TITLE

A miniaturized active sampler for the assessment of personal exposure to nitrogen dioxide

AUTHOR(S)
Staimer, Norbert; Delfino, Ralph; Bufalino, Charles; Fine, Philip; Sioutas, Constantinos; Kleinman, Michael
PUB. DATE
November 2005
SOURCE
Analytical & Bioanalytical Chemistry;Nov2005, Vol. 383 Issue 6, p955
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A personalized, miniaturized air sampling system was evaluated to estimate the daily exposure of pediatric asthmatics to nitrogen dioxide (NO2). The lightweight device (170 g) uses a sampling pump connected to a solid sorbent tube containing triethanolamine (TEA)-impregnated molecular sieve. The pump is powered by a 9 V battery and samples air over a 24 h period at a collection rate of 0.100 L/min. After exposure, the solid sorbent is removed from the tubes for spectrophotometric analysis (Griess Assay). The lower detection limit of the overall method for NO2 is 11 �g/m3. The linearity, precision and accuracy of the sampler was evaluated. Different NO2 concentrations generated in the laboratory (range: 50 to 340 �g/m3) were simultaneously measured by the TEA tube samplers and colocated continuous chemiluminescent NOx analyzers (reference method). The coefficient of determination for the laboratory test derived from ordinary linear regression (OLR) was r 2=0.99 ( y OLR=0.94 x-4.58) and the precision 3.6%. Further, ambient NO2 concentrations in the field (range: 10�120 �g/m3) were verified with continuous chemiluminescent monitors next to the active samplers. Reweighted least squares analysis (RLS) based on the least median squares procedure (LMS) resulted in a correlation of r 2=0.68 for a field comparison in Riverside, CA ( y RLS=1.01 x-0.94) and r 2=0.92 in Los Angeles, CA ( y RLS=1.31 x-7.12). The precision of the TEA tube devices was 7.4% (at 20�60 �g/m3 NO2) under outdoor conditions. Data show that the performance of this small active sampling system was satisfactory for measuring environmental concentrations of NO2 under laboratory and field conditions. It is useful for personal monitoring of NO2 in environmental epidemiology studies where daily measurements are desired.
ACCESSION #
18813194

 

Related Articles

  • Roadside Concentration of Gaseous and Particulate Matter Pollutants and Risk Assessment in Dar-Es-Salaam, Tanzania. Jackson, Msafiri M. // Environmental Monitoring & Assessment;Apr2005, Vol. 104 Issue 1-3, p385 

    This study used manual air sampling method to assess the contribution of road traffic to air pollution level in Dar-es-Salaam City, Tanzania. Samples were collected from 11 different sites. Parameters measured were: sulphur dioxide using pararosaniline method, nitrogen dioxide using saltzman...

  • Anksiyete, duygudurum ve psikotik belirtilerin lisans eÄŸitimi sürecindeki gidiÅŸi. KOÇ, Mustafa; ÇOLAK, T. Seda; DÜİÜNCELİ, Betül // Anatolian Journal of Psychiatry / Anadolu Psikiyatri Dergisi;2013, Vol. 14 Issue 3, p260 

    Objective: The basic aim of the study is to determine the outcome of anxiety (somatization, obsessive-compulsive, anxiety, and phobic anxiety), mood (interpersonal sensitivity, depression, and hostility) and psychotic symptoms (paranoid ideation and psychoticism) during undergraduate education....

  • Validation and field application of tailor-made nitrogen dioxide passive samplers. Bootdee, S.; Chalemrom, P.; Chantara, S. // International Journal of Environmental Science & Technology (IJE;Jul2012, Vol. 9 Issue 3, p515 

    This study describes the validation and field application of new tailor-made passive samplers for nitrogen dioxide measurements. These samplers consist of polypropylene diffusion tubes containing glass fiber filters impregnated with 20 % triethanolamine. The tube was constructed from locally...

  • Relationship Between Atmospheric Quality and Concentration of Nitrite in Condensed Water of Dehumidifier. Wang, X. J.; Zhan, Y. G.; Hu, G. P.; Cui, X. F. // Bulletin of Environmental Contamination & Toxicology;Apr2006, Vol. 76 Issue 4, p728 

    No abstract available.

  • Monitoring Nitrogen Dioxide and its Effects on Asthmatic Patients: Two Different Strategies Compared. Panella, Massimiliano; Tommasini, Vania; Binotti, Marco; Palin, Lucio; Bona, Gianni // Environmental Monitoring & Assessment;Aug2000, Vol. 63 Issue 3, p447 

    Objectives: To develop a `methodology assessment' to evaluate the strengths and the weaknesses of two different epidemiological approaches and to identify the best suited monitoring strategy to measure the effects of `normal levels' of nitrogen dioxide exposure on the health of an urban...

  • Personal exposures of children to nitrogen dioxide relative to concentrations in outdoor air. Linaker, Catherine H.; Chauhan, Anoop J.; Inskip, Hazel M.; Holgate, Stephen T. // Occupational & Environmental Medicine;Jul2000, Vol. 57 Issue 7, p472 

    Investigates the relationship between the fluctuations in personal exposure to nitrogen dioxide NO[sub 2] in school children and changes in outdoor NO[sub 2] concentrations. Identification of the main source of nitrogen dioxide; Accounts on the standards adopted by the government for NO[sub 2]...

  • Dose-Response of Asthmatic Volunteers Exposed to Nitrogen Dioxide during Intermittent Exercise. Linn, William S.; Shamoo, Deborah A.; Avol, Edward L.; Whynot, Jill D.; Anderson, Karen R.; Venet, Theodore G.; Hackney, Jack D. // Archives of Environmental Health;Sep/Oct86, Vol. 41 Issue 5 

    Examines the response of asthmatic volunteers exposed to nitrogen dioxide (NO[sub 2]) during intermittent exercise. Measurement of airway resistance and maximal forced expiratory performance; Induction of bronchoconstriction regardless of NO[sub 2] level.

  • Carbonaceous Particulate Matter Air Pollution and Human Exposure from Indoor Biomass Burning Practices. Zhong, Junjun; Ding, Junnan; Su, Yuhong; Shen, Guofeng; Yang, Yifeng; Wang, Chen; Simonich, Staci L. Massey; Cao, Hongying; Zhu, Ying; Tao, Shu // Environmental Engineering Science;Nov2012, Vol. 29 Issue 11, p1038 

    Using both stationary air samplers and personal air samplers, concentrations of total suspended particulates, particulate matter with a diameter less than 2.5 μm, elemental carbon, and organic carbon were measured in the kitchen, bedroom, and outdoors of a rural, nonsmoking household in...

  • Assessing persistent organic pollutants (POPs) in the Sicily Island atmosphere, Mediterranean, using PUF disk passive air samplers. Pozo, Karla; Palmeri, Margherita; Palmeri, Valeria; Estellano, Victor; Mulder, Marie; Efstathiou, Christos; Sará, Gian; Romeo, Teresa; Lammel, Gerhard; Focardi, Silvano // Environmental Science & Pollution Research;Oct2016, Vol. 23 Issue 20, p20796 

    In this study, PUF disk passive air samplers were deployed at eight sites, during two sampling periods, on the Island of Sicily in the Mediterranean basin. Samples were screened for a number of persistent organic pollutants (POPs) including polychlorinated biphenyls (PCBs) ( n = 28 congeners),...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics