Ho, Steven Sai Hang published the artcileSeasonal behavior of water-soluble organic nitrogen in fine particulate matter (PM2.5) at urban coastal environments in Hong Kong, Quality Control of 96-20-8, the publication is Air Quality, Atmosphere & Health (2019), 12(4), 389-399, database is CAplus.
Water-soluble organic nitrogen (WSON) in fine particulate matter (PM2.5) was determined at urban coastal environments in China based on 1-yr measurement. The WSON concentrations were in a range of 14.3-257.6 nmol N m-3 and accounted for 22.0-61.2% of the water-soluble nitrogen (WSN) in composition The average total concentration of free amino acid (FAA) was 1264.5 ± 393.0 pmol m-3, which was lower than those in continental urban cities but nevertheless comparable to the rural area of Pearl River Delta (PRD) in China. The total quantified amines and amino compounds ranged from 223.8 to 806.0 pmol m-3 in which methylamine, ethylamine, and ethanolamine were the most abundant compounds The average concentration of urea was 7.8 ± 3.0 nmol m-3 and at least one order of magnitude higher than those in marine and rural areas but comparable to other continental cities in China during non-dust period. Summer showed the highest average concentration of WSON (95.0 ± 66.6 nmol N m-3) and composition in WSN (49.3%) compared to other seasons (27.9-37.0%). The results were consistent with previous findings that the inorganics can contribute more than the organics in secondary aerosol formation. There were no distinctive seasonal variations of organic compositions of FAA, amine and amino compounds, and urea. This observation was possibly attributed to a mix of original sources in urban and different prevailing wind directions. Fair correlations (r < 0.4) between WSON compounds and atm. oxidants [ozone (O3) and nitrogen oxides (NOx)] suggest that biogenic oxidation is possibly not a major contributing factor in atm. coastal urban location.
Air Quality, Atmosphere & Health published new progress about 96-20-8. 96-20-8 belongs to alcohols-buliding-blocks, auxiliary class Amine,Aliphatic hydrocarbon chain,Alcohol, name is 2-Aminobutan-1-ol, and the molecular formula is C4H11NO, Quality Control of 96-20-8.
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https://en.wikipedia.org/wiki/Alcohol,
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