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Objective: The aim of the study is to explore personal and work factors related to fatal cardiac events among oil and gas extraction (OGE) workers.
Methods: The National Institute for Occupational Safety and Health Fatalities in Oil and Gas Extraction database was reviewed to identify fatal cardiac events among OGE workers from 2014 through 2019. A case series design was used to review case files, provide descriptive statistics, and summarize the findings.
Results: There were 75 fatalities identified, including 55 (73%) with sufficient information for review. Of the 55 workers, 18 (33%) worked alone. Thirty-six fatal cardiac events (66%) were unwitnessed by a coworker. Toxicology findings suggested some possible exposures to hydrogen sulfide or hydrocarbon gases or vapors. Missing data were common.
Conclusions: This study identified the need for cardiovascular disease prevention and treatment, emergency preparedness, lone worker programs, medical screening, and enhanced exposure control in the OGE industry.
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http://dx.doi.org/10.1097/JOM.0000000000002851 | DOI Listing |
Bioresour Technol
September 2025
State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, PR China; Engineering Research Center of Microbial Enhanced Oil Recovery, East China University of Science and Technol
Carbon dioxide enhanced oil recovery (CO-EOR) is widely used for carbon capture, utilization, and storage in Chinese oilfields, but part of injected CO returns with produced oil, reducing carbon-reduction efficiency. Bioconverting this CO to methane energy by methanogens benefits the technology, yet on-site high-efficiency conversion meeting natural-gas grid standards remains challenging. This study used a newly-designed triple-tank bioreactor to investigate CO-to-methane conversion and methanogenic kinetics of Methanococcus maripaludis.
View Article and Find Full Text PDFJ Colloid Interface Sci
September 2025
State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China.
Reaction intermediates (RI) are key factors that directly determine the efficiency of the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). In this study, a local electric field microenvironment was built in a FeNi and MoNi heterostructure (H-FeNiMo/NMF) to induce the redistribution of hydroxyls and protons on the metal sites during the OER and HER. H-FeNiMo/NMF requires only 270 and 155 mV to reach 100 mA cm in alkaline media for OER and HER, respectively.
View Article and Find Full Text PDFMar Pollut Bull
September 2025
School of Marine Sciences, Sun Yat-sen University, and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519082, China; The Research Center of Ocean Climate, Sun Yat-sen University, Zhuhai 519082, China; Pearl River Estuary Marine Ecosystem Research Station, Ministry of E
Estuarine plumes (EPs) are recognized as critical drivers of dissolved organic matter (DOM) heterogeneity in coastal zones, primarily by inducing phytoplankton blooms and subsequent bottom-water dissolved oxygen (DO) depletion. However, the specific mechanisms governing the EP-driven transformations of DOM molecular composition and biogeochemical fate remain elusive. Here, we integrated optical spectroscopy and Fourier transform ion cyclotron resonance mass spectrometry to characterize the molecular signatures of DOM and their biogeochemical transformations within EP-influenced bottom waters of the Pearl River Estuary.
View Article and Find Full Text PDFJ Am Soc Mass Spectrom
September 2025
Nontargeted Separations Laboratory, Chemistry Department, William & Mary, Integrated Science Center 1053, 540 Landrum Drive, Williamsburg, Virginia 23188, United States.
Fingerprints are routinely used as evidence in forensic investigations. Fingermarks, any mark left by a donor whether a complete print or not, include sweat and oil excreted by the donor. The chemical components of fingermarks are typically analyzed by gas chromatography-mass spectrometry (GC-MS).
View Article and Find Full Text PDFEnviron Sci Technol
September 2025
The Grainger College of Engineering, Department of Civil and Environmental Engineering, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States.
Wastewater solids management is a key contributor to the operational cost and greenhouse gas (GHG) emissions of water resource recovery facilities (WRRFs). This study proposes a 'waste-to-energy' strategy using a hydrothermal liquefaction (HTL)-based system to displace conventional energy- and emission-intensive practices. The proposed system directs HTL-produced biocrude to oil refineries and recovers regionally tailored nitrogen and phosphorus fertilizers.
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