Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/17915
Title: Characteristics and health impacts of VOCs and carbonyls associated with residential cooking activities in Hong Kong
Authors: Huang, Y
Ho, SSH
Ho, KF
Lee, SC 
Yu, JZ
Louie, PKK
Keywords: Carbonyl compounds
Cooking emissions
Risk assessment
Volatile organic compounds
Issue Date: 2011
Publisher: Elsevier
Source: Journal of hazardous materials, 2011, v. 186, no. 1, p. 344-351 How to cite?
Journal: Journal of hazardous materials 
Abstract: Cooking emission samples collected in two residential kitchens were compared where towngas (denoted as dwelling A) and liquefied petroleum gas (LPG) (denoted as dwelling B) were used as cooking fuels. A total of 50 different volatile organic compounds (VOCs) were quantified during the 90. min cooking periods. None of any carcinogenic compounds like formaldehyde, acetaldehyde or benzene are detected in the raw fuels, confirming that those are almost entirely derived due to cooking activity alone. Alkenes accounted for approximately 53% of the total measured VOCs collected at dwelling A, while alkanes contributed approximately 95% of the VOCs at dwelling B during the cooking periods. The concentration of aromatic hydrocarbons such as benzene and toluene also increased during the cooking periods. The total amount of carbonyls emitted from the cooking processes at dwelling A (2708μg) is three times higher than that at dwelling B (793μg). Acetaldehyde was the most abundant carbonyl at the dwelling A but its emission was insignificant at the dwelling B. Carcinogenic risks on chronic exposure to formaldehyde, acetaldehyde, and benzene for housewives and domestic helpers were evaluated. Formaldehyde accounts for 68% and close to 100% of lifetime cancer risks at dwelling A and B, respectively.
URI: http://hdl.handle.net/10397/17915
ISSN: 0304-3894
EISSN: 1873-3336
DOI: 10.1016/j.jhazmat.2010.11.003
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