A badge-type personal sampler for measurement of personal exposure to NO2 and NO in ambient air

Yanagisawa, Yukio; Nishimura, Hajime

doi:10.1016/0160-4120(82)90033-2

Cited by 126 publications

(67 citation statements)

References 10 publications

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“…The HONO measurements reported in the present study clearly establish that HONO levels tend to be higher in homes than outdoors. The precisions of the HONO and NO 2 passive samplers were comparable to previously reported values (17,18). During the entire 12-month sampling period, the relative precision of the passive O 3 sampler was 12% for indoor and 4% for outdoor samplers (16).…”

Section: Discussionsupporting

confidence: 75%

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Nitrous acid, nitrogen dioxide, and ozone concentrations in residential environments.

Lee

Xue

Geyh

et al. 2002

Environ Health Perspect

117

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Nitrous acid (HONO) may be generated by heterogeneous reactions of nitrogen dioxide and direct emission from combustion sources. Interactions among nitrogen oxides and ozone are important for outdoor photochemical reactions. However, little is known of indoor HONO levels or the relationship between residential HONO, NO(2), and O(3) concentrations in occupied houses. Six-day integrated indoor and outdoor concentrations of the three pollutants were simultaneously measured in two communities in Southern California using passive samplers. The average indoor HONO concentration was 4.6 ppb, compared to 0.9 ppb for outdoor HONO. Average indoor and outdoor NO(2)concentrations were 28 and 20.1 ppb, respectively. Indoor O(3) concentrations were low (average 14.9 ppb) in comparison to the outdoor levels (average 56.5 ppb). Housing characteristics, including community and presence of a gas range, were significantly associated with indoor NO(2) and HONO concentrations. Indoor HONO levels were closely correlated with indoor NO(2) levels and were about 17% of indoor NO(2) concentrations. Indoor HONO levels were inversely correlated with indoor O(3) levels. The measurements demonstrated the occurrence of substantial residential indoor HONO concentrations and associations among the three indoor air pollutants.

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Section: Discussionsupporting

confidence: 75%

“…NO 2 concentrations were measured with a filter badge that absorbed NO 2 on a cellulose fiber filter coated with a triethanolamine solution (18). Samples were analyzed spectrophotometrically.…”

Section: Methodsmentioning

confidence: 99%

Nitrous acid, nitrogen dioxide, and ozone concentrations in residential environments.

Lee

Xue

Geyh

et al. 2002

Environ Health Perspect

117

View full text Add to dashboard Cite

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“…The analyses were conducted according to standard operating procedures at the Desert Research Institute laboratories (DRI; Reno, NV, USA) including their quality control and assurance (Chow and Watson, 1998;Watson et al, 1999). Finally, NO 2 samples were collected using Yanagisawa passive filter badges, which absorb NO 2 on a triethanolamine solution on a cellulose fiber filter (Yanagisawa and Nishimura, 1982).…”

Section: Methodsmentioning

confidence: 99%

Predictors of concentrations of nitrogen dioxide, fine particulate matter, and particle constituents inside of lower socioeconomic status urban homes

Baxter

Clougherty

Laden

et al. 2006

J Expo Sci Environ Epidemiol

103

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Air pollution exposure patterns may contribute to known spatial patterning of asthma morbidity within urban areas. While studies have evaluated the relationship between traffic and outdoor concentrations, few have considered indoor exposure patterns within low socioeconomic status (SES) urban communities. In this study, part of a prospective birth cohort study assessing asthma etiology in urban Boston, we collected indoor and outdoor 3-4 day samples of nitrogen dioxide (NO 2 ) and fine particulate matter (PM 2.5 ) in 43 residences across multiple seasons from 2003 to 2005. Homes were chosen to represent low SES households, including both cohort and non-cohort residences in similar neighborhoods, and consisted almost entirely of multiunit residences. Reflectance analysis and X-ray fluorescence spectroscopy were performed on the particle filters to determine elemental carbon (EC) and trace element concentrations, respectively. Additionally, information on home characteristics (e.g. type, age, stove fuel) and occupant behaviors (e.g. smoking, cooking, cleaning) were collected via a standardized questionnaire. The contributions of outdoor and indoor sources to indoor concentrations were quantified with regression analyses using mass balance principles. For NO 2 and most particle constituents (except outdoor-dominated constituents like sulfur and vanadium), the addition of selected indoor source terms improved the model's predictive power. Cooking time, gas stove usage, occupant density, and humidifiers were identified as important contributors to indoor levels of various pollutants. A comparison between cohort and non-cohort participants provided another means to determine the influence of occupant activity patterns on indoor-outdoor ratios. Although the groups had similar housing characteristics and were located in similar neighborhoods, cohort members had significantly higher indoor concentrations of PM 2.5 and NO 2 , associated with indoor activities. We conclude that the effect of indoor sources may be more pronounced in high-density multiunit dwellings, and that future epidemiological studies in these populations should explicitly consider these sources in assigning exposures.

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“…NO 2 concentrations were measured with a filter badge that absorbed NO 2 on a cellulose fiber filter coated with triethanolamine solution (Yanagisawa and Nishimura, 1982). The sampler was analyzed spectrophotometrically.…”

Section: Methodsmentioning

confidence: 99%

Interpersonal and daily variability of personal exposures to nitrogen dioxide and sulfur dioxide

Lee

Bartell

Paek

2004

J Expo Sci Environ Epidemiol

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Chronic exposure is often assessed using a single measurement per individual or group. However, daily levels of personal exposure can vary greatly. Chronic exposure classification by a single measurement could be significantly affected by the interpersonal and daily variations of exposures. The purpose of this study is to determine the effect of using a single personal exposure measurement on estimating long-term exposure. This study used measurements of consecutive 14 daily personal exposures to nitrogen dioxide (NO 2 ) and sulfur dioxide (SO 2 ) of 50 individuals in Yeochun, Korea. The daily personal exposures were measured by passive samplers. Personal exposure to NO 2 was associated with gas cooking, and personal exposure to SO 2 was associated with ambient air pollution. Mixed effects models indicated that daily variability was greater than interpersonal variability for both the pollutants. Effectiveness of using single-day personal measurements for long-term population mean exposure was supported by relatively consistent daily population averages, but multiple-day measurements might be warranted for characterizing individual exposures or high-end population exposures such as the 95th percentile. Although classification of high and low exposure groups by 1-day exposure and by 14-day exposure produced similar group totals, 20% of individual NO 2 exposures and 31% of individual SO 2 exposures were misclassified using 1-day exposures. Average values of 1-day exposure and 14-day exposure were significantly different, but the difference decreased by an increase in the number of measurements for the short-term exposure. The findings were similar for both NO 2 and SO 2 , although the two air pollutants have different sources and behaviors.

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A badge-type personal sampler for measurement of personal exposure to NO2 and NO in ambient air

Cited by 126 publications

References 10 publications

Nitrous acid, nitrogen dioxide, and ozone concentrations in residential environments.

Nitrous acid, nitrogen dioxide, and ozone concentrations in residential environments.

Predictors of concentrations of nitrogen dioxide, fine particulate matter, and particle constituents inside of lower socioeconomic status urban homes

Interpersonal and daily variability of personal exposures to nitrogen dioxide and sulfur dioxide

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