Evidence and Mass Quantification of Atmospheric Microplastics in a Coastal New Zealand City
This study investigated the atmospheric deposition of microplastics (MPs) in Auckland, New Zealand, from two sampling sites over a 9-week period. The sizes, morphologies, number counts, and mass concentrations of specific polymers were determined for airborne MPs using a combination of a Nile Red-assisted automated fluorescence microscopy technique in series with pyrolysis-gas chromatography-mass spectrometry (Pyr-GC/MS). This enabled a larger number of MPs to be analyzed from each sample compared to traditional spectroscopic techniques. Microplastic number concentrations increased exponentially with decreasing size. The results show the importance of using consistent methodologies and size cutoffs when comparing microplastic data between studies. Eight polymers were quantified in the atmospheric deposition samples, with polyethylene (PE), polycarbonate (PC), and poly(ethylene terephthalate) (PET) being the most commonly observed. The largest MP deposition rates at an urban rooftop correlated with winds originating from the marine environment with speeds between 15 and 20 m s-1, indicating that airborne MPs in coastal regions may originate from wave-breaking mechanisms. This study represents the first report of using Pyr-GC/MS to determine the chemical compositions and mass concentrations of atmospheric microplastics, along with corresponding data on their sizes, morphologies, and number counts.
Medienart: |
E-Artikel |
---|
Erscheinungsjahr: |
2022 |
---|---|
Erschienen: |
2022 |
Enthalten in: |
Zur Gesamtaufnahme - volume:56 |
---|---|
Enthalten in: |
Environmental science & technology - 56(2022), 24 vom: 20. Dez., Seite 17556-17568 |
Sprache: |
Englisch |
---|
Beteiligte Personen: |
Fan, Wenxia [VerfasserIn] |
---|
Links: |
---|
Themen: |
Aerosol |
---|
Anmerkungen: |
Date Completed 21.12.2022 Date Revised 05.01.2023 published: Print-Electronic Citation Status MEDLINE |
---|
doi: |
10.1021/acs.est.2c05850 |
---|
funding: |
|
---|---|
Förderinstitution / Projekttitel: |
|
PPN (Katalog-ID): |
NLM349716986 |
---|
LEADER | 01000naa a22002652 4500 | ||
---|---|---|---|
001 | NLM349716986 | ||
003 | DE-627 | ||
005 | 20231226043305.0 | ||
007 | cr uuu---uuuuu | ||
008 | 231226s2022 xx |||||o 00| ||eng c | ||
024 | 7 | |a 10.1021/acs.est.2c05850 |2 doi | |
028 | 5 | 2 | |a pubmed24n1165.xml |
035 | |a (DE-627)NLM349716986 | ||
035 | |a (NLM)36459143 | ||
040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
041 | |a eng | ||
100 | 1 | |a Fan, Wenxia |e verfasserin |4 aut | |
245 | 1 | 0 | |a Evidence and Mass Quantification of Atmospheric Microplastics in a Coastal New Zealand City |
264 | 1 | |c 2022 | |
336 | |a Text |b txt |2 rdacontent | ||
337 | |a ƒaComputermedien |b c |2 rdamedia | ||
338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
500 | |a Date Completed 21.12.2022 | ||
500 | |a Date Revised 05.01.2023 | ||
500 | |a published: Print-Electronic | ||
500 | |a Citation Status MEDLINE | ||
520 | |a This study investigated the atmospheric deposition of microplastics (MPs) in Auckland, New Zealand, from two sampling sites over a 9-week period. The sizes, morphologies, number counts, and mass concentrations of specific polymers were determined for airborne MPs using a combination of a Nile Red-assisted automated fluorescence microscopy technique in series with pyrolysis-gas chromatography-mass spectrometry (Pyr-GC/MS). This enabled a larger number of MPs to be analyzed from each sample compared to traditional spectroscopic techniques. Microplastic number concentrations increased exponentially with decreasing size. The results show the importance of using consistent methodologies and size cutoffs when comparing microplastic data between studies. Eight polymers were quantified in the atmospheric deposition samples, with polyethylene (PE), polycarbonate (PC), and poly(ethylene terephthalate) (PET) being the most commonly observed. The largest MP deposition rates at an urban rooftop correlated with winds originating from the marine environment with speeds between 15 and 20 m s-1, indicating that airborne MPs in coastal regions may originate from wave-breaking mechanisms. This study represents the first report of using Pyr-GC/MS to determine the chemical compositions and mass concentrations of atmospheric microplastics, along with corresponding data on their sizes, morphologies, and number counts | ||
650 | 4 | |a Journal Article | |
650 | 4 | |a Research Support, Non-U.S. Gov't | |
650 | 4 | |a aerosol | |
650 | 4 | |a atmosphere | |
650 | 4 | |a fluorescence microscopy | |
650 | 4 | |a microplastics | |
650 | 4 | |a particulate matter | |
650 | 4 | |a pyrolysis GC/MS | |
650 | 7 | |a Microplastics |2 NLM | |
650 | 7 | |a Plastics |2 NLM | |
650 | 7 | |a Water Pollutants, Chemical |2 NLM | |
650 | 7 | |a Polymers |2 NLM | |
700 | 1 | |a Salmond, Jennifer A |e verfasserin |4 aut | |
700 | 1 | |a Dirks, Kim N |e verfasserin |4 aut | |
700 | 1 | |a Cabedo Sanz, Patricia |e verfasserin |4 aut | |
700 | 1 | |a Miskelly, Gordon M |e verfasserin |4 aut | |
700 | 1 | |a Rindelaub, Joel D |e verfasserin |4 aut | |
773 | 0 | 8 | |i Enthalten in |t Environmental science & technology |d 1967 |g 56(2022), 24 vom: 20. Dez., Seite 17556-17568 |w (DE-627)NLM112374735 |x 1520-5851 |7 nnns |
773 | 1 | 8 | |g volume:56 |g year:2022 |g number:24 |g day:20 |g month:12 |g pages:17556-17568 |
856 | 4 | 0 | |u http://dx.doi.org/10.1021/acs.est.2c05850 |3 Volltext |
912 | |a GBV_USEFLAG_A | ||
912 | |a GBV_NLM | ||
951 | |a AR | ||
952 | |d 56 |j 2022 |e 24 |b 20 |c 12 |h 17556-17568 |