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J Occup Environ Med. 2013 Apr;55(4):430-45. doi: 10.1097/JOM.0b013e31827cbabe.

Characterization of inhalable, thoracic, and respirable fractions and ultrafine particle exposure during grinding, brazing, and welding activities in a mechanical engineering factory.

Author information

1
Institute of Occupational Medicine, Università Cattolica del Sacro Cuore, Largo Francesco Vito 1, 00168 Rome, Italy. iavicoli.ivo@rm.unicatt.it

Abstract

OBJECTIVE:

To investigate the emission sources of fine and ultrafine particles (UFPs) during brazing, welding, and grinding in a mechanical engineering factory and to characterize UFP exposure by measuring size distributions, number, and surface area concentrations.

METHODS:

Samplings lasted 4 hours and were conducted during 5 days using the Grimm 1.109 portable aerosol spectrometer, the Grimm portable NanoCheck™ 1.320, the electrical low pressure impactor, and the nanoparticle aerosol monitor AeroTrak™ 9000.

RESULTS:

Higher concentrations of fine particles were observed in welding and grinding activities. The highest values of UFP number and alveolar surface area concentrations were detected in the welding booth.

CONCLUSIONS:

Potential emission sources of fine particles and UFPs can be identified by the multifaceted approach outlined in this study. This sampling strategy provides important data on key UFP metrics.

PMID:
23348430
DOI:
10.1097/JOM.0b013e31827cbabe
[Indexed for MEDLINE]

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