slomberg, Danielle L.; Auffan, Mélanie; Guéniche, Nelly; Angeletti, Bernard; Campos, Andréa; Borschneck, Daniel; Aguerre-Chariol, Olivier; Rose, Jérôme

doi:10.3389/fenvs.2020.00076

Cited by 29 publications

(24 citation statements)

References 39 publications

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“…However, in the case of CA1, SAN1, SK1, the product-released ENMs sizes were slightly different from the ENMs incorporated into the NEPs [41], especially for nAg, where the transformation occurred in terms of the change in particle size (increase and decrease). The physical properties of product-released ENMs are crucial in understanding the behaviour, fate and effects of nanopollutants in aquatic environments, where several studies have already reported their presence in real environmental samples [13,14,[73][74][75].…”

Section: Socks 1 (Sk1) Product-released Enmsmentioning

confidence: 99%

“…Furthermore, environmental concentrations of ENMs in water systems differ from estimates from in silico studies [11][12][13][14][15]. For example, Ag and Ti' predicted environmental concentrations (PECs) are reported, respectively, as 0.7-16 µg/L [16][17][18][19], and 0.014-2.2 µg/L [18][19][20], while measured environmental concentrations (MECs) were quantified at 0.03-19.7 µg/L (Ag) [21][22][23], 0.67-150 µg/L (Ti) [12][13][14][24][25][26]. Continuous release of ENMs leads to concentrations of nanopollutants reaching levels that can be hazardous in water resources [27].…”

Section: Introductionmentioning

confidence: 98%

“…Elsewhere, it was estimated that 50-95% of ENMs (nAg and nTiO 2 ) are released into water resources along the life cycle of NEPs [10]. Furthermore, environmental concentrations of ENMs in water systems differ from estimates from in silico studies [11][12][13][14][15]. For example, Ag and Ti' predicted environmental concentrations (PECs) are reported, respectively, as 0.7-16 µg/L [16][17][18][19], and 0.014-2.2 µg/L [18][19][20], while measured environmental concentrations (MECs) were quantified at 0.03-19.7 µg/L (Ag) [21][22][23], 0.67-150 µg/L (Ti) [12][13][14][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

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Assessment of Nanopollution from Commercial Products in Water Environments

Lehutso

Thwala

2021

Nanomaterials

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The use of nano-enabled products (NEPs) can release engineered nanomaterials (ENMs) into water resources, and the increasing commercialisation of NEPs raises the environmental exposure potential. The current study investigated the release of ENMs and their characteristics from six commercial products (sunscreens, body creams, sanitiser, and socks) containing nTiO2, nAg, and nZnO. ENMs were released in aqueous media from all investigated NEPs and were associated with ions (Ag+ and Zn2+) and coating agents (Si and Al). NEPs generally released elongated (7–9 × 66–70 nm) and angular (21–80 × 25–79 nm) nTiO2, near-spherical (12–49 nm) and angular nAg (21–76 × 29–77 nm), and angular nZnO (32–36 × 32–40 nm). NEPs released varying ENMs’ total concentrations (ca 0.4–95%) of total Ti, Ag, Ag+, Zn, and Zn2+ relative to the initial amount of ENMs added in NEPs, influenced by the nature of the product and recipient water quality. The findings confirmed the use of the examined NEPs as sources of nanopollution in water resources, and the physicochemical properties of the nanopollutants were determined. Exposure assessment data from real-life sources are highly valuable for enriching the robust environmental risk assessment of nanotechnology.

