Seasonal variation and risk assessment of PM2.5 and PM2.5-10 in the ambient air of Kenitra, Morocco
The seasonal and spatial variations of particulate matter (PM2.5-10 and PM2.5) and its chemical composition have been studied over a one-year period in Kenitra city (2007-2008). The samples were collected using Gent stacked filters and dichotomous samplers in two size fractions: below 2.5 μm (fine) and 2.5 to 10 μm (coarse). The chemical compositions of the collected filters were evaluated by using Total X-ray Fluorescence and Atomic Absorption Spectroscopy. The influence of atmospheric transport scenarios on the levels of PM was elaborated by means of air mass back-trajectories, using the HYSPLIT™ model. This study allowed identifying four main transport patterns: short local flows over the Kenitra region, Northwesterly flows over the Atlantic Ocean, Northerly flows, and Southern flows. The highest PM2.5-10 concentrations were observed in the summer and the lowest in the winter. However, no significant seasonal variations were discerned for PM2.5 particles. The enrichment factor and risk assessment code were calculated to distinguish between anthropogenic influences and the natural background levels and assess the environmental risks of metals in PM2.5-10 and PM2.5 particles. A comparison of PM and metal concentrations in Kenitra city and other African cities (reported in the literature) revealed that that the values obtained in Kenitra city are significantly higher than those recorded for the other African cities (that are the subject of the comparison).
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2017 |
|---|---|
| Erschienen: |
2017 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:19 |
|---|---|
| Enthalten in: |
Environmental science. Processes & impacts - 19(2017), 11 vom: 15. Nov., Seite 1427-1436 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Tahri, Mounia [VerfasserIn] |
|---|
| Links: |
|---|
| Themen: |
|---|
| Anmerkungen: |
Date Completed 15.03.2018 Date Revised 02.12.2018 published: Print Citation Status MEDLINE |
|---|
| doi: |
10.1039/c7em00286f |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM277449170 |
|---|
| LEADER | 01000naa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM277449170 | ||
| 003 | DE-627 | ||
| 005 | 20231225014231.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 231225s2017 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1039/c7em00286f |2 doi | |
| 028 | 5 | 2 | |a pubmed24n0924.xml |
| 035 | |a (DE-627)NLM277449170 | ||
| 035 | |a (NLM)29077110 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Tahri, Mounia |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Seasonal variation and risk assessment of PM2.5 and PM2.5-10 in the ambient air of Kenitra, Morocco |
| 264 | 1 | |c 2017 | |
| 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 15.03.2018 | ||
| 500 | |a Date Revised 02.12.2018 | ||
| 500 | |a published: Print | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a The seasonal and spatial variations of particulate matter (PM2.5-10 and PM2.5) and its chemical composition have been studied over a one-year period in Kenitra city (2007-2008). The samples were collected using Gent stacked filters and dichotomous samplers in two size fractions: below 2.5 μm (fine) and 2.5 to 10 μm (coarse). The chemical compositions of the collected filters were evaluated by using Total X-ray Fluorescence and Atomic Absorption Spectroscopy. The influence of atmospheric transport scenarios on the levels of PM was elaborated by means of air mass back-trajectories, using the HYSPLIT™ model. This study allowed identifying four main transport patterns: short local flows over the Kenitra region, Northwesterly flows over the Atlantic Ocean, Northerly flows, and Southern flows. The highest PM2.5-10 concentrations were observed in the summer and the lowest in the winter. However, no significant seasonal variations were discerned for PM2.5 particles. The enrichment factor and risk assessment code were calculated to distinguish between anthropogenic influences and the natural background levels and assess the environmental risks of metals in PM2.5-10 and PM2.5 particles. A comparison of PM and metal concentrations in Kenitra city and other African cities (reported in the literature) revealed that that the values obtained in Kenitra city are significantly higher than those recorded for the other African cities (that are the subject of the comparison) | ||
| 650 | 4 | |a Journal Article | |
| 650 | 7 | |a Air Pollutants |2 NLM | |
| 650 | 7 | |a Particulate Matter |2 NLM | |
| 700 | 1 | |a Benchrif, Abdelfettah |e verfasserin |4 aut | |
| 700 | 1 | |a Bounakhla, Moussa |e verfasserin |4 aut | |
| 700 | 1 | |a Benyaich, Fouad |e verfasserin |4 aut | |
| 700 | 1 | |a Noack, Yves |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Environmental science. Processes & impacts |d 2013 |g 19(2017), 11 vom: 15. Nov., Seite 1427-1436 |w (DE-627)NLM224937480 |x 2050-7895 |7 nnns |
| 773 | 1 | 8 | |g volume:19 |g year:2017 |g number:11 |g day:15 |g month:11 |g pages:1427-1436 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1039/c7em00286f |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 19 |j 2017 |e 11 |b 15 |c 11 |h 1427-1436 | ||