Field Study of Diffusion Collection Rate Coefficients of a No2 Passive Sampler in a Mediterranean Coastal Area

Delgado-Saborit, Juana María; Esteve-Cano, Vicente

doi:10.1007/s10661-005-9065-9

Cited by 15 publications

(5 citation statements)

References 14 publications

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“…Passive samplers operate on the principle of diffusion of gases from the atmosphere along a sampler of defined dimensions on to an adsorbing or absorbing (a solid base impregnated with a chemical reagent) medium. The gas molecules are transferred from the ambient air into the sampling device by molecular diffusion, which is a function of temperature and pressure (Delgado-Saborit and Cano, 2006). The mean concentration of the sampled gas is computed according to Fick's first law on the exposure period (Palmes and Lindenboom, 1979).…”

Section: Methodsmentioning

confidence: 99%

Air Quality Study in Urban Centers: Case Study of Ouagadougou, Burkina Faso

Nanaa¹,

Sanogob²,

Savadogoa³

et al. 2012

FJOTE

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In this work, a study on air quality in the city of Ouagadougou (Burkina Faso) was carried out. The concentration levels of NO2, SO2, BTEX and PM10 in the city have been quantified. The results show that NO2 concentrations (range from 22 to 27 µg m -3 on average) in the city remain below the limit set by the WHO standard, except for downtown where values often exceed this standard. The average concentrations of SO2 (range from 0.5 to 10.5 µg m -3 ) remain low in general throughout the city. The concentrations of BTEX (e.g. benzene: 27.9 µg m -3 ) are high in the city. PM10 concentrations are very high in the city in general; they exceed the limit set by the WHO standard by a factor of 3 to 4. These PM10 are mostly composed of dust from the desert and the re-suspension of dust particles related to vehicles traffic on unpaved roads. Two daily peaks for PM10 are observed at heavy traffic hours. Finally, the study showed that the values of PM10 concentrations observed are in the same order of magnitude of those generally observed in the Sahelian region (range from 119 to 227µg m -3 ).

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Section: Methodsmentioning

confidence: 99%

Air Quality Study in Urban Centers: Case Study of Ouagadougou, Burkina Faso

Nanaa¹,

Sanogob²,

Savadogoa³

et al. 2012

FJOTE

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“…The gas molecules are transferred from the ambient air into the sampling device by molecular diffusion, which is a function of temperature and pressure (Delgado-Saborit and Esteve-Cano 2006). Ordinary diffusion is defined as a transfer of matter from one region to another due to a concentration gradient.…”

Section: Methodsmentioning

confidence: 99%

Statistical approach for the characterization of NO2 concentrations in Beirut

Afif

Dutot

Jambert

et al. 2009

Air Qual Atmos Health

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Measurement of ambient NO 2 concentrations using diffusion tube samplers is widespread in many countries. Results from a program of measuring ground-level concentration of NO 2 at 20 urban sites within the city of Beirut are presented. In addition, two curbside sites were implemented at different heights. Two-week sampling period measurements were performed over 41 periods for all sites. A study of the sites' behaviors was conducted using principal component analysis and agglomerative hierarchical clustering. Firstly, results indicate that urban sites are equivalent, and one global class is identified. Any further monitoring of the nitrogen dioxide concentration can be conducted by decreasing the number of urban sites. Secondly, nitrogen dioxide concentration levels present a seasonal variation, as expected. Maximum average concentration of 178 μg m −3 was observed during

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“…It is not uncommon for the uptake rate of passive samplers to vary with experimental design and environmental conditions (Bhangar et al, 2013;Delgado-Saborit and Esteve-Cano 2006;Mason et al 2011). In this case, there is insufficient information to identify the exact cause of the difference in results between these two studies.…”

Section: Passive Sampling Ratementioning

confidence: 99%

Investigation of formaldehyde and acetaldehyde sampling rate and ozone interference for passive deployment of Waters Sep-Pak XPoSure samplers

Mullen

Russell

Lunden

et al. 2013

Atmospheric Environment

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This study investigated formaldehyde and acetaldehyde passive sampling rates and ozone interference for the DNPH-based Waters Sep-Pak XPoSure sampler. Previous studies have shown that ozone interferes with active sampling by this cartridge. Our study included one laboratory and six field experiments conducted in Northern California homes. Passive sampling rates of 1.10 ± 0.09 and 0.86 ± 0.10 mL/min determined for formaldehyde and acetaldehyde are lower than previously reported. In a controlled laboratory experiment there were small, statistically insignificant impacts of subsequent ozone exposure on formaldehyde and acetaldehyde mass passively collected on the samplers. This sampler is inexpensive, easy to deploy and to transport by mail, and has a high sampling capacity when used passively; it is suitable for a wide-range of monitoring applications. However, the passive sampling rate remains in question given the internally consistent, but different results obtained in our study and the previous study.

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Field Study of Diffusion Collection Rate Coefficients of a No2 Passive Sampler in a Mediterranean Coastal Area

Cited by 15 publications

References 14 publications

Air Quality Study in Urban Centers: Case Study of Ouagadougou, Burkina Faso

Air Quality Study in Urban Centers: Case Study of Ouagadougou, Burkina Faso

Statistical approach for the characterization of NO2 concentrations in Beirut

Investigation of formaldehyde and acetaldehyde sampling rate and ozone interference for passive deployment of Waters Sep-Pak XPoSure samplers

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