L. Clancy, P. Goodman, S. H. Dockery, and D. , an intervention study Lancet, vol.360, pp.1210-1214, 2002.

J. Kettunen, T. Lanki, P. Tiittanen, P. Aalto, T. Koskentalo et al., Associations of fine and ultrafine particulate air pollution with stroke mortality in an area of low air pollution levels Stroke, vol.38, pp.918-940, 2007.

C. Pope, . Iii, M. Thun, M. Namboodiri, D. Dockery et al., Particulate air pollution as a predictor of mortality in a prospective study of U.S. adults, Am. J. Respir. Crit. Care Med, vol.151, pp.669-74, 1995.

U. Franck, S. Odeh, A. Wiedensohler, B. Wehner, and O. Herbarth, The effect of particle size on cardiovascular disordersthe smaller the worse, Sci. Total Environ, vol.409, pp.4217-4238, 2011.

J. Schwartz and L. Neas, Fine particles are more strongly associated than coarse particles with acute respiratory health effects in schoolchildren, Epidemiology, vol.11, pp.6-10, 2000.

V. Stone, H. Johnston, and M. Clift, Air pollution, ultrafine and nanoparticle toxicology: cellular and molecular interactions, IEEE Trans. Nanobiosci, vol.6, pp.331-371, 2007.

, The Danish Ecocouncil 2012 Air pollution in airports Publication No, pp.990-120425, 2015.

K. Moller, L. Thygesen, J. Schipperijn, S. Loft, J. Bonde et al., Occupational exposure to ultrafine particles among airport employees-combining personal monitoring and global positioning system, PloS One, vol.9, p.106671, 2014.

L. Touri, H. Marchetti, I. Sari-minodier, N. Molinari, and P. Chanez, The airport atmospheric environment: respiratory health at work, Eur. Respir. J, vol.22, pp.124-154, 2013.

A. Nemmar, M. Hoylaerts, P. Hoet, J. Vermylen, and B. Nemery, Size effect of intratracheally instilled particles on pulmonary inflammation and vascular thrombosis, Toxicol. Appl. Pharmacol, vol.186, pp.38-45, 2003.

G. Oberdorster, E. Oberdorster, and J. Oberdorster, Nanotoxicology: an emerging discipline evolving from studies of ultrafine particles Environ. Health Perspect, vol.113, pp.823-862, 2005.

W. Tunnicliffe, O. Hickey, S. Fletcher, T. Miles, J. Burge et al., Pulmonary function and respiratory symptoms in a population of airport workers, Occup. Environ. Med, vol.56, pp.118-141, 1999.

N. Mills, Do inhaled carbon nanoparticles translocate directly into the circulation in humans?, Am. J. Respir. Crit. Care Med, vol.173, pp.426-457, 2006.

G. Mutlu, K. Garey, R. Robbins, L. Danziger, and I. Rubinstein, Collection and analysis of exhaled breath condensate in humans Am, J. Respir. Crit. Care Med, vol.164, pp.731-738, 2001.

A. Bredberg, J. Gobom, A. Almstrand, P. Larsson, K. Blennow et al., Exhaled endogenous particles contain lung proteins, Clin. Chem, vol.58, pp.431-471, 2012.

C. Desvergne, M. Dubosson, M. Lacombe, V. Brun, and V. Mossuz, Nanoparticle exposure biological monitoring: exposure/ effect indicator development approaches, J. Phys.: Conf. Ser, vol.617, p.12005, 2015.

M. Fumagalli, Profiling the proteome of exhaled breath condensate in healthy smokers and COPD patients by LC-MS/MS, Int. J. Mol. Sci, vol.13, pp.13894-910, 2012.

J. Sauvain, M. Hohl, P. Wild, J. Pralong, and M. Riediker, Exhaled breath condensate as a matrix for combustion-based nanoparticle exposure and health effect evaluation, J. Aerosol. Med. Pulm. Drug Deliv, vol.27, pp.449-58, 2014.

S. Benor, Y. Alcalay, K. Domany, G. Gut, R. Soferman et al., Ultrafine particle content in exhaled breath condensate in airways of asthmatic children, J. Breath Res, vol.9, p.26001, 2015.

A. Mutti, M. Corradi, M. Goldoni, M. Vettori, B. A. Apostoli et al., Exhaled metallic elements and serum pneumoproteins in asymptomatic smokers and patients with COPD or asthma, Chest, vol.129, pp.1288-97, 2006.

