Joint Key Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
Volatile organic compounds (VOCs) and carbonyl compounds were measured both indoors and outdoors in 50 residences of Beijing in heating (December, 2011) and non-heating seasons (April/May, 2012). SUMMA canisters for VOCs and diffusive samplers for carbonyl compounds were deployed for 24 h at each site, and 94 compounds were quantified. Formaldehyde, acetone and acetaldehyde were the most abundant carbonyl compounds both indoors and outdoors with indoor median concentrations being 32.1, 21.7 and 15.3 μg·m−3, respectively. Ethane (17.6 μg·m−3), toluene (14.4 μg·m−3), propane (11.2 μg·m−3), ethene (8.40 μg·m−3), n-butane (6.87 μg·m−3), and benzene (5.95 μg·m−3) showed the high median concentrations in indoor air. Dichloromethane, p-dichlorobenzene (p-DCB) and toluene exhibited extremely high levels in some residences, which were related with a number of indoor emission sources. Moreover, isoprene, p-dichlorobenzene and carbonyls showed median indoor/outdoor (I/O) ratios larger than 3, indicating their indoor sources were prevailing. Chlorinated compounds like CFCs were mainly from outdoor sources for their I/O ratios being less than 1. In addition, indoor concentrations between two sampling seasons varied with different compounds. Carbonyl compounds and some chlorinated compounds had higher concentrations in the non-heating season, while alkanes, alkenes, aromatic compounds showed an increase in the heating season. Indoor concentration of VOCs and carbonyls were influenced by locations, interior decorations and indoor activities, however the specific sources for indoor VOCs and carbonyls could not be easily identified. The findings obtained in this study would significantly enhance our understandings on the prevalent and abundant species of VOCs as well as their concentrations and sources in Beijing residences.
IARC. Overall Evaluation of Carcinogenicity to Humans, Formaldehyde [50–00–0] Monographs Series, Vol 88. International Agency for Research on Cancer, Lyon, France, 2004
2
WHO. Indoor air quality guidelines, selected pollutants. World Health Organization Regional Office for Europe, 2010
3
Wolkoff P, Nielsen G D. Non-cancer effects of formaldehyde and relevance for setting an indoor air guideline. Environment International, 2010, 36(7): 788–799
https://doi.org/10.1016/j.envint.2010.05.012
pmid: 20557934
Dawson H E, McAlary T. A compilation of statistics for VOCs from post-1990 indoor air concentration studies in north American residences unaffected by subsurface vapor intrusion. Ground Water Monitoring and Remediation, 2009, 29(1): 60–69
https://doi.org/10.1111/j.1745-6592.2008.01215.x
7
Wallace L A. Personal exposures, indoor and outdoor air concentrations, and exhaled breath concentrations of selected volatile organic-compounds measured for 600 residences of New-Jersey, North-Dakota, North-Carolina and California. Toxicological and Environmental Chemistry, 1986, 12(3–4): 215–236
https://doi.org/10.1080/02772248609357160
8
Weisel C P, Zhang J, Turpin B J, Morandi M T, Colome S, Stock T H, Spektor D M, Korn L, Winer A, Alimokhtari S, Kwon J, Mohan K, Harrington R, Giovannetti R, Cui W, Afshar M, Maberti S, Shendell D. The relationships of indoor, outdoor and personal air (RIOPA) study: study design, methods and initial results. Journal of Exposure Analysis and Environmental Epidemiology, 2005, 15(2): 123–137
https://doi.org/10.1038/sj.jea.7500379