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Section: Socks 1 (Sk1) Product-released Enmsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

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Assessment of Nanopollution from Commercial Products in Water Environments

Lehutso

Thwala

2021

Nanomaterials

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“…Fe is the most abundant element in brake linings [95], and the content may vary depending on the type of lining [12,96,97]. Titanium dioxide nanomaterials (TiO2 NMs), the second most-produced nanomaterial worldwide [98], has been focused because it is released from these consumer products during their use phase and end-of-life and local environmental accumulation near nanomaterial manufacturing sites [99]. However, the high variability and concentrations compared to background of major elements in on-road PM10 at specific sites may represent significant on-road emissions of Fe and Ti from anthropogenic activities in those areas.…”

Section: Concentrations Of Ptesmentioning

confidence: 99%

Potentially Toxic Elements (PTEs) Composition and Human Health Risk Assessment of PM10 on the Roadways of Industrial Complexes in South Korea

Choi

Jeong

et al. 2021

Atmosphere

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Road and industrial origin particulate matters (PM) are a significant source of potentially toxic elements (PTEs), with health risks to the surrounding residents. In Korea for 60 years, although industries, roads and automobiles have increased aggressively, there are still few PTEs data in PM in road-deposited sediment (RDS) of industrial complexes (ICs). Therefore, this study aimed to investigate the PTE composition of on-road PM10 from nine major ICs and its pollution degree in Korea and evaluate its human health risks. The geo-accumulation index (Igeo) and pollution load index (PLI) elucidated that on-road PM10 were severely polluted by Sb, Zn, Ag and Pb. A combination of principal component analysis (PCA) and chemical tracers was used to define the PTEs sources. The results showed that non-exhaust emission from vehicles’ activity is the primary source of PTEs in on-road PM10, and industrial emissions are the secondary source. The riskiest pathway on carcinogenic and non-carcinogenic by on-road PM10 with PTEs was in-gestion. Traffic origin PTEs including Pb, As, Sb and Cd had a more significant impact on carcinogenic and non-carcinogenic health than those of industrial origins. These results could help mitigate public health risks arising from on-road PM10 and improve air quality in ICs.

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“…Studies investigating PR-ENMs in aquatic environments indicate that their presence in natural water environments can be predominantly linked to anthropogenic activities such as the release from nano-enabled sunscreens applied by swimmers or effluent discharges from ENMs and NEPs manufacturing industries [24][25][26][27][28][29][30][31][32][33][34][35][36]. The environmental exposure of PR-ENMs and subsequent bioavailability to organisms raises concerns due to limited information on hazard exposure potential and the uncertainty related to their risk.…”

Section: Introductionmentioning

confidence: 99%

Aquatic Toxicity Effects and Risk Assessment of ‘Form Specific’ Product-Released Engineered Nanomaterials

Lehutso

Wesley-Smith

Thwala

2021

IJMS

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The study investigated the toxicity effects of ‘form specific’ engineered nanomaterials (ENMs) and ions released from nano-enabled products (NEPs), namely sunscreens, sanitisers, body creams and socks on Pseudokirchneriella subcapitata, Spirodela polyrhiza, and Daphnia magna. Additionally, risk estimation emanating from the exposures was undertaken. The ENMs and the ions released from the products both contributed to the effects to varying extents, with neither being a uniform principal toxicity agent across the exposures; however, the effects were either synergistic or antagonistic. D. magna and S. polyrhiza were the most sensitive and least sensitive test organisms, respectively. The most toxic effects were from ENMs and ions released from sanitisers and sunscreens, whereas body creams and sock counterparts caused negligible effects. The internalisation of the ENMs from the sunscreens could not be established; only adsorption on the biota was evident. It was established that ENMs and ions released from products pose no imminent risk to ecosystems; instead, small to significant adverse effects are expected in the worst-case exposure scenario. The study demonstrates that while ENMs from products may not be considered to pose an imminent risk, increasing nanotechnology commercialization may increase their environmental exposure and risk potential; therefore, priority exposure cases need to be examined.

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Anthropogenic Release and Distribution of Titanium Dioxide Particles in a River Downstream of a Nanomaterial Manufacturer Industrial Site

Cited by 29 publications

References 39 publications

Assessment of Nanopollution from Commercial Products in Water Environments

Assessment of Nanopollution from Commercial Products in Water Environments

Potentially Toxic Elements (PTEs) Composition and Human Health Risk Assessment of PM10 on the Roadways of Industrial Complexes in South Korea

Aquatic Toxicity Effects and Risk Assessment of ‘Form Specific’ Product-Released Engineered Nanomaterials

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