Atmospheric microplastic transport and deposition to urban and pristine tropical locations in Southeast Asia

Hee, Yet Yin; Hanif, Norfazrin Mohd; Weston, Keith; Latif, Mohd Talib; Suratman, Suhaimi; Rusli, Mohd Uzair; Mayes, Andrew G.

doi:10.1016/j.scitotenv.2023.166153

Cited by 24 publications

(3 citation statements)

References 64 publications

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“…The factors with high PCA contributions and significant correlation coefficients with microplastic abundance were selected as the RF model input variables. For meteorological factors, the impacts of temperature and wind speed/direction were more reflected in seasonal variations than interannual variations. , Precipitation in the HML region has been observed historical changes (Figure S9), which has been proven to affect the sedimentary records of organic matter and mercury in HML. Therefore, we put local precipitation as one of the inputs to the RF model.…”

Section: Methodsmentioning

confidence: 99%

Centennial Records of Microplastics in Lake Cores in Huguangyan Maar Lake, China

Ji,

Zhang,

Xia

et al. 2024

Environ. Sci. Technol.

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Section: Methodsmentioning

confidence: 99%

Centennial Records of Microplastics in Lake Cores in Huguangyan Maar Lake, China

Ji,

Zhang,

Xia

et al. 2024

Environ. Sci. Technol.

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“…Micro- and nanoplastics (MNPs) are gaining increasing attention currently. − Since the first evidence of microplastics (MPs) in human feces in 2019, they have been found in various human biological samples such as saliva, sputum, liver, breastmilk, lung, and blood. − This suggests that MPs can be transported throughout the body via circulation. In vitro experiments suggest that MNP toxicity to human cells may result from membrane damage, oxidative stress, immune response, and genotoxicity. − Monomers and additives (e.g., stabilizers and plasticizers) may leach from the MNPs inside the organism, exposing the tissues to hazardous chemicals such as phthalates and bisphenol A .…”

Section: Introductionmentioning

confidence: 99%

Probabilistic Estimation of Airborne Micro- and Nanoplastic Intake in Humans

Chen,

Meng,

Liu

et al. 2024

Environ. Sci. Technol.

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Little research exists on the magnitude, variability, and uncertainty of human exposure to airborne micro- and nanoplastics (AMNPs), despite their critical role in human exposure to MNPs. We probabilistically estimate the global intake of AMNPs through three main pathways: indoor inhalation, outdoor inhalation, and ingestion during indoor meals, for both children and adults. The median inhalation of AMPs is 1,207.7 (90% CI, 42.5–8.48 × 104) and 1,354.7 (90% CI, 47.4–9.55 × 104) N/capita/day for children and adults, respectively. The annual intake of AMPs is 13.18 mg/capita/a for children and 19.10 mg/capita/a for adults, which is approximately one-fifth and one-third of the mass of a standard stamp, assuming a consistent daily intake of medians. The majority of AMP number intake occurs through inhalation, while the ingestion of deposited AMPs during meals contributes the most in terms of mass. Furthermore, the median ANP intake through outdoor inhalation is 9,638.1 N/day (8.23 × 10–6 μg/d) and 5,410.6 N/day (4.62 × 10–6 μg/d) for children and adults, respectively, compared to 5.30 × 105 N/day (5.79 × 10–4 μg/d) and 6.00 × 105 N/day (6.55 × 10–4 μg/d) via indoor inhalation. Considering the increased toxicity of smaller MNPs, the significant number of ANPs inhaled warrants great attention. Collaborative efforts are imperative to further elucidate and combat the current MPN risks.

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“…MPs have been detected in all environmental compartments, including aquatic [8][9][10][11][12] and terrestrial ecosystems [13][14][15][16], and the atmosphere [17][18][19][20][21][22]. Furthermore, MPs have been found in animal [23][24][25][26][27] and plant tissues [28,29], and even in human blood [30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Robinia pseudoacacia L. (Black Locust) Leaflets as Biomonitors of Airborne Microplastics

Jafarova,

Grifoni,

Renzi

et al. 2023

Biology

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Here we investigate the suitability of Robinia pseudoacacia L. (black locust) leaflets as a novel biomonitor of airborne microplastics (MPs) including tyre wear particles (TWPs). Leaflets were collected from rural roadside locations (ROs, n = 5) and urban parks (UPs, n = 5) in Siena, Italy. MPs were removed by washing, identified by stereomicroscope, and analysed for polymer type by Fourier transform infrared spectroscopy. Daily MP deposition was estimated from leaf area. The mass magnetic susceptibility and the bioaccumulation of traffic-related potentially toxic elements (PTEs) were also analysed. The total number of MPs at ROs was significantly higher at 2962, dominated by TWPs, compared with 193 in UPs, where TWPs were not found. In contrast, total microfibres were significantly higher in UPs compared with ROs (185 vs. 86). Daily MP deposition was estimated to range from 4.2 to 5.1 MPs/m2/d across UPs and 29.9–457.6 MPs/m2/d across ROs. The polymer types at ROs were dominated by rubber (80%) from TWPs, followed by 15% polyamide (PA) and 5% polysulfone (PES), while in UPs the proportion of PES (44%) was higher than PA (22%) and polyacrylonitrile (11%). The mean mass magnetic susceptibility, a proxy of the bioaccumulation of traffic-related metallic particles, was higher at ROs (0.62 ± 0.01 10–8 m3/kg) than at UPs (–0.50 ± 0.03 10–8 m3/kg). The content of PTEs was similar across sites, except for significantly higher concentrations of Sb, a tracer of vehicle brake wear, at ROs (0.308 ± 0.008 µg/g) compared with UPs (0.054 ± 0.006 µg/g). Our results suggest that the waxy leaflets and easy determination of surface area make Robinia an effective biomonitor for airborne MPs including TWPs.

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Atmospheric microplastic transport and deposition to urban and pristine tropical locations in Southeast Asia

Cited by 24 publications

References 64 publications

Centennial Records of Microplastics in Lake Cores in Huguangyan Maar Lake, China

Centennial Records of Microplastics in Lake Cores in Huguangyan Maar Lake, China

Probabilistic Estimation of Airborne Micro- and Nanoplastic Intake in Humans

Robinia pseudoacacia L. (Black Locust) Leaflets as Biomonitors of Airborne Microplastics

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