Time-resolved measurements of aerosol elemental concentrations in indoor working environments

Žitnik, M.; Kastelic, A.; Rupnik, Zdravko; Pelicon, Primož; Vaupetič, Primož; Bučar, K.; Novak, Saša; Samardžija, Zoran; Matsuyama, S.; Catella, G.

doi:10.1016/j.atmosenv.2010.08.017

Cited by 13 publications

(12 citation statements)

References 31 publications

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“…Similar to PM 10 , the Ca concentration increase is observed to depend on the number of practicing people with a slope of 5 ng/m 3 per person. An increase of Ca concentration correlated with the people's presence was reported previously (Žitnik et al., ) and is typical for the indoor atmosphere. The trends of other analyzed elements such as Fe, Cr, and Cu display a few occasional spikes that may be generated by hitting the ball hard against metal constructions, such as goal frames, basketball rings, volleyball net supports, or instrument shielding, and the analysis shows no significant correlation with the number of exercising people (for Fe the correlation coefficient is 0.02).…”

Section: Resultssupporting

confidence: 82%

“…This assessment is primarily made on the basis of measured outdoor PM 10 concentration, although humans in industrialized countries spend 80-90% of their time indoors (Klepeis et al, 2001;Schweizer et al, 2007). The quality of the indoor air and environmental quality (IEQ) in terms of gas-phase constituents and particulate matter composition may differ substantially from the corresponding outdoor values (Mitchell et al, 2007;Sepp€ anen et al, 1999), and the significance of this fact has triggered many field studies (See and Balasubramanian, 2008;Gehin et al, 2008;Martuzevicius et al, 2008;Sotiriou et al, 2008;Kuo et al, 2007, Zitnik et al, 2010Bennett et al, 2012;Salma et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Exercise-induced effects on a gym atmosphere

et al. 2015

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We report results of analysis of a month-long measurement of indoor air and environment quality parameters in one gym during sporting activities such as football, basketball, volleyball, badminton, boxing, and fitness. We have determined an average single person's contribution to the increase of temperature, humidity, and dust concentration in the gym air volume of 12500 m(3) : during 90-min exercise performed at an average heart rate of 143 ± 10 bpm, a single person evaporated 0.94 kg of water into the air by sweating, contributed 0.03 K to the air temperature rise and added 1.5 μg/m(3) and 5 ng/m(3) to the indoor concentration of inhalable particles (PM10 ) and Ca concentration, respectively. As the breathing at the observed exercise intensity was about three times faster with respect to the resting condition and as the exercise-induced PM10 concentration was about two times larger than outdoors, a sportsman in the gym would receive about a sixfold higher dose of PM10 inside than he/she would have received at rest outside.

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Section: Resultssupporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Exercise-induced effects on a gym atmosphere

et al. 2015

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“…Although numerous measurements in the outside air have been conducted, only few data on indoor air pollution are available. Until recently, the health effects of indoor air pollution have received relatively little attention and much less is know in indoor working environments [9,10]. In recent years, people have started to recognize the importance of indoor air environment.…”

Section: Introductionmentioning

confidence: 99%

Single-Particle Analysis in An Indoor Working Environment in Valencia, Spain

Lull

Llinares²,

Moreno³

et al. 2012

JASMI

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Actually is recognized the importance of indoor air environment and associated health risks. In order to evaluate indoor air quality and to characterize the particles in terms of size, composition and shape were done measurements of the suspended particulate matter in a mechanical workshop of the Polytechnic University of Valencia (Spain). These measurements were performed using scanning electron microscope (SEM) with energy dispersive X-ray microanalysis (EDX) and image digital analysis. To differentiation of individual particles in the fine- ultrafine fraction, in some case, was used the atomic force microscopy (AFM). Multivariate statistics, such as hierarchical cluster analysis and factor analysis were appliqued and allowed to establish groups of elements and in this way to facilitate the identification of the natural and anthropogenic sources. It is confirmed that indoor air is influenced by outdoor surroundings and the anthropogenic sources due to the daily activity

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“…A fine fraction of aerosols, containing particles of aerodynamic diameter smaller than 2.5 µm, is the most harmful because it can easily enter the human respiratory system. Many studies have been conducted to monitor the air quality in different indoor working environments, like chemical laboratories, dental clinics and metal workshops [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

“…The ambient air in a mechanical workshop often has a high concentration of fine particles with potentially harmful composition [1,4,5], causing multiple health problems [6][7][8][9][10]. The most important source of fine aerosols in metal workshops is welding fume, a mixture of various gases and solid particles of elements such as iron and manganese.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Aerosols in Indoor Working Environment by X-Ray Fluorescence Technique (Xrf)

Čargonja¹,

Žauhar²,

Orlić³

2017

RadJ

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Abstract. In this study, fine particulate matter (PM2.5) was collected inside the metal workshop located in the suburb of the City of Rijeka, Croatia. The high intensity of welding and plasma cutting is characteristic for this metal workshop and, therefore, high levels of very fine metal aerosols were expected. The fine aerosol sampling on thin Teflon filters and subsequent XRF elemental analysis were performed. The sampling in the workshop was conducted in two sampling periods in May and November 2016. In total, 64 samples were collected, out of which 28 were 12-hours samples and 36 were hourly samples. Additionally, Trotec Optical Particle Counter PC220 was used to measure concentrations for 6 different optical sizes (0.3 µm, 0.5 µm, 1 µm, 2.5 µm, 5 µm and 10 µm) to obtain the particle size distribution. The sample analysis was carried out with X-Ray Fluorescence technique at the Laboratory for Elemental Microanalysis at the Department of Physics, University of Rijeka. Heavy metals such as Ti, Cr, Mn, Fe, Ni, Cu, Zn and Pb were detected. The results were compared to the average daily concentrations measured in the city centre. Concentrations of all measured metals in indoor air in our study were significantly higher than in the samples collected outdoors. The highest indoor/outdoor ratio was obtained for Fe and Mn. Weekly and daily variations of heavy metal concentrations were also analysed. As expected, the results showed that weekly and diurnal variations of metal concentrations follow the work intensity in the workshop. The particle size distribution shows that sub-micron particles are present in much higher concentrations than coarse particles. This indicates the harmfulness of welding fumes.

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Time-resolved measurements of aerosol elemental concentrations in indoor working environments

Cited by 13 publications

References 31 publications

Exercise-induced effects on a gym atmosphere

Exercise-induced effects on a gym atmosphere

Single-Particle Analysis in An Indoor Working Environment in Valencia, Spain

Analysis of Aerosols in Indoor Working Environment by X-Ray Fluorescence Technique (Xrf)

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