Characterization of nitroaromatic compounds in atmospheric particulate matter from Beijing

Wang, Zhiheng; Zhang, Jingyi; Zhang, Lingzhi; Liang, Yongmei; Shi, Quan

doi:10.1016/j.atmosenv.2020.118046

Cited by 25 publications

(19 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nitroaromatic compounds have been widely detected in the ambient air, [156][157][158] while secondary formation was also found to be a signicant source in certain ambient locations. 157,158 Wang et al observed that the two most abundant nitroaromatics were 4-nitrophenol and 4-nitrocatechol and demonstrated that the abundance and formation of nitroaromatics were highly related to high NO x and aromatic compound (i.e., toluene and benzene) concentrations. 156 The photooxidation of benzene and toluene in the presence of NO x , instead of primary biomass burning emissions, was suggested to be the dominant source of ambient nitroaromatics.…”

Section: Optical Absorptionmentioning

confidence: 99%

Secondary organic aerosol formation from monocyclic aromatic hydrocarbons: insights from laboratory studies

Yang

et al. 2022

Environ. Sci.: Processes Impacts

View full text Add to dashboard Cite

show abstract

Section: Optical Absorptionmentioning

confidence: 99%

Secondary organic aerosol formation from monocyclic aromatic hydrocarbons: insights from laboratory studies

Yang

et al. 2022

Environ. Sci.: Processes Impacts

View full text Add to dashboard Cite

show abstract

“…Nitroaromatic hydrocarbon compounds (NAHs) have been found in particulate matter (Herterich and Herrmann, 1990;Delhomme et al, 2010), rainwater (Grosjean, 1991;Belloli et al, 2006), clouds (Lüttke et al, 1997), water (Herterich, 1991;Rubio et al, 2012), snow (Leuenberger et al, 1988), soil (Vozňáková et al, 1996), and fog (Richartz et al, 1990;Harrison et al, 2005), and even in remote areas such as in Terra Nova Bay, Antarctica (Vanni et al, 2001). More recently, nitroaromatics have been reported in aerosol composition (Vidović et al, 2018) from urban area samples from Nagoya, Japan (Ikemori et al, 2019), Paris, France (Lanzafame et al, 2021), and Beijing, China (Wang et al, 2021). Nitrocatechols have been found as tracer compounds in particulate matter emitted during biomass burning, correlating well with the levoglucosan and NO x levels (Kitanovski et al, 2012b, a;Salvador et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Investigations into the gas-phase photolysis and OH radical kinetics of nitrocatechols: implications of intramolecular interactions on their atmospheric behaviour

et al. 2022

View full text Add to dashboard Cite

Abstract. The Environmental Simulation Chamber made of Quartz from the University “Alexandru Ioan Cuza” (ESC-Q-UAIC), at Iasi, Romania, was used to investigate the gas-phase reaction rate coefficients for four nitrocatechols toward OH radicals under simulated atmospheric conditions. Employing relative rate techniques at a temperature of 298 ± 2 K and a total air pressure of 1 atm, the obtained rate coefficients (in 10−12 cm3 s−1) were as follows: k3NCAT = (3.41 ± 0.37) for 3-nitrocatechol and k5M3NCAT = (5.55 ± 0.45) for 5-methyl-3-nitrocatechol at 365 nm, using CH3ONO photolysis as OH radicals source and dimethyl ether and cyclohexane as reference compounds, and k4NCAT = (1.27 ± 0.19) for 4-nitrocatechol and k4M5NCAT = (0.92 ± 0.14) for 4-methyl-5-nitrocatechol at 254 nm using H2O2 as OH radicals source and dimethyl ether and methanol as reference compounds. The photolysis rates in the actinic region, scaled to atmospheric relevant conditions by NO2 photolysis, were evaluated for 3-nitrocatechol and 5-methyl-3-nitrocatechol: J3NCAT = (3.06 ± 0.16) × 10−4 s−1 and J5M3NCAT = (2.14 ± 0.18) × 10−4 s−1, respectively. The photolysis rate constants at 254 nm were measured for 4-nitrocatechol and 4-methyl-5-nitrocatechol and the obtained values are J4NCAT = (6.7 ± 0.1) × 10−5 s−1 and J4M5NCAT = (3.2 ± 0.3) × 10−5 s−1. Considering the obtained results, our study suggests that photolysis may be the main degradation process for 3-nitrocatechol and 5-methyl-3-nitrocatechol in the atmosphere, with a photolytic lifetime in the atmosphere of up to 2 h. Results are discussed in terms of the reactivity of the four nitrocatechols under investigation toward OH-radical-initiated oxidation and their structural features. The rate coefficient values of the nitrocatechols are also compared with those estimated from the structure-activity relationship for monocyclic aromatic hydrocarbons and assessed in relation to their gas-phase IR spectra. Additional comparison with similar compounds is also presented, underlining the implications toward possible degradation pathways and atmospheric behaviour.

