Genotoxic activity of extractable organic matter from urban airborne particles in Shanghai, China

2002 ◽  
Vol 514 (1-2) ◽  
pp. 177-192 ◽  
Author(s):  
Xiansi Zhao ◽  
Zhi Wan ◽  
Gang Chen ◽  
Huigang Zhu ◽  
Shunhui Jiang ◽  
...  
Keyword(s):  
Organic Matter ◽  
Airborne Particles ◽  
Genotoxic Activity ◽  
Extractable Organic Matter

Mutagenicity and polycyclic aromatic hydrocarbons associated with extractable organic matter from airborne particles ⩽10μm in southwest Mexico City

2006 ◽  
Vol 40 (30) ◽  
pp. 5845-5857 ◽  
Author(s):  
Rafael Villalobos-Pietrini ◽  
Omar Amador-Muñoz ◽  
Stefan Waliszewski ◽  
Leonel Hernández-Mena ◽  
Zenaida Munive-Colín ◽  
...  
Keyword(s):  
Organic Matter ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Mexico City ◽  
Aromatic Hydrocarbons ◽  
Airborne Particles ◽  
Polycyclic Aromatic ◽  
Extractable Organic Matter

Chemodiversity of water-extractable organic matter in sediment columns of a polluted urban river in South China

2021 ◽  
Vol 777 ◽  
pp. 146127
Author(s):  
Peng Zhang ◽  
Chun Cao ◽  
Ying-Hui Wang ◽  
Kai Yu ◽  
Chongxuan Liu ◽  
...  
Keyword(s):  
Organic Matter ◽  
South China ◽  
Urban River ◽  
Extractable Organic Matter ◽  
Water Extractable

scholarly journals Untargeted soil metabolomics methods for analysis of extractable organic matter

2015 ◽  
Vol 80 ◽  
pp. 189-198 ◽  
Author(s):  
Tami L. Swenson ◽  
Stefan Jenkins ◽  
Benjamin P. Bowen ◽  
Trent R. Northen
Keyword(s):  
Organic Matter ◽  
Extractable Organic Matter

ORGANIC MATTER CHARACTERISTICS OF UNDISTURBED AND CULTIVATED CHERNOZEMIC AND SOLONETZIC A HORIZONS

1979 ◽  
Vol 59 (4) ◽  
pp. 349-356 ◽  
Author(s):  
J. F. DORMAAR
Keyword(s):  
Organic Matter ◽  
Humic Substances ◽  
Chelating Resin ◽  
Anthropogenic Pressures ◽  
Organic C ◽  
Amide Bonds ◽  
Acid Ratio ◽  
Humic Materials ◽  
Fallow System ◽  
Extractable Organic Matter

Under a wheat-fallow system of farming practised on Brown, Dark Brown, and Black Chernozemic soils, on a Black Solodized Solonetz, and on Brown and Black Solods, organic C decreased by as much as 60%; the humic acid/fulvic acid ratio decreased little for the semiarid soils but up to 38% for the Black soils; ethanol/benzene-extractable organic matter increased by as much as 330%; chelating resin-extractable C increased by 27–115%; and total acidity of the extracted humic substances increased up to 36%. The ash contents of the humic substances from the Ah horizons were all less than 12%, whereas those of the Ap horizons varied between 20 and 28%. Apparent differences between the infrared spectra of the resin-extractable humic substances of the Ah and Ap horizons existed particularly near 2920 and 1550 cm−1 suggesting less aliphatic C-H and amide bonds. Anthropogenic pressures have wrought, therefore, distinct measurable qualitative changes, i.e., the general trend with cultivation was towards humic materials with a decreased proportion of side chain components, such as C-H and NH2 groups, but increased carboxyl group content.

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