H. Broding, B. Michalke, T. Goen, and H. Drexler, Comparison between exhaled breath condensate analysis as a marker for cobalt and tungsten exposure and biological monitoring in workers of a hard metal alloy processing plant, Int. Arch. Occup. Environ. Health, vol.82, pp.565-73, 2009.

A. Caglieri, M. Goldoni, O. Acampa, R. Andreoli, M. Vettori et al., The effect of inhaled chromium on different exhaled breath condensate biomarkers among chrome-plating workers Environ. Health Perspect, vol.114, pp.542-548, 2006.

M. Goldoni, A. Caglieri, D. Palma, G. Acampa, O. Gergelova et al., Chromium in exhaled breath condensate (EBC), erythrocytes, plasam and urine in the biological monitoring of chrome-plating workers exposed to soluble Cr(VI), J. Envion. Monit, vol.12, pp.442-449, 2010.

M. Goldoni, S. Catalani, D. Palma, G. Manini, P. Acampa et al., Exhaled breath condensate as a suitable matrix to assess lung dose and effects in workers exposed to cobalt and tungsten Environ. Health Perspect, vol.112, pp.1293-1301, 2004.

E. Zimmermann, S. Derrough, D. Locatelli, C. Durand, J. Fromaget et al., Results of potential exposure assessments during the maintenance and cleanout of deposition equipment, J. Nanopart. Res, vol.14, p.1209, 2012.

I. Horvath, Exhaled breath condensate: methodological recommendations and unresolved questions, Eur. Respir. J, vol.26, pp.523-571, 2005.

P. Kumar, L. Morawska, W. Birmili, P. Paasonen, M. Hu et al., Ultrafine particles in cities Environ. Int, vol.66, pp.1-10, 2014.

P. Kumar, A. Robins, S. Vardoulakis, and R. Britter, A review of the characteristics of nanoparticles in the urban atmosphere and the prospects for developing regulatory controls, Atmos. Environ, vol.44, pp.5035-52, 2010.

P. Kumar, L. Pirjola, M. Ketzel, and R. Harrison, Nanoparticle emissions from 11 non-vehicle exhaust sources-a review, Atmos. Environ, vol.67, pp.252-77, 2013.

D. Edwards, J. Man, P. Brand, J. Katstra, K. Sommerer et al., Inhaling to mitigate exhaled bioaerosols Proc, Natl Acad. Sci. USA, vol.101, pp.17383-17391, 2004.

M. Corradi, O. Acampa, M. Goldoni, R. Andreoli, D. Milton et al., Metallic elements in exhaled breath condensate and serum of patients with exacerbation of chronic obstructive pulmonary disease Metallomics, vol.1, pp.339-384, 2009.

J. Fox, E. Spannhake, K. Macri, C. Torrey, J. Mihalic et al., Characterization of a portable method for the collection of exhaled breath condensate and subsequent analysis of metal content, Environ. Sci. Process. Impacts, vol.15, pp.721-730, 2013.

M. Corradi, O. Acampa, M. Goldoni, E. Adami, P. Apostoli et al., Metallic elements in exhaled breath condensate of patients with interstitial lung diseases, J. Breath Res, vol.3, p.46003, 2009.

M. Goldoni, A. Caglieri, M. Corradi, D. Poli, M. Rusca et al., Chromium in exhaled breath condensate and pulmonary tissue of non-small cell lung cancer patients, Int. Arch. Occup. Environ. Health, vol.81, pp.487-93, 2008.

F. Hoffmeyer, Increased metal concentrations in exhaled breath condensate of industrial welders, J. Envion. Monit, vol.13, pp.212-220, 2011.

F. Hoffmeyer, Impact of different welding techniques on biological effect markers in exhaled breath condensate of 58 mild steel welders, J. Toxicol. Environ. Health A, vol.75, pp.525-557, 2012.

J. Edme, Cytokine concentrations in exhaled breath condensates in systemic sclerosis Inflammation Res, vol.57, pp.151-157, 2008.

R. Effros, J. Biller, B. Foss, K. Hoagland, M. Dunning et al., A simple method for estimating respiratory solute dilution in exhaled breath condensates, Am. J. Respir. Crit. Care Med, vol.168, pp.1500-1505, 2003.

C. Gessner, H. Kuhn, H. Seyfarth, H. Pankau, J. Winkler et al., Factors influencing breath condensate volume Pneumologie, vol.55, pp.414-423, 2001.

K. Garey, M. Neuhauser, R. Robbins, L. Danziger, and I. Rubinstein, Markers of inflammation in exhaled breath condensate of young healthy smokers, Chest, vol.125, pp.22-28, 2004.