Secondary Logo

Journal Logo

Abstracts: ISEE 22nd Annual Conference, Seoul, Korea, 28 August–1 September 2010: Environmental Asbestos Problems

Environmental Exposures From Asbestos Textiles Process: Old Versus New

Hwang, Yongsik1; Kang, Dongmug1; Kim, Juyoung1; Lee, Su II1; Lim, Yunkyu2; Jeon, Byung II3

Author Information
doi: 10.1097/01.ede.0000391896.10697.c9
  • Free

S-29C9-4

Background/Aims:

To estimate past environmental exposure among residents, we need to check current exposure level around asbestos factory in Indonesia.

Methods:

The study was conducted during 26–28 August 2008 in Cibinong, Indonesia. The field survey was carried out to know current workers' exposure level, to evaluate environmental exposure level (air and soil) of outside factory. We used the US-EPA method for soil bulk sample analysis. Cross check procedure by PLM (NIOSH method 9002) was conducted. PCM analysis carried out NIOSH method 7400 and the counting procedure were blinded to count asbestos fibers. The observed asbestos was used to compare with atmospheric dispersion models (CALPUFF). For the modeling domain, the alternative meteorological fields with 3 km spatial resolution were interpolated to the CALMET with 0.1 km resolution. The vertical layers set to have 24 and 10 layers for MM5 and CALPUFF, respectively.

Results:

Mean air asbestos level according to textile production process such as mixing, carding, spinning, twisting, weaving, and winding were 8.6 f/cc, 7.3 f/cc, 7.5 f/cc, 3.9 f/cc, 3.1 f/cc, and 4.3 f/cc, respectively. Average asbestos concentrations of personal and regional air monitoring were 5.7 f/cc and 2.4 f/cc. The distribution of asbestos concentration for air monitoring in 5 m distance from windows of the factory was found in the order: south (0.154 f/cc), west (0.067 f/cc), east (0.016 f/cc), and north (0.001 f/cc). Asbestos were found in soil monitoring samples within 100 m from the factory. Distribution of 1 hour max asbestos in ambient air around the factories by CALPUFF is plotted below during study period (26 August 2008–28 August 2008). Determination coefficient (r2) between air monitoring data and CALPUFF (US EPA, Air Quality Models) simulation data in monitoring site was 0.72.

Conclusion:

The effect range of asbestos is more than 10 km.

© 2011 Lippincott Williams & Wilkins, Inc.