Diffusive sampling and measurement of microbial volatile organic compounds in indoor air

被引:15
作者
Araki, A.
Eitaki, Y. [2 ]
Kawai, T. [2 ]
Kanazawa, A.
Takeda, M.
Kishi, R. [1 ]
机构
[1] Hokkaido Univ, Grad Sch Med, Dept Publ Hlth Sci, Kita Ku, Sapporo, Hokkaido 0608638, Japan
[2] Japan Ind Safety & Hlth Assoc, Osaka Occupat Hlth Serv Ctr, Osaka, Japan
关键词
Microbial volatile organic compounds; Diffusive sampling; Sampling rate; Water-bubbling method; Field study; BUILDING-RELATED SYMPTOMS; FLOOR DUST; PASSIVE SAMPLER; COMPOUNDS MVOCS; EMISSION RATES; MOLDS; GROWTH; METABOLITES; EXPOSURE; DAMPNESS;
D O I
10.1111/j.1600-0668.2009.00606.x
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Microbial volatile organic compounds (MVOC), chemicals emitted from various microorganisms, in indoor air have been of concern in recent years. For large field studies, diffusive samplers are widely used to measure indoor environments. Since the sampling rate of a sampler is a fundamental parameter to calculate concentration, the sampling rates of eight MVOC with diffusive samplers were determined experimentally using a newly developed water-bubbling method: air was supplied to the MVOC-solutions and the vapor collected in an exposure bag, where diffusive and active samplers were placed in parallel for comparison. Correlations between the diffusive and active samplings gave good linear regressions. The sampling rates were 30-35 ml/min and the detection limits were 0.044-0.178 mu g/m3, as determined by GC/MS analysis. Application of the sampling rates in indoor air was validated by parallel sampling of the diffusive and active sampling method. 5% Propan-2-ol/CS2 was the best solvent to desorb the compounds from absorbents. The procedure was applied to a field study in 41 dwellings. The most frequently detected compounds were hexan-2-one and heptan-2-one, with 97.5% detection rates and geometric mean values of 0.470 and 0.302 mu g/m3, respectively. This study shows that diffusive samplers are applicable to measure indoor MVOC levels.Practical Implications At present, there are still limited reports on indoor Microbial Volatile Organic Compounds (MVOC) levels in general dwellings and occupants' health. Compared with active sampling methods, air sampling using a diffusive sampler is particularly advantageous for use in large field studies due to its smallness, light-size, easy-handling, and cost-effectiveness. In this study, sampling rates of selected MVOC of the diffusive sampler were determined using the water-bubbling method: generating gases by water-bubbling and exposing the diffusive and active samplers at the same time. The obtained sampling rates were validated, and the method was applied to the field study.
引用
收藏
页码:421 / 432
页数:12
相关论文
共 46 条
[11]  
Keller R, 2004, GEFAHRST REINHALT L, V64, P187
[12]  
Keller R, 2006, GEFAHRST REINHALT L, V66, P107
[13]  
Keller R, 2001, BIOAEROSOLS FUNGI MY, P532
[14]   Indoor molds, bacteria, microbial volatile organic compounds and plasticizers in schools -: associations with asthma and respiratory symptoms in pupils [J].
Kim, J. L. ;
Elfman, L. ;
Mi, Y. ;
Wieslander, G. ;
Smedje, G. ;
Norback, D. .
INDOOR AIR, 2007, 17 (02) :153-163
[15]   RELATIVE CONTRIBUTION OF OXYGENATED HYDROCARBONS TO THE TOTAL BIOGENIC VOC EMISSIONS OF SELECTED MID-EUROPEAN AGRICULTURAL AND NATURAL PLANT-SPECIES [J].
KONIG, G ;
BRUNDA, M ;
PUXBAUM, H ;
HEWITT, CN ;
DUCKHAM, SC ;
RUDOLPH, J .
ATMOSPHERIC ENVIRONMENT, 1995, 29 (08) :861-874
[16]  
Korpi A, 1998, APPL ENVIRON MICROB, V64, P2914
[17]   Microbial growth and metabolism in house dust [J].
Korpi, A ;
Pasanen, AL ;
Pasanen, P ;
Kalliokoski, P .
INTERNATIONAL BIODETERIORATION & BIODEGRADATION, 1997, 40 (01) :19-27
[18]   Sensory irritating potency of some microbial volatile organic compounds (MVOCs) and a mixture of five MVOCs [J].
Korpi, A ;
Kasanen, JP ;
Alarie, Y ;
Kosma, VM ;
Pasanen, AL .
ARCHIVES OF ENVIRONMENTAL HEALTH, 1999, 54 (05) :347-352
[19]   Advances in passive sampling in environmental studies [J].
Kot-Wasik, Agata ;
Zabiegala, Bozena ;
Urbanowicz, Magdalena ;
Dominiak, Ewa ;
Wasik, Andrzej ;
Namiesnik, Jacek .
ANALYTICA CHIMICA ACTA, 2007, 602 (02) :141-163
[20]   THE USE OF A PASSIVE SAMPLER FOR THE SIMULTANEOUS DETERMINATION OF LONG-TERM VENTILATION RATES AND VOC CONCENTRATIONS [J].
MAILAHN, W ;
SEIFERT, B ;
ULLRICH, D ;
MORISKE, HJ .
ENVIRONMENT INTERNATIONAL, 1989, 15 (1-6) :537-544