pmid: 15213705
9
Zhu J, Newhook R, Marro L, Chan C C. Selected volatile organic compounds in residential air in the city of Ottawa, Canada. Environmental Science & Technology, 2005, 39(11): 3964–3971
https://doi.org/10.1021/es050173u
pmid: 15984771
10
Jia C, Batterman S, Godwin C. VOCs in industrial, urban and suburban neighborhoods, Part 1: Indoor and outdoor concentrations, variation, and risk drivers. Atmospheric Environment, 2008, 42(9): 2083–2100
https://doi.org/10.1016/j.atmosenv.2007.11.055
11
Ohura T, Amagai T, Senga Y, Fusaya M. Organic air pollutants inside and outside residences in Shimizu, Japan: levels, sources and risks. Science of the Total Environment, 2006, 366(2–3): 485–499
https://doi.org/10.1016/j.scitotenv.2005.10.005
pmid: 16298419
12
Baya M P, Bakeas E B, Siskos P A. Volatile organic compounds in the air of 25 Greek homes. Indoor and Built Environment, 2004, 13(1): 53–61
https://doi.org/10.1177/1420326X04036007
13
Tang X, Bai Y, Duong A, Smith M T, Li L, Zhang L. Formaldehyde in China: production, consumption, exposure levels, and health effects. Environment International, 2009, 35(8): 1210–1224
https://doi.org/10.1016/j.envint.2009.06.002
pmid: 19589601
14
Ohura T, Amagai T, Shen X Y, Li S A, Zhang P, Zhu L Z. Comparative study on indoor air quality in Japan and China: Characteristics of residential indoor and outdoor VOCs. Atmospheric Environment, 2009, 43(40): 6352–6359
https://doi.org/10.1016/j.atmosenv.2009.09.022
15
Wang B, Lee S C, Ho K F. Characteristics of carbonyls: Concentrations and source strengths for indoor and outdoor residential microenvironments in China. Atmospheric Environment, 2007, 41(13): 2851–2861
https://doi.org/10.1016/j.atmosenv.2006.11.039
16
Gleit A. Estimation for small normal data sets with detection limits. Environmental Science & Technology, 1985, 19(12): 1201–1206
https://doi.org/10.1021/es00142a011
pmid: 22280138
17
Salthammer T, Mentese S, Marutzky R. Formaldehyde in the indoor environment. Chemical Reviews, 2010, 110(4): 2536–2572
https://doi.org/10.1021/cr800399g
pmid: 20067232
18
Marchand C, Buillot B, Le Calve S, Mirabel P. Aldehyde measurements in indoor environments in Strasbourg (France). Atmospheric Environment, 2006, 40(7): 1336–1345
https://doi.org/10.1016/j.atmosenv.2005.10.027
19
Watson J G, Chow J C, Fujita E M. Review of volatile organic compound source apportionment by chemical mass balance. Atmospheric Environment, 2001, 35(9): 1567–1584
https://doi.org/10.1016/S1352-2310(00)00461-1
20
ATSDR. Toxicological profile for methylene chloride (update). Draft for Public Comment. Public Health Service, US Department of Health and Human Services, Atlanta, GA, 1998
21
ATSDR. Toxicological profile for dichlorobenzene, agency for toxic substances and disease registry. US Department of Health & Human Services, Atlanta, GA, 2006
22
Polzin G M, Kosa-Maines R E, Ashley D L, Watson C H. Analysis of volatile organic compounds in mainstream cigarette smoke. Environmental Science & Technology, 2007, 41(4): 1297–1302
https://doi.org/10.1021/es060609l
pmid: 17593733
23
Guo H, Lee S C, Li W M, Cao J J. Source characterization of BTEX in indoor microenvironments in Hong Kong. Atmospheric Environment, 2003, 37(1): 73–82
https://doi.org/10.1016/S1352-2310(02)00724-0
24
Ilgen E, Karfich N, Levsen K, Angerer J, Schneider P, Heinrich J, Wichmann H E, Dunemann L, Begerow J. Aromatic hydrocarbons in the atmospheric environment: Part I. Indoor versus outdoor sources, the influence of traffic. Atmospheric Environment, 2001, 35(7): 1235–1252
