PMID- 18313211 OWN - NLM STAT- MEDLINE DCOM- 20090122 LR - 20131121 IS - 0304-3894 (Print) IS - 0304-3894 (Linking) VI - 158 IP - 1 DP - 2008 Oct 1 TI - Measurements of ultrafine particle concentrations and size distribution in an iron foundry. PG - 124-30 LID - 10.1016/j.jhazmat.2008.01.036 [doi] AB - The number and surface area concentration of ultrafine particles in an iron foundry is of interest as freshly generated ultrafine particles are produced by metal melting, pouring and molding processes. This study measured the number and surface area concentrations of ultrafine particles and their size distributions in an iron foundry using a scanning mobility particle sizer (SMPS). The 10-100 nm ultrafine particle number concentrations (NC(0.01-0.1)) and surface area concentrations (SC(0.01-0.1)) measured at the iron foundry were 2.07 x 10(4) to 2.82 x 10(5)particles cm(-3) and 67.56 to 2.13 x 10(3)microm(2)cm(-3), respectively. The concentrations changed dramatically depending on on-site manufacturing conditions. The NC(0.01-0.1) levels in the iron foundry were approximately 4.5 times higher on average compared with those in the outdoor ambient environment. These measurement results indicate that the presence of extra particles in the workplace air is within the ultrafine range. Additionally, the analytical results suggest that the number mode diameter can be used to estimate the SC(0.01-0.1) levels using the NC(0.01-0.1) levels. Moreover, the ultrafine particle number mode diameter was found to be about 46.1 nm in the iron foundry. FAU - Cheng, Yu-Hsiang AU - Cheng YH AD - Department of Safety, Health and Environmental Engineering, Mingchi University of Technology, 84 Gungjuan Road, Taishan, Taipei, Taiwan. yhcheng@mail.mit.edu.tw FAU - Chao, Yen-Chi AU - Chao YC FAU - Wu, Cheng-Han AU - Wu CH FAU - Tsai, Chuen-Jinn AU - Tsai CJ FAU - Uang, Shi-Nian AU - Uang SN FAU - Shih, Tung-Sheng AU - Shih TS LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20080120 PL - Netherlands TA - J Hazard Mater JT - Journal of hazardous materials JID - 9422688 RN - 0 (Air Pollutants, Occupational) RN - 0 (Industrial Waste) RN - 0 (Particulate Matter) RN - E1UOL152H7 (Iron) SB - IM MH - Air Pollutants, Occupational/analysis MH - Environmental Monitoring/methods MH - Industrial Waste/*analysis MH - Iron/*analysis MH - *Metallurgy MH - *Particle Size MH - Particulate Matter/analysis EDAT- 2008/03/04 09:00 MHDA- 2009/01/23 09:00 CRDT- 2008/03/04 09:00 PHST- 2007/11/28 00:00 [received] PHST- 2008/01/12 00:00 [revised] PHST- 2008/01/14 00:00 [accepted] PHST- 2008/03/04 09:00 [pubmed] PHST- 2009/01/23 09:00 [medline] PHST- 2008/03/04 09:00 [entrez] AID - S0304-3894(08)00111-8 [pii] AID - 10.1016/j.jhazmat.2008.01.036 [doi] PST - ppublish SO - J Hazard Mater. 2008 Oct 1;158(1):124-30. doi: 10.1016/j.jhazmat.2008.01.036. Epub 2008 Jan 20.