High molecular weight organic compounds (HMW-OCs) in severe winter haze: Direct observation and insights on the formation mechanism

2016 ◽  
Vol 218 ◽  
pp. 289-296 ◽  
Author(s):  
F.K. Duan ◽  
K.B. He ◽  
Y.L. Ma ◽  
T. Ihozaki ◽  
H. Kawasaki ◽  
...  
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Organic Compounds ◽  
Formation Mechanism ◽  
Direct Observation ◽  
Severe Winter

Enhancing biological stability of disinfectant-free drinking water by reducing high molecular weight organic compounds with ultrafiltration posttreatment

2019 ◽  
Vol 164 ◽  
pp. 114927 ◽  
Author(s):  
R. Schurer ◽  
J.C. Schippers ◽  
M.D. Kennedy ◽  
E.R. Cornelissen ◽  
S.G. Salinas-Rodriguez ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Drinking Water ◽  
High Molecular Weight ◽  
Organic Compounds ◽  
Biological Stability

Thermal Data on Organic Compounds. XXV. Some Heat Capacity, Entropy and Free Energy Data for Nine Hydrocarbons of High Molecular Weight

1949 ◽  
Vol 71 (10) ◽  
pp. 3386-3389 ◽  
Author(s):  
George S. Parks ◽  
George E. Moore ◽  
Melvin L. Renquist ◽  
Benjamin F. Naylor ◽  
Leslie A. McClaine ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Heat Capacity ◽  
Free Energy ◽  
High Molecular Weight ◽  
Organic Compounds ◽  
Energy Data ◽  
Thermal Data

Determination of the coking capacity of mixtures of high-molecular-weight organic compounds

1991 ◽  
Vol 27 (10) ◽  
pp. 580-582
Author(s):  
M. Yu. Dolomatov ◽  
S. I. Amirova ◽  
Z. F. Kuz'mina ◽  
S. P. Lomakin
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Organic Compounds

scholarly journals Biogenic, urban, and wildfire influences on the molecular composition of dissolved organic compounds in cloud water

2017 ◽  
Author(s):  
Ryan D. Cook ◽  
Ying-Hsuan Lin ◽  
Zhuoyu Peng ◽  
Eric Boone ◽  
Rosalie K. Chu ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Organic Carbon ◽  
High Molecular Weight ◽  
Organic Compounds ◽  
Aqueous Phase ◽  
Water Samples ◽  
Cloud Water ◽  
Molecular Composition ◽  
Oxidation Products ◽  
Aerosol Formation

Abstract. Organic aerosol formation and transformation occurs within aqueous aerosol and cloud droplets, yet little is known about the composition of high molecular weight organic compounds in cloud water. Cloud water samples collected at Whiteface Mountain, New York during August–September 2014 were analyzed by ultrahigh-resolution mass spectrometry to investigate the molecular composition of dissolved organic carbon, with focus on sulfur- and nitrogen-containing compounds. Organic molecular composition was evaluated in the context of cloud water inorganic ion concentrations, pH, and total organic carbon concentrations to gain insights into the sources and aqueous phase processes of the observed high molecular weight organic compounds. The molecular composition of the cloud water depended on the influencing sources (biogenic, urban, wildfire) and showed evidence of aqueous-phase processes. Cloud water acidity was correlated with the average oxygen:carbon ratio of the organic constituents, suggesting the influence of aqueous acid-catalyzed oxidation processes. Organosulfate compounds, with both biogenic and anthropogenic volatile organic compound precursors, were detected for cloud water samples influenced by air masses that had traveled over forested and populated areas. Oxidation products of long-chain (C10-12) alkane precursors were detected during urban influence. Influence of Canadian wildfires resulted in increased numbers of identified sulfur-containing compounds and oligomeric species, including those formed through aqueous-phase reactions involving methylglyoxal. Light absorbing aqueous-phase products of syringol and guaiacol oxidation were observed in the wildfire-influenced samples, and dinitroaromatic compounds were observed in all cloud water samples (wildfire, biogenic/urban, and urban-influenced).

Evaluating Nephrotoxicity of High-Molecular-Weight Organic Compounds in Drinking Water from Lignite Aquifers

2007 ◽  
Vol 70 (24) ◽  
pp. 2089-2091 ◽  
Author(s):  
Joseph E. Bunnell ◽  
Calin A. Tatu ◽  
Harry E. Lerch ◽  
William H. Orem ◽  
Nikola Pavlovic
Keyword(s):  
Molecular Weight ◽  
Drinking Water ◽  
High Molecular Weight ◽  
Organic Compounds
Sign in / Sign up

Export Citation Format

Share Document