@Article{acp-12-8341-2012,
AUTHOR = {Cusack, M. and Alastuey, A. and P\'erez, N. and Pey, J. and Querol, X.},
TITLE = {Trends of particulate matter (PM$_{2.5}$) and chemical composition at a regional background site in the Western Mediterranean over the last nine years (2002–2010)},
JOURNAL = {Atmospheric Chemistry and Physics},
VOLUME = {12},
YEAR = {2012},
NUMBER = {18},
PAGES = {8341--8357},
URL = {http://www.atmos-chem-phys.net/12/8341/2012/},
DOI = {10.5194/acp-12-8341-2012}
}