scholarly journals A comprehensive review on anthropogenic volatile organic compounds (VOCs) emission estimates in China: Comparison and outlook

2021 ◽  
Vol 156 ◽  
pp. 106710
Author(s):  
Bowei Li ◽  
Steven Sai Hang Ho ◽  
Xinhe Li ◽  
Liya Guo ◽  
Ao Chen ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Comprehensive Review ◽  
Volatile Organic ◽  
Vocs Emission

scholarly journals INVESTIGATION OF VOLATILE ORGANIC COMPOUNDS (VOCS) EMISSION BEYOND THE TERRITORY OF OIL TERMINALS DURING DIFFERENT SEASONS / LAKIŲJŲ ORGANINIŲ JUNGINIŲ EMISIJOS TYRIMASUŽ NAFTOS TERMINALŲ TERITORIJOS SKIRTINGAIS SEZONAIS / ИССЛЕДОВАНИЕ СЕЗОННЫХ ВЫБРОСОВЛЕГКОЛЕТУЧИХ ОРГАНИЧЕСКИХ СОЕДИНЕНИЙ ЗА ПРЕДЕЛАМИ НЕФТЕБАЗ

2011 ◽  
Vol 19 (1) ◽  
pp. 44-52 ◽  
Author(s):  
Tatjana Paulauskienė ◽  
Vytenis Zabukas ◽  
Petras Vaitiekūnas ◽  
Audronė Žukauskaitė ◽  
Valdas Kvedaras
Keyword(s):  
Air Pollution ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Complex Analysis ◽  
Meteorological Conditions ◽  
Time Intervals ◽  
Chromatography Method ◽  
Volatile Organic ◽  
Different Seasons ◽  
Vocs Emission

The present paper deals with an important environmental issue: air pollution with volatile organic compounds (VOCs) in oil terminals. In attempt to determine the dependence of VOCs concentration in the air on the wind speed and oil loading intensity analyses were carried out during shorter time intervals, when the fluctuations of ambient temperature are minimal (1−3) °C. VOCs concentrations were analysed by gas chromatography method in different chosen observation posts during different seasons. A complex analysis of experimental study and impact of meteorological conditions on the air pollution was performed taking into account the oil loading intensity in oil terminals and the types of loaded oil products. A new indicator was introduced for the analysis of the obtained results—a loading indicator that characterizes the amount and type of handled products as well as the number and type of operations carried out in the terminal. The dependence of the change of VOCs concentration on the loading indicator has been determined. Santrauka Analizuojama svarbi aplinkosauginė problema – oro tarša lakiaisiais organiniais junginiais (LOJ) naftos terminaluose. Siekiant nustatyti LOJ koncentracijos ore priklausomumą nuo vėjo greičio, aplinkos drėgmės ir atmosferos slėgio, atliktitrumpesnės trukmės tyrimai, kai aplinkos temperatūros svyravimai yra minimalūs – 13 ºC. Pasirinktuose stebėjimo postuose dujų chromatografijos būdu nustatytos LOJ koncentracijos skirtingais sezonais. Atlikta kompleksiniai eksperimentiniai tyrimai ir meteorologinių sąlygų (oro temperatūros, aplinkos drėgmės, atmosferos slėgio, vėjo greičio irkrypties) įtakos oro taršai analizė, atsižvelgiant į naftos terminalų krovos intensyvumą ir kraunamų produktų rūšis. Analizuojant gautus duomenis įvestas naujas rodiklis – krovos indikatorius, apibūdinantis kraunamų produktų kiekį, rūšį, terminale atliekamų operacijų skaičių ir pobūdį. Nustatytas LOJ koncentracijos kitimo priklausomumas nuo krovos indikatoriaus. Statistiškai apdorojus rezultatus akivaizdu, kad naftos terminaluose krovos operacijų skaičius ir pobūdis(krovos indikatorius) lemia LOJ koncentraciją pažemės atmosferos sluoksnyje. Atlikus LOJ koncentracijos tyrimo skirtingais sezonais duomenų analizę ir daugiafaktorinę dispersinę analizę, 95 % patikimumu nustatyta, kad LOJ koncentracijos kitimas pažemės atmosferos sluoksnyje priklauso nuo vėjo greičio, kai vėjo stiprumas yra didesnis nei 4 m/s (10 m aukštyje, P < 0,05). Резюме Исследована проблема испарения легколетучих органических соединений (ЛОС) на нефтебазе. Для того, чтобыустановить зависимость концентрации ЛОС от скорости ветра, влажности воздуха и давления атмосферы былопроизведено исследование концентрации ЛОС в воздухе, во время которого изменение температуры непревышало 3 градусов. Методом газовой хроматографии были исследованы сезонные выбросы ЛОС в приземныеслои атмосферы. Комплексно проанализированы полученные экспериментальные данные и метеорологическиеусловия (температура и влажность воздуха, давление атмосферы, сила и направление ветра) с учетомпроизводимых операций по перегрузке нефтепродуктов и их типа. Для более точного анализа полученных данныхбыл сформулирован новый «индикатор погрузки», который характеризует количество и тип перегружаемыхнефтепродуктов, количество и тип производимых технологических операций. В связи с этим была установленазависимость концентрации ЛОС от индикатора погрузки. Статистический анализ данных показал, что количествопроизводимых технологических операций на нефтебазах, а также их тип, влияют на изменение концентрацииЛОС. Анализ исследования сезонных выбросов ЛОС и многофакторный дисперсионный анализ данных с 95%й точностью показали, что изменение концентрации ЛОС в приземных слоях атмосферы зависит от скорости ветрав том случае, если она превышает 4 м/с на высоте 10 м (P < 0.05).

