Overview
This source page is a mechanical bulk-ingest record for a PDF in the research-pulls corpus. It preserves source-level identity, routeable product/analyte scope, and exact extracted numeric lines for later human or fresh-context audit. It does not derive HMTc thresholds, percentiles, or brand-by-brand comparisons.
Key numbers
The worker extracted the full PDF text with layout preservation twice and compared extraction hashes before commit. The following lines are copied from numeric/table-bearing regions of the PDF and retain the source units and wording where legible:
- understanding and insight into the fate of PPE under environmental of PPE in environment (n = 9), the attribution of PPE to micro- and
- conditions. Despite its potentially important role in shaping public nano- plastics (n = 9), and the presence of organic and inorganic con
- health, PPE, particularly face masks, has emerged as a major environ taminants in PPE (n = 4). Table S1 provides a compiled list of publi
- increasingly active research efforts in multiple directions to bring novel Tables 1–3 and Fig. 1.
- scientific-based review of recent advances in PPE environmental the study (floating PPE debris) (Table 1). Six of the nine studies exam
-
- street margins contributed < 1% of total mass (2020)
- December 2020) site 63%) in different sampling et al. (2021)
- approximately 5 m along the 2. 89.8% of masks were single use.
- Jakarta Bay, Riverine River water Every 10 days; 1. A 75 m-long, 1.5 m-deep net 1. PPE constituted 16% of total Cordova et al.
- constituted 9.3% of total debris
- Bangladesh Beach Coastline 84 days (November Used transects upto 2 m vegetation 1. Face masks: 97.92% of total Rakib et al.
- Canada City Street, under cars, May 27 – June 30 Collected debris that was ~1 m and 1. Face masks constituted 31% (n Ammendolia
- grocery, and sidewalk 2. 95% of disposable face masks,
- hospital zones 3% reusable masks, and only 2
- 25% of total plastic debris
- Morocco Beach Coastline 112 days (01 Methodology as described by 1. Face masks: 98.4%; Reusable Haddad et al.
- February – 30 May De-la-Torre et al. (2021) cloth masks: 1.6%. (2021)
- masks, day prior to the at 120 rpm for 24 pre-washed with 0.8 µm New masks: orange, blue,
- masks artificial masks was taken nitrocellulose of 0.07%)
- surgical drug sales office L of ultrapure were repeated membrane; micro-FTIR and DI: 80% < 1 mm, (2021)
- masks) 2. Pre-washed were cleaned 0.47%)
- 75% alcohol cleaned with disinfectant:
- Table 2 (continued )
- of 0.9% NaCl); external frequency
- Table 2 (continued )
- Chile, Bangladesh, Persian Gulf, and Morocco) (Table 1). The lower Given the prevalence of face masks and wipes found in recent sur
- of the environments studied (Table 1). Face masks (disposable medical, centralized guidance, particularly on tourism beaches, about where to
- PPE debris (Table 1). Moreover, face masks accounted for 80 – 98% of all indicated an unprecedented prevalence and growth of PPE in plastic
- Table 3 (continued )
-
- PPE degradation and microplastics discharge into size ranges and abundances between studies. Microplastics, for example,
- nano-plastics by PPE. As shown in Table 2 and Fig. 1b, researchers have QC measures. Preliminary steps included maintaining a clean laboratory
- have received the most attention (n = 8) in comparison to other PPE inhalation, the experiments were not conducted in a super-clean labo
- materials (n = 1; disinfectant wipes) due to their widespread produc ratory and no contamination control measures were used. All glassware
- and nano-plastics release ability. The majority of studies (n = 5) focused prevent contamination in the experimental analysis. Pre-cleaned metal
- pure water, washing with detergents and disinfectants, mechanical sand (n = 2) were run with each batch of analysis. While, in the experimental
- lost due to fragmentation/degradation. Apart from the aging experi et al., 2021). As seen in Table 2, all of the tested PPE (masks and wipes)
- than 80% of the total. They ranged in size from 5 nm to > 2000 µm, with China being studied the most in the studies reviewed (Table 3). They
- used (Table 2). Nevertheless, it is important to bear in mind that the alongside masks because they can be a source of chemicals once they
- (2021) found a variety of colored microplastics released from masks, (Table 3). For elemental analysis, the leachate can be acidified further
- breakdown is also likely to be a source of mesoplastics (> 5 - < 25 mm) detected in the second extraction and never exceeded 5% of their cor
- plastic additives (Supplementary Material Table S2). It is worth noting accumulation of PPE litter, like any other plastic waste, poses a number
- like cadmium (up to 1.92 μg/L), antimony (up to 393 μg/L) and copper plastics released from PPE by terrestrial organisms (earthworm Eisenia
Methods (brief)
- and nano-plastics. current analytical methods, sampling procedures, sample processing,
- Furthermore, accurate data requires proper sample processing, identi shorelines, there has been an increased interest in determining and
- will be useful in the development of their own investigations. Further collection. Thiel et al. (2021) collected PPE washed up by the last high
- research directions. 2021). In the case of a street survey, PPE litter was collected as close to
- South Africa Urban Street 50 days (April – June Litter was collected from 400 m of 1. Face masks and gloves Ryan et al.
- 2020 – January for each sampling site PPE collected, (2021)
-
- Sampled area: 516,683 m2 of 2. Density: 6.29 × 10− 3 PPE m− 2
- Sampled area: 110,757 m2 of 11 beaches
- sampled area 2. -A total of 26 wet wipes were
- Canada City Street, under cars, May 27 – June 30 Collected debris that was ~1 m and 1. Face masks constituted 31% (n Ammendolia
- Type of PPE Sample Experimental QA/QC Filter and Quantification Abundance Characteristics Reference
- samples used as refer
- Type of PPE Sample Experimental QA/QC Filter and Quantification Abundance Characteristics Reference
- Ecoparksg Purchased from 1. Exposed to UV 1. Control samples SEM, FTIR-ATR, Without sand Fiber fragments, Wang
- was collected for each scenario 1 mm are found
- s and 50 mg of 7. Mucus collected
- collected without wearing
- Type of PPE Sample Experimental QA/QC Filter and Quantification Abundance Characteristics Reference
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Update history
The five most recent substantive edits to this page, classified major (evidence or structure moved), correction (a published value or statement was wrong and has been fixed), or minor (narrative rewritten without changing the underlying evidence). Each description is derived from what the edit did to this page; the linked commit is the authoritative record, routine regeneration passes are excluded, and the full version history lives in git. When DOI minting comes online (see schema docs), each entry below will also link to a version-pinned DataCite DOI.