Article
Engineering, Civil
N. Hamamousse, O. Mosbah, A. Kaiss, H. Boutchiche, F. Chaib, Y. Hammane, S-M Terrah, F-Z Sabi, J-P Clerc, A. Chikhaoui, O. Rahli, N. Zekri
Summary: The study explores the flammability and combustibility of partially dried Pinus Halepensis needles using four drying methods. It is found that microwave drying reduces ignition time fluctuations significantly, but slightly decreases residence time compared to infrared radiation and climatic chamber drying techniques.
FIRE SAFETY JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Emer Duffy, Emme Cauven, Aoife Morrin
Summary: Measurement of cooking-associated air pollution indoors is crucial for exposure monitoring and human health risk assessment. The colorimetric sensor array (CSA) provides a new method for characterizing volatile organic compounds produced from cooking, enabling molecular recognition of harmful substances and differentiation of emissions from different sources, such as heated cooking oils. Gas chromatography-mass spectrometry analysis validated the sensor results, demonstrating the potential of the sensor array for evaluating cooking emissions as a source of indoor air pollution.
Article
Environmental Sciences
Gareth J. Stewart, W. Joe F. Acton, Beth S. Nelson, Adam R. Vaughan, James R. Hopkins, Rahul Arya, Arnab Mondal, Ritu Jangirh, Sakshi Ahlawat, Lokesh Yadav, Sudhir K. Sharma, Rachel E. Dunmore, Siti S. M. Yunus, C. Nicholas Hewitt, Eiko Nemitz, Neil Mullinger, Ranu Gadi, Lokesh K. Sahu, Nidhi Tripathi, Andrew R. Rickard, James D. Lee, Tuhin K. Mandal, Jacqueline F. Hamilton
Summary: This study collected and analyzed 29 different fuel types used in residential dwellings in northern India, and measured the emission factors of a wide range of non-methane volatile organic compounds. The results showed that small non-aromatic oxygenated species, phenolics, and furanics were the major contributors to emissions from most fuel types.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2021)
Article
Engineering, Environmental
Xing Wang, Arthur W. H. Chan
Summary: This study compares the particle and gas phase emission factors between cooking with an air fryer and a pan, finding that air frying chicken wings and breast results in higher PM10 emission factors compared to pan cooking. However, by increasing the amount of oil, air frying can achieve higher PM10 emission factors for French fries and asparagus. The emission factors of volatile organic compounds (VOCs) are also generally higher for air frying.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Xiaoming Liang, Laiguo Chen, Ming Liu, Qing Lu, Haitao Lu, Bo Gao, Wei Zhao, Xibo Sun, Jiantie Xu, Daiqi Ye
Summary: Cooking in China not only provides nutrition but also promotes economic growth. The specific cooking styles in China produce carbonyls that have adverse effects on the environment and human health. This study quantitatively evaluated the contribution of carbonyls to common VOCs from cooking activities in China and suggested that control measures targeting carbonyls might be more efficient.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Geosciences, Multidisciplinary
Andrew Jensen, Zhiqiang Liu, Wen Tan, Barbara Dix, Tianshu Chen, Abigail Koss, Liang Zhu, Li Li, Joost de Gouw
Summary: The COVID-19 outbreak in 2020 led to strict lockdowns, reducing human activity and emissions of air pollutants. VOCs were measured in Changzhou, China, showing different responses from industrial sources, indicating they should not be uniformly scaled.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Green & Sustainable Science & Technology
Yeong Jia Boom, Marie Enfrin, Dai Lu Xuan, Stephen Grist, Dilan Robert, Filippo Giustozzi
Summary: Recycled plastic modified asphalt is a new topic in the road construction industry. This study investigated the use of four types of recycled plastic in asphalt and found that except for the mixture at 180 degrees Celsius, adding recycled plastic can effectively reduce overall emissions.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Biochemistry & Molecular Biology
Elise Bertheau, Valerie Simon, Christine Delgado Raynaud
Summary: Volatile organic compounds are a concern for indoor air quality and are emitted from construction materials. Previous studies on binderless panels mainly focused on optimizing panel characteristics, while this research aims to document emissions from binderless panels and analyze the volatile composition of wood processing through different manufacturing processes.
Article
Environmental Sciences
E. M. Beckett, E. Miller, K. Unice, E. Russman, J. S. Pierce
Summary: In this study, the chemical emissions from two new memory foam mattresses were evaluated. It was found that the airborne concentrations of chemicals associated with the mattresses peaked on the first day and gradually decreased over the following 31 days. The study suggests that the use of these mattresses is unlikely to pose a health risk to consumers.
Article
Forestry
Ingvild Ryde, Tao Li, Jolanta Rieksta, Bruna M. dos Santos, Elizabeth H. J. Neilson, Oliver Gericke, Jane U. Jepsen, Louise R. H. Bork, Hildur S. Holm, Riikka Rinnan
Summary: The study found that in the Subarctic region, insect herbivory, elevation, and season have significant effects on foliar VOC emissions and specialized compound contents of mountain birch. Herbivory increases emissions of certain compounds, with specific compounds being the most responsive in herbivory treatments. At high elevation, herbivory only increased emissions of homoterpenes.
Article
Environmental Sciences
Yeong Jia Boom, Marie Enfrin, Stephen Grist, Filippo Giustozzi
Summary: This research investigates the fumes generated from producing polymer modified bitumen using different types of recycled plastics. The results show that incorporating recycled plastics can reduce emissions of volatile organic compounds and polycyclic aromatic hydrocarbons. However, specific compound concentrations may spike when recycled plastics are added, despite an overall reduction in concentration.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Dong-Yi He, Xiao-Feng Huang, Jing Wei, Feng-Hua Wei, Bo Zhu, Li-Ming Cao, Ling-Yan He
Summary: The role of coarse particles in the atmosphere has been underestimated, but recent studies have shown that they can strongly influence clouds, ecosystems, and climate. This study focused on the formation of secondary organic aerosol (SOA) and found that oxygenated organic matter was abundant in the coarse mode. The source apportionment analysis indicated that biogenic SOA existed more in the coarse mode than in the fine mode, and the SOA in the coarse mode showed a unique correlation with biogenic volatile organic compounds (VOCs). This suggests a potential pathway of heterogeneous reactions on coarse particles that contribute to the formation of biogenic SOA and the sink of biogenic VOCs in global biogeochemical cycles.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Neda Nematollahi, Justine Lew Weinberg, Jennifer Flattery, Nigel Goodman, Spas D. Kolev, Anne Steinemann
Summary: The study examined VOC emissions from 14 commercially available essential oils with therapeutic claims and found a variety of potentially hazardous compounds being emitted. Common VOCs in the essential oils included acetaldehyde, limonene, and methanol, with some oils emitting over 9 potentially hazardous VOCs each. Less than 1% of these VOCs were listed on product labels or safety data sheets, highlighting the need for increased awareness of potential exposures and risks.
AIR QUALITY ATMOSPHERE AND HEALTH
(2021)
Article
Forestry
Qifan Wang, Jun Shen, Bin Zeng, Huiyu Wang
Summary: This study focused on identifying odorant compounds in paper mulberry and exploring the influence of moisture content on VOCs and odor emissions. Aromatic compounds and aldehydes ketones were found to be the main odorant compounds in heartwood and sapwood. As moisture content decreased, TVOC and total odor intensity generally decreased, with a greater effect on VOC release when the moisture content decreased from 70 to 50% and from fiber saturation point to air saturation point.
WOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Environmental Sciences
Daqi Lv, Sihua Lu, Shuyu He, Kai Song, Min Shao, Shaodong Xie, Yuanzheng Gong
Summary: An inventory of volatile organic compound (VOC) emissions from a petroleum refinery in Hebei was established, identifying key emissions sources and species for potential reduction efforts. The study evaluated the ozone (O-3) formation potential (OFP) and secondary organic aerosol formation potential (SOAP), highlighting alkenes and aromatics as priority control compounds. The research provides insight into emissions intensity, components, and reactivity for future emissions reduction strategies in the petrochemical industry.