Assessment of Methane Emissions from Oil and Gas Production Pads using Mobile Measurements

Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

“…Other important emissions were from pneumatic controllers (Table S6) and leaks from onsite NG production and emissions capture/control equipment (e.g., gas production units, enclosed burner, and vapor recovery units). These results are consistent with CH 4 emission sources observed in recent studies of the NG production and gathering and processing sectors. ,,, …”

Section: Resultssupporting

confidence: 91%

“…Additionally, an inverse relationship between production-normalized CH 4 emissions and total NG production was observed ( r 2 adj = 0.77), but with large scatter within each production category (Figure B). These relationships between CH 4 emissions and production (or NG throughput) have also been reported in recent studies. , …”

Section: Resultssupporting

confidence: 82%

Methane Emissions from Conventional and Unconventional Natural Gas Production Sites in the Marcellus Shale Basin

Omara

¹

,

Sullivan

²

,

Li

³

et al. 2016

Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

“…The higher GHGRP emission factor could be due to either reporting facility wells having higher emissions than the regional average or an overestimation of reported emissions caused by GHGRP methods. Our well pad emission factor (0.87 kg h –1 ) is between the geometric means of Midcontinent region (0.54 kg h –1 ) and Barnett well pads (1.19 kg h –1 ) from two recent studies, , supporting the consistency of our estimates.…”

Section: Resultssupporting

confidence: 90%

Constructing a Spatially Resolved Methane Emission Inventory for the Barnett Shale Region

Lyon

¹

,

Zavala‐Araiza

²

,

Alvarez

³

et al. 2015

Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

“…We found weak linear-correlations between well pad emission rates based on dispersion model inversions and gas production (Figure ). This relationship is statistically significant ( p = 0.05) with a correlation coefficient R equal to 0.57, suggesting that the more gas a well produces, the more CH 4 it releases, which is consistent with a previous study . The total gas production in the Barnett Shale area was reported to be 5,343 million cubic feet per day (mmcf/day) in 2013 ().…”

Section: Resultssupporting

confidence: 86%

Characterizing Fugitive Methane Emissions in the Barnett Shale Area Using a Mobile Laboratory

Lan

¹

,

Talbot

²

,

Laine

³

et al. 2015

Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.