Identification of acephenanthrylene and aceanthrylene in aerosol and its environmental implication

Shi, Quan; Wang, Tieguan; Zhong, Ningning; Zhang, Zhihuan; Zhang, Yahe

doi:10.1007/s11434-008-0075-1

Cited by 3 publications

(2 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 4 shows that this source contributed the largest PAH fraction in winter in Shanghai, agreeing with the situation of increasing coal consumption for space heating in this season. Factor 4 is highly loaded with ACP, a good tracer for biomass burning (Shi et al 2008), and shows small fluctuation in all seasons but fall (Fig. 4), which is in accordance with the commonly happening field combustion after harvest in the nearby rural areas.…”

Section: Source Apportionment Of Pahssupporting

confidence: 65%

Polycyclic aromatic hydrocarbons in the atmosphere of Shanghai, China

Chen

Feng

Xiong

et al. 2010

Environ Monit Assess

View full text Add to dashboard Cite

Shanghai is the largest industrial and commercial city in China, and its air quality has been concerned for several years. However, scarce study had been made on the seasonal levels of atmospheric polycyclic aromatic hydrocarbons (PAHs), together with their gas-particle partitioning and potential emission sources. Based on an intensive sampling campaign at urban and suburban areas in Shanghai during four seasons of [2005][2006], this study presented the measurement of PAH concentrations in both particulate and gaseous phases, as well as seasonal and spatial variability. The results showed that the annual PAH levels (gas + particle) were 167 ± at the suburban site. Gaseous PAHs (>70%) dominated the total PAH mass at both sites, while particulate PAHs contributed more than 90% of the toxic power according to benzo(a)pyreneequivalent carcinogenic parameter. Different seasonal trend of PAH concentrations was observed between the two sites, and it may be explained by complicated factors such as sampling heights, local/regional emission sources, and climatic conditions. The gas-particle partitioning of PAHs in all samples was calculated, and strong linear correlations between log K p and log P o L were observed, with shallower slopes (m r ) at the suburban site than the urban one and in warm season than the cold months, indicating the different equilibrium conditions of PAHs in spatial and seasonal scales in Shanghai. The slope (m r = −0.96) and correlation coefficient (R 2 = 0.81) for four-ring PAHs were closest to theoretical equilibrium conditions among compounds with various aromatic rings. Finally, the potential PAH sources were estimated based on principal factor analysis with multiple linear regressions. Ground volatilization dominated the PAH pollutions at both sites, while vehicles and coal consumption were the other main emission sources, which totally contributed 32.0% (suburban) to 49.2% (urban) of PAH mass in Shanghai atmosphere. The effects of wood and biomass burning were also detected, but their contributions to PAHs were negligible. Environ Monit Assess (2011) 172:235-247

show abstract

Section: Source Apportionment Of Pahssupporting

confidence: 65%

Polycyclic aromatic hydrocarbons in the atmosphere of Shanghai, China

Chen

Feng

Xiong

et al. 2010

Environ Monit Assess

View full text Add to dashboard Cite

show abstract

“…Compounds in this serial with a carbon number less than 18 should be azaacenphthylene. Aromatic compounds with these types of core structure widely present in the coal tar and aerosol range in fossil fuel combustion . From the negative-ion ESI analysis, the most abundant neutral N 1 class species had DBE values of 9 and 12, which are carbazoles and benzocarbazoles, respectively.…”

Section: Resultsmentioning

confidence: 99%

Characterization of Nitrogen Compounds in Coker Heavy Gas Oil and Its Subfractions by Liquid Chromatographic Separation Followed by Fourier Transform Ion Cyclotron Resonance Mass Spectrometry

et al. 2010

View full text Add to dashboard Cite

A coker heavy gas oil (CHGO) was separated into saturates, aromatics, resins, and asphaltenes (SARA) fractions. The resin fraction was separated into six subfractions by high-performance liquid chromatography (HPLC). The CHGO and its subfractions were characterized by electrospray ionization (ESI) Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). The mass spectra showed that the mass range of basic and neutral nitrogen compounds was 200−450 and 160−400 Da, respectively. Five nitrogen class species, N1, N2, N1O1, N1O2, and N1S1, were assigned in the positive-ion spectrum. Six nitrogen class species, N1, N2, N1O1, N1O2, N2O1, and N1S1, were assigned in the negative-ion spectrum. Among the identified nitrogen compounds, the N1 class species was dominant. The N1 class species were enriched in the resin fraction. The N2 class species are likely amphoteric molecules and were enriched in the asphaltene fraction. The composition of nitrogen compounds in the resin subfractions varied significantly in double-bond equivalence (DBE) and carbon number. As the polarity of the resin subfraction increased, the average molecular weights of the nitrogen compounds decreased, DBE values for each heteroatom class species increased, and the N2 class species became the dominant nitrogen compounds at the expense of the N1 class species.

show abstract

Characterization of nitroaromatic compounds in atmospheric particulate matter from Beijing

Wang

Zhang

et al. 2021

Atmospheric Environment

View full text Add to dashboard Cite

Identification of acephenanthrylene and aceanthrylene in aerosol and its environmental implication

Cited by 3 publications

References 19 publications

Polycyclic aromatic hydrocarbons in the atmosphere of Shanghai, China

Polycyclic aromatic hydrocarbons in the atmosphere of Shanghai, China

Characterization of Nitrogen Compounds in Coker Heavy Gas Oil and Its Subfractions by Liquid Chromatographic Separation Followed by Fourier Transform Ion Cyclotron Resonance Mass Spectrometry

Characterization of nitroaromatic compounds in atmospheric particulate matter from Beijing

Contact Info

Product

Resources

About