PMID- 26635222
OWN - NLM
STAT- MEDLINE
DCOM- 20161213
LR  - 20181202
IS  - 1614-7499 (Electronic)
IS  - 0944-1344 (Linking)
VI  - 23
IP  - 7
DP  - 2016 Apr
TI  - Aerosol composition and properties variation at the ground and over the column 
      under different air masses advection in South Italy.
PG  - 6546-62
LID - 10.1007/s11356-015-5860-1 [doi]
AB  - Aerosol composition and properties variation under the advection of different air 
      masses were investigated, as case studies, by contemporary measurements over the 
      atmospheric column and at the ground in a semi-rural site in South Italy. The 
      absence of local strong sources in this area allowed to characterize background 
      aerosol and to compare particle mixing effects under various atmospheric 
      circulation conditions. Aerosol optical depth (AOD) and Angstrom parameters from 
      radiometric measurements allowed the detection and identification of polluted, 
      dust, and volcanic atmospheric conditions. AODs were the input for a suitable 
      model to evaluate the columnar aerosol composition, according to six main 
      atmospheric components (water-soluble, soot, sea salt accumulation, sea salt 
      coarse, mineral dus,t and biological). Scanning electron microscope (SEM) 
      analysis of particulate sampled with a 13-stage impactor at the ground showed not 
      only fingerprints typical of the different air masses but also the effects of 
      transport and aging on atmospheric particles, suggesting processes that changed 
      their chemical and optical properties. Background columnar aerosol was 
      characterized by 72% of water-soluble and soot, in agreement with ground-based 
      findings that highlighted 60% of contribution from anthropogenic carbonate 
      particles and soot. In general, a good agreement between ground-based and 
      columnar results was observed. Under the advection of trans-boundary air masses, 
      water-soluble and soot were always present in columnar aerosol, whereas, in 
      variable percentages, sea salt and mineral particles characterized both dust and 
      volcanic conditions. At the ground, sulfates characterized the amorphous matrix 
      produced in finer stages by the evaporation of solutions of organic and inorganic 
      aerosols. Sulfates were also one of the key players involved in heterogeneous 
      chemical reactions, producing complex secondary aerosol, as such clay-sulfate 
      internally mixed particle externally mixed with soot chains.
FAU - Pavese, G
AU  - Pavese G
AD  - Consiglio Nazionale delle Ricerche-Istituto di Metodologie per l'Analisi 
      Ambientale (CNR-IMAA), C.da S. Loja, 85050, Tito Scalo, Potenza, Italy. 
      giulia.pavese@imaa.cnr.it.
FAU - Lettino, A
AU  - Lettino A
AD  - Consiglio Nazionale delle Ricerche-Istituto di Metodologie per l'Analisi 
      Ambientale (CNR-IMAA), C.da S. Loja, 85050, Tito Scalo, Potenza, Italy.
FAU - Calvello, M
AU  - Calvello M
AD  - Consiglio Nazionale delle Ricerche-Istituto di Metodologie per l'Analisi 
      Ambientale (CNR-IMAA), C.da S. Loja, 85050, Tito Scalo, Potenza, Italy.
FAU - Esposito, F
AU  - Esposito F
AD  - Universita della Basilicata-Scuola di Ingegneria, C.da Macchia Romana, 85100, 
      Potenza, Italy.
FAU - Fiore, S
AU  - Fiore S
AD  - Consiglio Nazionale delle Ricerche-Istituto di Metodologie per l'Analisi 
      Ambientale (CNR-IMAA), C.da S. Loja, 85050, Tito Scalo, Potenza, Italy.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20151204
PL  - Germany
TA  - Environ Sci Pollut Res Int
JT  - Environmental science and pollution research international
JID - 9441769
RN  - 0 (Aerosols)
RN  - 0 (Air Pollutants)
RN  - 0 (Dust)
RN  - 0 (Soot)
RN  - 0 (Sulfates)
SB  - IM
MH  - Aerosols
MH  - Air Pollutants/*analysis
MH  - Dust/*analysis
MH  - Environmental Monitoring/*methods
MH  - Italy
MH  - *Models, Theoretical
MH  - Solubility
MH  - Soot/*analysis
MH  - Sulfates/*analysis
MH  - Surface Properties
OTO - NOTNLM
OT  - Aerosol mixing effects
OT  - Atmospheric aerosol
OT  - Gravimetric measurements
OT  - Radiometric measurements
OT  - SEM-EDX analysis
OT  - Trans-boundary aerosol
EDAT- 2015/12/05 06:00
MHDA- 2016/12/15 06:00
CRDT- 2015/12/05 06:00
PHST- 2015/06/30 00:00 [received]
PHST- 2015/11/23 00:00 [accepted]
PHST- 2015/12/05 06:00 [entrez]
PHST- 2015/12/05 06:00 [pubmed]
PHST- 2016/12/15 06:00 [medline]
AID - 10.1007/s11356-015-5860-1 [pii]
AID - 10.1007/s11356-015-5860-1 [doi]
PST - ppublish
SO  - Environ Sci Pollut Res Int. 2016 Apr;23(7):6546-62. doi: 
      10.1007/s11356-015-5860-1. Epub 2015 Dec 4.