A study of the growth and decay of cigarette smoke NOx in ambient air under controlled conditions

Journal Article · Thu Jan 01 00:00:00 EST 1987 · Environment International; (USA)

DOI:https://doi.org/10.1016/0160-4120(87)90003-1· OSTI ID:5231613

Rickert, W S; Robinson, J C ^[1]; Collishaw, N E ^[2]

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1. Labstat Inc., Kitchener, Ontario (Canada)
2. Environmental Health Centre, Health and Welfare Canada, Ottawa, Ontario (Canada)

The amount of NO{sub 2} and NO produced by the machine smoking of cigarettes was determined for 15 commercial Canadian brands. Average yield of NO was 1.44 {mu}moles or about 13% of the average reported for American cigarettes. Levels of NO{sub 2} were all less than 12% of NO and were probably due to the oxidation of NO. In order to assess the contribution of tobacco smoke to levels of NO in ambient air, 5 brands of cigarettes were smoked in a 27 cubic meter controlled environment room. Ventilation conditions were either 2.5 or 5.0 air changes per hour (ACH) and each experiment was replicated 3 times for a total of 30 experiments. Ventilation rates of 0.3 and 1.5 ACH were also selected in a second series of experiments in which only one brand of cigarette was smoked. Least squares estimates for the effective ventilation rates were obtained in the usual manner after linearizing the decay portion of the NO time curve. In each of the experiments, the regression explained at least 95% of the variation in the levels of NO with time. Loss of NO due to factors other than ventilation appeared to be constant within experimental error and averaged 2.22 ACH. Equilibrium values for NO were grossly underestimated when results from currently accepted procedures for smoke analysis were used in modeling the growth and decay of NO. Goodness-of-fit was improved when equilibrium values were estimated based on observed levels in ambient air.

• OSTI ID: 5231613
• Journal Information: Environment International; (USA), Vol. 13:6; ISSN 0160-4120
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
INDOOR AIR POLLUTION
NITROGEN OXIDES
AIR POLLUTION MONITORING
TOBACCO SMOKES
CHEMICAL COMPOSITION
EXPERIMENTAL DATA
AEROSOLS
AIR POLLUTION
CHALCOGENIDES
COLLOIDS
DATA
DISPERSIONS
INFORMATION
NITROGEN COMPOUNDS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
POLLUTION
RESIDUES
SMOKES
SOLS
540120* - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)