scholarly journals Emissions of Volatile Organic Compounds (VOCs) from an Open-Circuit Dry Cleaning Machine Using a Petroleum-Based Organic Solvent: Implications for Impacts on Air Quality

Atmosphere ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 637
Author(s):  
Hyeonji Lee ◽  
Kyunghoon Kim ◽  
Yelim Choi ◽  
Daekeun Kim
Keyword(s):  
Air Quality ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Organic Solvents ◽  
Secondary Organic Aerosol ◽  
Organic Aerosol ◽  
Tropospheric Chemistry ◽  
Dry Cleaning ◽  
Volatile Organic ◽  
Vocs Emission

Volatile organic compounds (VOCs) are known to play an important role in tropospheric chemistry, contributing to ozone and secondary organic aerosol (SOA) generation. Laundry facilities, using petroleum-based organic solvents, are one of the sources of VOCs emissions. However, little is known about the significance of VOCs, emitted from laundry facilities, in the ozone and SOA generation. In this study, we characterized VOCs emission from a dry-cleaning process using petroleum-based organic solvents. We also assessed the impact of the VOCs on air quality by using photochemical ozone creation potential and secondary organic aerosol potential. Among 94 targeted compounds including toxic organic air pollutants and ozone precursors, 36 compounds were identified in the exhaust gas from a drying machine. The mass emitted from one cycle of drying operation (40 min) was the highest in decane (2.04 g/dry cleaning). Decane, nonane, and n-undecane were the three main contributors to ozone generation (more than 70% of the total generation). N-undecane, decane, and n-dodecane were the three main contributors to the SOA generation (more than 80% of the total generation). These results help to understand VOCs emission from laundry facilities and impacts on air quality.

scholarly journals Bryophytes can recognize their neighbours through volatile organic compounds

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Eliška Vicherová ◽  
Robert Glinwood ◽  
Tomáš Hájek ◽  
Petr Šmilauer ◽  
Velemir Ninkovic
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Ecosystem Functioning ◽  
Vascular Plants ◽  
Flow System ◽  
Land Plants ◽  
Volatile Organic ◽  
Evolution Of Communication ◽  
Vocs Emission ◽  
Plant Plant

AbstractCommunication between vascular plants through volatile organic compounds (VOCs) impacts on ecosystem functioning. However, nothing is known about that between non-vascular plants. To investigate plant–plant VOCs interaction in bryophytes we exposed rare peatland moss Hamatocaulis vernicosus to VOCs of its common competitor Sphagnum flexuosum in an air-flow system of connected containers under artificial light, supplemented or unsupplemented by far-red (FR) light. When exposed to VOCs of S. flexuosum, shoots of H. vernicosus elongated and emitted six times higher amounts of a compound chemically related to β-cyclocitral, which is employed in stress signalling and allelopathy in vascular plants. The VOCs emission was affected similarly by FR light addition, possibly simulating competition stress. This is the first evidence of plant–plant VOCs interaction in non-vascular plants, analogous to that in vascular plants. The findings open new possibilities for understanding the language and evolution of communication in land plants.

