Estimation of polycyclic aromatic hydrocarbon variability in air using high volume, film, and vegetation as samplers
Organic films and leaves provide a medium into which organic contaminants, such as polycyclic aromatic hydrocarbons (PAHs), can accumulate, resulting in a useful passive air sampler. In the present work, the temporal variability (weekly) in PAH concentrations and the fingerprint of films developed o...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Scacchi, Marco [verfasserIn] |
|---|
| Format: |
Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
2015 |
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| Schlagwörter: |
Environmental Monitoring - methods Polycyclic Hydrocarbons, Aromatic - analysis |
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| Übergeordnetes Werk: |
Enthalten in: Environmental science & technology - Washington, DC : ACS Publ., 1967, 49(2015), 9, Seite 5520 |
|---|---|
| Übergeordnetes Werk: |
volume:49 ; year:2015 ; number:9 ; pages:5520 |
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| 520 | |a Organic films and leaves provide a medium into which organic contaminants, such as polycyclic aromatic hydrocarbons (PAHs), can accumulate, resulting in a useful passive air sampler. In the present work, the temporal variability (weekly) in PAH concentrations and the fingerprint of films developed on window surfaces were investigated. Moreover, films and leaves of two tree species (Acer pseudoplatanus and Cornus mas) collected at the same time were used to derive PAH air concentrations and investigate their short-term variability. In general, the most abundant chemicals found in films were phenanthrene and pyrene (22%), followed by perylene (21%) and fluoranthene (16%), but the fingerprint (in contrast to leaves and air) changed over time. Leaf derived air concentrations were within a factor of 2 to 9 from measured values, while air concentrations back-calculated from films were within a factor of 2 to 53. This happened because predicted air concentrations using films and vegetation samplers (especially for low KOA chemicals) generally reflect only the last few hours (due to the fast equilibrium) of the weekly integrated samples obtained employing the high-volume sampler. This means that films and leaves can be usefully employed for predicting the short-term variability of low KOA organic contaminant air concentrations. | ||
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| 650 | 4 | |a Polycyclic Hydrocarbons, Aromatic - analysis | |
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| author |
Scacchi, Marco |
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Scacchi, Marco ddc 050 misc Environmental Monitoring - methods misc Plant Leaves - chemistry misc Plants - chemistry misc Polycyclic Hydrocarbons, Aromatic - analysis misc Air Pollutants - analysis misc Chemicals misc Leaves misc Polycyclic aromatic hydrocarbons misc Organic contaminants Estimation of polycyclic aromatic hydrocarbon variability in air using high volume, film, and vegetation as samplers |
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050 333.7 DNB Estimation of polycyclic aromatic hydrocarbon variability in air using high volume, film, and vegetation as samplers Environmental Monitoring - methods Plant Leaves - chemistry Plants - chemistry Polycyclic Hydrocarbons, Aromatic - analysis Air Pollutants - analysis Chemicals Leaves Polycyclic aromatic hydrocarbons Organic contaminants |
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ddc 050 misc Environmental Monitoring - methods misc Plant Leaves - chemistry misc Plants - chemistry misc Polycyclic Hydrocarbons, Aromatic - analysis misc Air Pollutants - analysis misc Chemicals misc Leaves misc Polycyclic aromatic hydrocarbons misc Organic contaminants |
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Estimation of polycyclic aromatic hydrocarbon variability in air using high volume, film, and vegetation as samplers |
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Estimation of polycyclic aromatic hydrocarbon variability in air using high volume, film, and vegetation as samplers |
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estimation of polycyclic aromatic hydrocarbon variability in air using high volume, film, and vegetation as samplers |
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Estimation of polycyclic aromatic hydrocarbon variability in air using high volume, film, and vegetation as samplers |
| abstract |
Organic films and leaves provide a medium into which organic contaminants, such as polycyclic aromatic hydrocarbons (PAHs), can accumulate, resulting in a useful passive air sampler. In the present work, the temporal variability (weekly) in PAH concentrations and the fingerprint of films developed on window surfaces were investigated. Moreover, films and leaves of two tree species (Acer pseudoplatanus and Cornus mas) collected at the same time were used to derive PAH air concentrations and investigate their short-term variability. In general, the most abundant chemicals found in films were phenanthrene and pyrene (22%), followed by perylene (21%) and fluoranthene (16%), but the fingerprint (in contrast to leaves and air) changed over time. Leaf derived air concentrations were within a factor of 2 to 9 from measured values, while air concentrations back-calculated from films were within a factor of 2 to 53. This happened because predicted air concentrations using films and vegetation samplers (especially for low KOA chemicals) generally reflect only the last few hours (due to the fast equilibrium) of the weekly integrated samples obtained employing the high-volume sampler. This means that films and leaves can be usefully employed for predicting the short-term variability of low KOA organic contaminant air concentrations. |
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Organic films and leaves provide a medium into which organic contaminants, such as polycyclic aromatic hydrocarbons (PAHs), can accumulate, resulting in a useful passive air sampler. In the present work, the temporal variability (weekly) in PAH concentrations and the fingerprint of films developed on window surfaces were investigated. Moreover, films and leaves of two tree species (Acer pseudoplatanus and Cornus mas) collected at the same time were used to derive PAH air concentrations and investigate their short-term variability. In general, the most abundant chemicals found in films were phenanthrene and pyrene (22%), followed by perylene (21%) and fluoranthene (16%), but the fingerprint (in contrast to leaves and air) changed over time. Leaf derived air concentrations were within a factor of 2 to 9 from measured values, while air concentrations back-calculated from films were within a factor of 2 to 53. This happened because predicted air concentrations using films and vegetation samplers (especially for low KOA chemicals) generally reflect only the last few hours (due to the fast equilibrium) of the weekly integrated samples obtained employing the high-volume sampler. This means that films and leaves can be usefully employed for predicting the short-term variability of low KOA organic contaminant air concentrations. |
| abstract_unstemmed |
Organic films and leaves provide a medium into which organic contaminants, such as polycyclic aromatic hydrocarbons (PAHs), can accumulate, resulting in a useful passive air sampler. In the present work, the temporal variability (weekly) in PAH concentrations and the fingerprint of films developed on window surfaces were investigated. Moreover, films and leaves of two tree species (Acer pseudoplatanus and Cornus mas) collected at the same time were used to derive PAH air concentrations and investigate their short-term variability. In general, the most abundant chemicals found in films were phenanthrene and pyrene (22%), followed by perylene (21%) and fluoranthene (16%), but the fingerprint (in contrast to leaves and air) changed over time. Leaf derived air concentrations were within a factor of 2 to 9 from measured values, while air concentrations back-calculated from films were within a factor of 2 to 53. This happened because predicted air concentrations using films and vegetation samplers (especially for low KOA chemicals) generally reflect only the last few hours (due to the fast equilibrium) of the weekly integrated samples obtained employing the high-volume sampler. This means that films and leaves can be usefully employed for predicting the short-term variability of low KOA organic contaminant air concentrations. |
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Estimation of polycyclic aromatic hydrocarbon variability in air using high volume, film, and vegetation as samplers |
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Terzaghi, Elisa Cerabolini, Bruno Di Guardo, Antonio Jones, Kevin C |
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