show abstract

“…The absorption spectrum and total organic carbon concentration of the ethylbenzene SOA extract solutions at 200-600 nm were measured by UV-6100S spectrophotometer and total organic carbon analyzer (TOC-L, Shimadzu Company, Japan). The mass absorption coefficient averaged over 200-600 nm (<MAC>) of ethylbenzene SOA was obtained according to formula (1) and (2).…”

Section: Optical Characterization Of Ethylbenzene Soamentioning

confidence: 99%

“…Nitro-aromatic compounds (NACs), especially for the -OH and -NO 2 groups attached to the aromatic ring, such as nitrophenols, nitrocatechols and their derivatives, are an important class of organic nitrogen of aerosol particles in atmosphere [1][2]. NACs have been detected in urban and rural atmosphere, with the concentrations ranged from 0.1 to 147.4 ng/m 3 [2][3][4]. The observational field experiments demonstrated that biomass combustion contributed about 10-21% of the NACs in aerosol particles [5][6].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Nitro-Aromatic Compounds of Ethylbenzene Secondary Organic Aerosol with Acidic Sodium Nitrate Fine Particles

Zhang¹,

Huang²,

Lü³

et al. 2021

Pol. J. Environ. Stud.

View full text Add to dashboard Cite

Acidic sodium nitrate (NaNO 3 ) is the fine particles commonly found in urban atmosphere, which is beneficial to the formation of nitro-aromatic compounds (NACs). The NACs and optics of secondary organic aerosol (SOA) generated from the photo-oxidation of ethylbenzene with acid NaNO 3 fine particles were characterized in the current study. The results demonstrated that acidic NaNO 3 can significantly promote the formation of SOA. Compared with the carbonyls detected in SOA without fine particles, nitrophenols, nitrocatechols and their derivatives are measured as the major components of SOA with acid NaNO 3 . The N=O chromosphore in NACs enhanced the light absorption capacity of SOA. The mass absorption coefficient averaged over 200-600 nm () of SOA gradually increased with the increasing of acidic NaNO 3 . While, the of SOA with 100 μg/m 3 acidic NaNO 3 was comparable to that of biomass burning organic aerosols. These would provide the experimental basis for studying the formation and optics of anthropogenic NACs in the background of high concentration of acid NaNO 3 fine particles.

show abstract

Characterization of nitroaromatic compounds in atmospheric particulate matter from Beijing

Cited by 25 publications

References 64 publications

Secondary organic aerosol formation from monocyclic aromatic hydrocarbons: insights from laboratory studies

Secondary organic aerosol formation from monocyclic aromatic hydrocarbons: insights from laboratory studies

Investigations into the gas-phase photolysis and OH radical kinetics of nitrocatechols: implications of intramolecular interactions on their atmospheric behaviour

Characterization of Nitro-Aromatic Compounds of Ethylbenzene Secondary Organic Aerosol with Acidic Sodium Nitrate Fine Particles

Contact Info

Product

Resources

About