Limiting the risk inherent to geological CO2storage: The importance of predicting inorganic and organic chemical species behavior under supercritical CO2fluid conditions

2014 ◽  
Vol 4 (2) ◽  
pp. 200-209 ◽  
Author(s):  
Pierpaolo Zuddas ◽  
Jean Rillard ◽  
Kitsanai Charoenjit ◽  
Pierre Toulhoat
Keyword(s):  
Chemical Species ◽  
Organic Chemical ◽  
Inorganic And Organic

Inorganic and organic chemical characteristics and sources of suspended particulate matters in Ulaanbaatar, Mongolia

2020 ◽  
Vol 54 (4) ◽  
pp. 267-276
Author(s):  
Koshi Yamamoto ◽  
Yuta Suzuki ◽  
Gochoobazar Oyunjargal ◽  
Hiroyuki Fukuda ◽  
Munkhtsetseg Oidov ◽  
...  
Keyword(s):  
Organic Chemical ◽  
Chemical Characteristics ◽  
Particulate Matters ◽  
Suspended Particulate ◽  
Suspended Particulate Matters ◽  
Inorganic And Organic

Supplementary material to "Modeling the partitioning of organic chemical species in cloud phases with CLEPS (1.1)"

2017 ◽  
Author(s):  
Clémence Rose ◽  
Nadine Chaumerliac ◽  
Laurent Deguillaume ◽  
Hélène Perroux ◽  
Camille Mouchel-Vallon ◽  
...  
Keyword(s):  
Chemical Species ◽  
Organic Chemical ◽  
Supplementary Material

scholarly journals Modeling the partitioning of organic chemical species in cloud phases with CLEPS (1.1)

2017 ◽  
Author(s):  
Clémence Rose ◽  
Nadine Chaumerliac ◽  
Laurent Deguillaume ◽  
Hélène Perroux ◽  
Camille Mouchel-Vallon ◽  
...  
Keyword(s):  
Gas Phase ◽  
Carboxylic Acids ◽  
Aqueous Phase ◽  
Chemical Reactivity ◽  
Chemical Species ◽  
Coupled Model ◽  
Water Soluble ◽  
Organic Chemical ◽  
Particulate Phase ◽  
Particle Dissolution

Abstract. The new detailed aqueous phase mechanism Cloud Explicit Physico-chemical Scheme (CLEPS 1.0), which describes the oxidation of isoprene-derived water-soluble organic compounds, is coupled with a warm microphysical module simulating the activation of aerosol particles into cloud droplets. CLEPS 1.0 was then extended to CLEPS 1.1 to include the chemistry of the newly added di-carboxylic acids dissolved from the particulate phase. The resulting coupled model allows for predicting the aqueous phase concentrations of chemical compounds originating from particle dissolution, mass transfer from the gas phase and in-cloud aqueous chemical reactivity. The aim of the present study was more particularly to investigate the effect of particle dissolution on cloud chemistry. Several simulations were performed to assess the influence of various parameters on model predictions and to interpret long-term measurements conducted at the top of the puy de Dôme (PUY, France) in marine air masses. Specific attention was paid to carboxylic acids, whose predicted concentrations are on average in the lower range of the observations, with the exception of formic acid, which is rather overestimated in the model. The different sensitivity runs highlight the fact that formic and acetic acids mainly originate from the gas phase and have highly variable aqueous-phase reactivity depending on the cloud acidity, whereas C3–C4 carboxylic acids mainly originate from the particulate phase and are supersaturated in the cloud.

scholarly journals Modeling the partitioning of organic chemical species in cloud phases with CLEPS (1.1)

2018 ◽  
Vol 18 (3) ◽  
pp. 2225-2242 ◽  
Author(s):  
Clémence Rose ◽  
Nadine Chaumerliac ◽  
Laurent Deguillaume ◽  
Hélène Perroux ◽  
Camille Mouchel-Vallon ◽  
...  
Keyword(s):  
Gas Phase ◽  
Carboxylic Acids ◽  
Aqueous Phase ◽  
Chemical Reactivity ◽  
Chemical Species ◽  
Coupled Model ◽  
Water Soluble ◽  
Organic Chemical ◽  
Particulate Phase ◽  
Particle Scavenging