scholarly journals The Proof-of-the-Concept of Application of Pelletization for Mitigation of Volatile Organic Compounds Emissions from Carbonized Refuse-Derived Fuel

Materials ◽  
2019 ◽  
Vol 12 (10) ◽  
pp. 1692 ◽  
Author(s):  
Andrzej Białowiec ◽  
Monika Micuda ◽  
Antoni Szumny ◽  
Jacek Łyczko ◽  
Jacek Koziel
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Research Question ◽  
Health And Safety ◽  
Safety Hazard ◽  
Refuse Derived Fuel ◽  
Volatile Organic ◽  
Excessive Risk ◽  
Vocs Emission

Waste can be effectively reused through the production of carbonized refuse-derived fuel (CRDF) that enables further energy recovery. Developing cleaner production of CRDF requires consideration of practical issues of storage and handling. Thus, it needs to be ensured that CRDF does not pose an excessive risk to humans and the ecosystem. Very few studies indicate a wide variety of volatile organic compounds (VOCs) are present in CRDF, some of which are toxic. During handling, storage, transportation, and use of VOC-rich CRDF, workers and end-users could be exposed to emissions that could pose a health and safety hazard. Our recent study shows that CRDF densification via pelletization can increase the efficiency of storage and transportation. Thus, the following research question was identified: can pelletization mitigate VOCs emissions from CRDF during storage? Preliminary research aiming at the determination of the influence of CRDF pelletization on VOCs emission during storage was completed to address this question. The VOCs emissions from two types of CRDF: ground (loose, torrefied refuse-derived fuel (RDF)) and pelletized, were measured. Pelletization reduced the VOCs emissions potential during the four-day storage by ~86%, in comparison with ground CRDF. Mitigation of VOCs emissions from densified CRDF is feasible, and research is warranted to understand the influence of structural modification on VOCs emission kinetics, and possibilities of scaling up this solution into the practice of cleaner storage and transportation of CRDF.

scholarly journals Investigation of volatile organic compounds in the cabin air of new cars

2012 ◽  
Vol 149 (2) ◽  
pp. 39-48
Author(s):  
Anna GOŁDA-KOPEK ◽  
Joanna FABER ◽  
Damian ŁOMANKIEWICZ ◽  
Krzysztof BRODZIK
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Public Concern ◽  
Vehicle Interior ◽  
Solid Sorbents ◽  
Volatile Organic ◽  
Different Types ◽  
Human Health Effects ◽  
Vocs Emission ◽  
Potential Human Health

Potential human health effects of material emissions in new car cabins are of great public concern. In present work, four new cars with different equipment were tested to assess the nature of volatile organic compounds (VOCs) associated with new vehicle interior. Air samples were collected on solid sorbents and analyzed using thermal desorption and GCMS/ FID. Different types of sorbents were applied to effectively adsorb VOCs. The maximal number of VOCs, trapped from the in-vehicle air, was identified and compounds occurring in air from cabins of all examined vehicles were selected and classified. VOCs emission from identified compounds was calculated and potential sources of identified VOCs were discussed. For aromatic hydrocarbons, the comparison of individual VOCs concentrations was performed.

scholarly journals Applied research in volatile organic compounds (VOCs) emission from asphalt pavement

2019 ◽  
Vol 300 ◽  
pp. 032104
Author(s):  
Bo Zou ◽  
Deqin Ran ◽  
Qingtao Zhang ◽  
Chengcheng Li ◽  
Linguo Lu ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Applied Research ◽  
Asphalt Pavement ◽  
Volatile Organic ◽  
Vocs Emission

Study of miniemulsion formulation containing 1-octyl-3-methylimidazolium hexafluorophosphate for its application in low-emitting coating products

Soft Matter ◽  
2015 ◽  
Vol 11 (7) ◽  
pp. 1293-1302 ◽  
Author(s):  
Yiyang Kong ◽  
Binjie Hu ◽  
Kwang-Leong Choy ◽  
Xiaoyu Li ◽  
Guangdi Chen
Keyword(s):  
Ionic Liquids ◽  
Melting Point ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Room Temperature ◽  
Room Temperature Ionic Liquids ◽  
Organic Salts ◽  
Waterborne Coatings ◽  
Volatile Organic ◽  
Vocs Emission

Room temperature ionic liquids (RTILs) are non-volatile organic salts, and few of them with low melting point may replace the conventional coalescing agents in waterborne coatings, thus preventing volatile organic compounds (VOCs) emission, caused by coalescing agents.

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