https://doi.org/10.1016/S1352-2310(00)00388-5
25
Buczynska A J, Krata A, Stranger M, Godoi A F L, Kontozova-Deutsch V, Bencs L, Naveau I, Roekens E, Van Grieken R. Atmospheric BTEX-concentrations in an area with intensive street traffic. Atmospheric Environment, 2009, 43(2): 311–318
https://doi.org/10.1016/j.atmosenv.2008.09.071
26
Sax S N, Bennett D H, Chillrud S N, Kinney P L, Spengler J D. Differences in source emission rates of volatile organic compounds in inner-city residences of New York City and Los Angeles. Journal of Exposure Analysis and Environmental Epidemiology, 2004, 14(Suppl 1): S95–S109
https://doi.org/10.1038/sj.jea.7500364
pmid: 15118751
27
Weng M, Zhu L, Yang K, Chen S. Levels, sources, and health risks of carbonyls in residential indoor air in Hangzhou, China. Environmental Monitoring and Assessment, 2010, 163(1–4): 573–581
https://doi.org/10.1007/s10661-009-0859-z
pmid: 19353293
28
Huang H, Wang B, Lee S C, Zeng B Q. Indoor/outdoor carbonyl compounds in Guangzhou residences. Journal of Analytical Science, 2008, 24(1): 42–46
29
Liu Q, Liu Y, Zhang M. Personal exposure and source characteristics of carbonyl compounds and BTEXs within homes in Beijing, China. Building and Environment, 2013, 61: 210–216
https://doi.org/10.1016/j.buildenv.2012.12.014
30
Kim Y M, Harrad S, Harrison R M. Concentrations and sources of VOCs in urban domestic and public microenvironments. Environmental Science & Technology, 2001, 35(6): 997–1004
https://doi.org/10.1021/es000192y
pmid: 11347947
31
Guo H, Kwok N H, Cheng H R, Lee S C, Hung W T, Li Y S. Formaldehyde and volatile organic compounds in Hong Kong homes: concentrations and impact factors. Indoor Air, 2009, 19(3): 206–217
https://doi.org/10.1111/j.1600-0668.2008.00580.x
pmid: 19220507
32
Zhou J, You Y, Bai Z, Hu Y, Zhang J, Zhang N. Health risk assessment of personal inhalation exposure to volatile organic compounds in Tianjin, China. Science of the Total Environment, 2011, 409(3): 452–459
https://doi.org/10.1016/j.scitotenv.2010.10.022
pmid: 21078521
33
Edwards R D, Jurvelin J, Koistinen K, Saarela K, Jantunen M. VOC source identification from personal and residential indoor, outdoor and workplace microenvironment samples in EXPOLIS-Helsinki, Finland. Atmospheric Environment, 2001, 35(28): 4829–4841
https://doi.org/10.1016/S1352-2310(01)00271-0
34
Jia C R, Batterman S, Godwin C. VOCs in industrial, urban and suburban neighborhoods, Part 1: Indoor and outdoor concentrations, variation, and risk drivers. Atmospheric Environment, 2008, 42(9): 2083–2100
https://doi.org/10.1016/j.atmosenv.2007.11.055
Wiglusz R, Sitko E, Nikel G, Jarnuszkiewicz I, Igielska B. The effect of temperature on the emission of formaldehyde and volatile organic compounds (VOCs) from laminate flooring-case study. Building and Environment, 2002, 37(1): 41–44
https://doi.org/10.1016/S0360-1323(00)00091-3
37
Parthasarathy S, Maddalena R L, Russell M L, Apte M G. Effect of temperature and humidity on formaldehyde emissions in temporary housing units. Journal of the Air & Waste Management Association, 2011, 61(6): 689–695
https://doi.org/10.3155/1047-3289.61.6.689
pmid: 21751584
38
Lary D J, Shallcross D E. Central role of carbonyl compounds in atmospheric chemistry. Journal of Geophysical Research, D, Atmospheres, 2000, 105(D15): 19771–19778
https://doi.org/10.1029/1999JD901184