Measurement of diesel combustion-related air pollution downwind of an experimental unconventional natural gas operations site

Ezani, Eliani; Masey, Nicola; Gillespie, Jonathan; Beattie, Tara K.; Shipton, Zoe K.; Beverland, Iain J.

doi:10.1016/j.atmosenv.2018.06.032

Cited by 13 publications

(11 citation statements)

References 45 publications

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“…In this study, we conducted tests with 6 AE51, 15 Cairclip and 15 Canarin. For some of the previously published studies, the small number of tested units was a limitation, for example, Lin et al (2017) (two AE51 and only one for the mobility tests), Ezani et al (2018) (two AE51), Duvall et al (2016) (two Cairclip).…”

Section: Methodology Discussionmentioning

confidence: 99%

“…This test involved the following sensors: sensor B, sensor C and sensor F. The BC sensor A was not involved in this mobility tests because studies (Ezani et al, 2018;Lin et al, 2017) have already demonstrated its ability to perform mobile measurements. Fig.…”

Section: Mobility/reproducibility Testmentioning

confidence: 99%

“…The Ezani et al (2018) study was based on mobile measurements performed with two AE51 units. There were no reference instruments but the correlation between the two units was good: 0.92.…”

Section: Mobile Measurementsmentioning

confidence: 99%

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A methodology for the characterization of portable sensors for air quality measure with the goal of deployment in citizen science

Languille

Gros

Bonnaire

et al. 2020

Science of The Total Environment

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The field of small air quality sensors is of growing interest within the scientific community, especially because this new technology is liable to improve air pollutant monitoring as well as be used for personal exposure quantification. Amongst the myriad existing devices, the performances are highly variable; this is why the sensors must be rigorously assessed before deployment, according to the intended use. This study is included in the Polluscope project; its purpose is to quantify personal exposure to air pollutants by using portable sensors. This paper designs and applies a methodology for the evaluation of portable air quality sensors to eight devices measuring PM, BC, NO2 and O3. The dedicated testing protocol includes static ambient air measurements compared with reference instruments, controlled chamber and mobility tests, as well as reproducibility evaluation. Three sensors (AE51, Cairclip and Canarin) were retained to be used for the field campaigns. The reliability of their performances were robustly quantified by

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Section: Methodology Discussionmentioning

confidence: 99%

Section: Mobility/reproducibility Testmentioning

confidence: 99%

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A methodology for the characterization of portable sensors for air quality measure with the goal of deployment in citizen science

Languille

Gros

Bonnaire

et al. 2020

Science of The Total Environment

View full text Add to dashboard Cite

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“…A 1-min time resolution was used during the measurement. Although the DustTrak and Aeroqual are not regulatory-grade monitors they are widely used in prior air quality research studies [13,[15][16][17][18][19][20][21][22][23][24]. Measurements done for this paper were performed during the warranty period of the instruments.…”

Section: Measurementmentioning

confidence: 99%

Ozone, Nitrogen Dioxide, and PM2.5 Measurement at Three Urban Parks in Manila, Philippines using Portable Sensors

Galvez¹,

Tipan²,

Valera³

et al. 2020

Adv. sci. technol. eng. syst. j.

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“…Non-methane hydrocarbons (NMHCs) and nitrogen oxides (NO x ) are of the most interest as some NMHCs can be toxic (such as benzene) (Edwards et al, 2014); therefore, several studies focus on increases in methane, NMHC, and ozone in oil-and gas-producing regions (Pacsi et al, 2015;Roest and Schade, 2017). Another study explored the impor-tance of the deployment autonomy of portable measurement systems by measuring exposure upwind, within and downwind of operation of hydraulic fracturing equipment to protect workers (Ezani et al, 2018). There are also more comprehensive studies for data collection.…”

Section: Introductionmentioning

confidence: 99%

Identifying and quantifying source contributions of air quality contaminants during unconventional shale gas extraction

2021

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Abstract. The United States has experienced a sharp increase in unconventional natural gas (UNG) development due to the technological development of hydraulic fracturing. The objective of this study is to investigate the emissions at an active Marcellus Shale well pad at the Marcellus Shale Energy and Environment Laboratory (MSEEL) in Morgantown, West Virginia, USA. Using an ambient air monitoring laboratory, continuous sampling started in September 2015 during horizontal drilling and ended in February 2016 when wells were in production. High-resolution data were collected for the following air quality contaminants: volatile organic compounds (VOCs), ozone (O3), methane (CH4), nitrogen oxides (NO and NO2), and carbon dioxide (CO2), as well as typical meteorological parameters (wind speed and direction, temperature, relative humidity, and barometric pressure). Positive matrix factorization (PMF), a multivariate factor analysis tool, was used to identify possible sources of these pollutants (factor profiles) and determine the contribution of those sources to the air quality at the site. The results of the PMF analysis for well pad development phases indicate that there are three potential factor profiles impacting air quality at the site: natural gas, regional transport/photochemistry, and engine emissions. There is a significant contribution of pollutants during the horizontal drilling stage to the natural gas factor. The model outcomes show that there is an increasing contribution to the engine emission factor over different well pad drilling periods through production phases. Moreover, model results suggest that the regional transport/photochemistry factor is more pronounced during horizontal drilling and drillout due to limited emissions at the site.

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Measurement of diesel combustion-related air pollution downwind of an experimental unconventional natural gas operations site

Cited by 13 publications

References 45 publications

A methodology for the characterization of portable sensors for air quality measure with the goal of deployment in citizen science

A methodology for the characterization of portable sensors for air quality measure with the goal of deployment in citizen science

Ozone, Nitrogen Dioxide, and PM2.5 Measurement at Three Urban Parks in Manila, Philippines using Portable Sensors

Identifying and quantifying source contributions of air quality contaminants during unconventional shale gas extraction

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