Abstract. The new detailed aqueous-phase mechanism Cloud Explicit Physico-chemical Scheme (CLEPS 1.0), which describes the oxidation of isoprene-derived water-soluble organic compounds, is coupled with a warm microphysical module simulating the activation of aerosol particles into cloud droplets. CLEPS 1.0 was then extended to CLEPS 1.1 to include the chemistry of the newly added dicarboxylic acids dissolved from the particulate phase. The resulting coupled model allows the prediction of the aqueous-phase concentrations of chemical compounds originating from particle scavenging, mass transfer from the gas-phase and in-cloud aqueous chemical reactivity. The aim of the present study was more particularly to investigate the effect of particle scavenging on cloud chemistry. Several simulations were performed to assess the influence of various parameters on model predictions and to interpret long-term measurements conducted at the top of Puy de Dôme (PUY, France) in marine air masses. Specific attention was paid to carboxylic acids, whose predicted concentrations are on average in the lower range of the observations, with the exception of formic acid, which is rather overestimated in the model. The different sensitivity runs highlight the fact that formic and acetic acids mainly originate from the gas phase and have highly variable aqueous-phase reactivity depending on the cloud acidity, whereas C3–C4 carboxylic acids mainly originate from the particulate phase and are supersaturated in the cloud.

scholarly journals Cardiac Complications of Propionic and Other Inherited Organic Acidemias

2020 ◽  
Vol 7 ◽  
Author(s):  
Kyung Chan Park ◽  
Steve Krywawych ◽  
Eva Richard ◽  
Lourdes R. Desviat ◽  
Pawel Swietach
Keyword(s):  
Molecular Mechanisms ◽  
Organic Anion ◽  
Experimental Studies ◽  
Chemical Species ◽  
Propionic Acidemia ◽  
Organic Chemical ◽  
Cardiac Complications ◽  
Organic Acidemias ◽  
Clinical Observations ◽  
Experimental Findings

Clinical observations and experimental studies have determined that systemic acid-base disturbances can profoundly affect the heart. A wealth of information is available on the effects of altered pH on cardiac function but, by comparison, much less is known about the actions of the organic anions that accumulate alongside H+ ions in acidosis. In the blood and other body fluids, these organic chemical species can collectively reach concentrations of several millimolar in severe metabolic acidoses, as in the case of inherited organic acidemias, and exert powerful biological actions on the heart that are not intuitive to predict. Indeed, cardiac pathologies, such as cardiomyopathy and arrhythmia, are frequently reported in organic acidemia patients, but the underlying pathophysiological mechanisms are not well established. Research efforts in the area of organic anion physiology have increased dramatically in recent years, particularly for propionate, which accumulates in propionic acidemia, one of the commonest organic acidemias characterized by a high incidence of cardiac disease. This Review provides a comprehensive historical overview of all known organic acidemias that feature cardiac complications and a state-of-the-art overview of the cardiac sequelae observed in propionic acidemia. The article identifies the most promising candidates for molecular mechanisms that become aberrantly engaged by propionate anions (and its metabolites), and discusses how these may result in cardiac derangements in propionic acidemia. Key clinical and experimental findings are considered in the context of potential therapies in the near future.

scholarly journals The evolution of Selenium and Mercury research from 1700 to 2017 based on bibliometric analysis

2020 ◽  
Vol 9 (2) ◽  
pp. e150922177
Author(s):  
Pablo Andrei Nogara ◽  
Gabriela Luisa Schmitz ◽  
Nayara de Souza Costa ◽  
Jean Paul Kamdem ◽  
João Batista Rocha ◽  
...  
Keyword(s):  
United States ◽  
Bibliometric Analysis ◽  
Chemical Elements ◽  
Publication Output ◽  
Inorganic Mercury ◽  
The United States ◽  
Organic Chemical ◽  
Chemical Forms ◽  
Subject Categories ◽  
Inorganic And Organic

Selenium and Mercury are two chemical elements studied in several fields of knowledge due to their chemical properties and interactions. The aim of this study was to analyze the evolution of research activity from 1700 to 2017 on the global trend of these elements, we carried out a bibliometric analysis using the Scopus database. For each keyword accessed (“selenium”, “selenide”, “selenite”, “selenate”, “organoselenium”, “mercury”, “inorganic mercury”, “mercury vapor” and “methylmercury”), we analyzed the publication output, and the top 5 geographic distribution of publications and contributing authors, as well as the top 5 Scopus subject categories where the documents are indexed. The results demonstrated an increase in the number of publication over time for all the keywords. Research about Selenium and its inorganic and organic chemical forms, and Mercury and its inorganic and organic chemical forms were described in approximately 117,000 and 164,000 documents, respectively. United States was the country with the highest number of published documents in all the keywords analyzed. Chemistry, Medicine and Environmental Science were the subject categories with the highest number of documents. Researchers from the United States, China, Japan, Slovenia, and Brazil were in the ranking of the most productive authors. To our knowledge, this is the first bibliometric study on Selenium and Mercury and can be useful to identify potential research groups for scientific collaborations. 

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