Approaches to identifying and quantifying polycyclic aromatic hydrocarbons of molecular weight 302 in diesel particulates

Sauvain, Jean‐Jacques; Duc, T. Vu

doi:10.1002/jssc.200301620

Cited by 28 publications

(16 citation statements)

References 29 publications

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“…Detection and separation of D[ a,l ]P and other DBPs in Beijing PM were confirmed using authentic standards of structural isomers known to co-elute using traditional chromatography methodologies 7,10,11. Over 20 isomers with a m / z of 302 were baseline separated from SRM 1649b (urban dust) and from Beijing PM.…”

Section: Resultsmentioning

confidence: 87%

Effect of dibenzopyrene measurement on assessing air quality in Beijing air and possible implications for human health

2010

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Size fractionated particulate matter (PM) was collected in summer and winter from Beijing, China for the characterization of an expanded list of PAHs and evaluation of air pollution metrics. Summertime SPAHs on PM was 14.6 AE 29 PM1.5 , 0.88 AE 0.49 PM1.5-7.2 and 0.29 AE 0.076 PM7.2 ng m À3 air while wintertime concentrations were 493 AE 206 PM1.5 , 26.7 AE 14 PM1.5-7.2 and 5.3 AE 2.5 PM7.2 ng m À3 air. Greater than 90% of the carcinogenic PAHs were concentrated on PM 1.5 . Dibenzopyrene isomers made up a significant portion ($30%) of the total carcinogenic PAH load during the winter. To our knowledge, this is the first report of dibenzopyrenes in the Beijing atmosphere and among the few studies that report these highly potent PAHs in ambient particulate matter. Lifetime risk calculations indicated that 1 out of 10 000 to over 6 out of 100 Beijing residents may have an increased risk of lung cancer due to PAH concentration. Over half of the lifetime risk was attributed to Sdibenzopyrenes. The World Health Organization and Chinese daily PM 10 standard was exceeded on each day of the study, however, PAH limits were only exceeded during the winter. The outcomes of the air pollution metrics were highly dependent on the individual PAHs measured and seasonal variation.

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Section: Resultsmentioning

confidence: 87%

Effect of dibenzopyrene measurement on assessing air quality in Beijing air and possible implications for human health

2010

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“…Are they frequently recorded or only rarely, and are they very (site-)specific compounds? Above, the dibenzopyrene isomers were mentioned as highly toxic PAHs that may be relevant for inclusion on any list of environmentally significant PAHs, but up to today no more than some 40 studies report the detection of these compounds in environmental samples: their presence in the environment has been shown in vehicle exhaust (31)(32)(33)(34)(35)(36)(37), air particulate matter (36,(38)(39)(40)(41)(42), house dust (43), coal tar (31,40,44), coal extracts (7), automobile tires (45), particulates from coal combustion (46,47), fly ash (48), sediment and soil (31,40,(49)(50)(51)(52)(53)(54)(55), cigarette smoke (34), and exhaust gases from sewage sludge incineration (56).…”

Section: Other Pah Lists and Relevance Of The Dibenzopyrenesmentioning

confidence: 99%

Time to Say Goodbye to the 16 EPA PAHs? Toward an Up-to-Date Use of PACs for Environmental Purposes

Andersson

Achten²

2015

Polycyclic Aromatic Compounds

477

288

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The 16 EPA PAHs have played an exceptionally large role above all in environmental and analytical sciences in the last 40 years, but now there are good reasons to question their utility in many circumstances even though their use is so established and comfortable. Here we review the reasons why the list has been so successful and why sometimes it is seen as less relevant. Three groups of polycyclic aromatic compounds (PAC) are missing: larger and highly relevant PAHs, alkylated PACs, and compounds containing heteroatoms. Attempts to improve the situation for certain matrixes are known and here: (1) an updated list of PAHs (including the 16 EPA PAHs) for the evaluation of the toxicity in the environment (40 EnvPAHs); (2) a list of 23 NSO-heterocyclic compounds and 6 heterocyclic metabolites; and (3) lists of 10 oxy-PAHs and 10 nitro-PAHs are proposed for practical use in the future. A discussion in the scientific community about these lists is invited. Although the state of knowledge has improved dramatically since the introduction of the 16 EPA PAHs in the 1970s, this summary also shows that more research is needed about the toxicity, occurrence in the environment and chemical analysis, particularly of alkylated PAHs, higher molecular weight PAHs and substituted PACs such as amino-PAHs, cyano-PAHs, etc.. We also suggest that a long overdue discussion of an update of regulatory environmental PAH analysis is initiated.

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“…Although high molecular mass PAHs (molecular mass >300) are not routinely quantified, a number of studies have reported their determination in coal tar and fuel combustion exhaust [22 -24] as well as in environmental samples such as mussels and sediments [23 -25]. Schubert et al [17] and Sauvain and Vu Duc [26] investigated the separation of the m/z 302 isomers in different stationary phases with different polarities including 5% phenyl methyl polysiloxane, 50% phenyl methyl polysiloxane and liquid crystalline stationary phases. The use of 50% phenyl-substituted stationary phases provided a better separation compared to 5% phenyl-substituted ones, while the use of the liquid crystalline column provided a unique selectivity due to the particular retention behaviour on this stationary phase [17].…”

Section: Selectivity In the Presence Of Interfering Compoundsmentioning

confidence: 99%

Optimisation of the GC‐MS conditions for the determination of the 15 EU foodstuff priority polycyclic aromatic hydrocarbons

Bordajandi¹,

Dabrio

Ulberth

et al. 2008

J of Separation Science

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European legislation has recently established a list of 15 priority polycyclic aromatic hydrocarbons (PAHs) to be monitored in foodstuff. Thus, the accurate determination of these compounds has become a highly relevant issue. The fact that some of these European Union (EU) PAHs differ from those typically analysed, requires the re-evaluation of the instrumental conditions for the proper determination of the new target compounds. In this study, the influence of the stationary phase and dimensions of the GC capillary column on the chromatographic resolution of the 15 EU PAHs has been investigated. Apolar (DB-5 type) and medium polar (DB-17 type) stationary phases with different lengths and film thickness have been evaluated for the separation of the target compounds, with special emphasis on those coelutions involving isomers such as the three benzofluoranthenes included in the EU PAHs. In addition, the influence of the injection technique and the column dimensions on the recovery of the high molecular mass PAHs has been studied. A programmable temperature vaporising (PTV) injector has been used in three different operational modes and the results were compared to those obtained using on-column injection. The experimental parameters involved in the injection step were optimised by using experimental design.

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Approaches to identifying and quantifying polycyclic aromatic hydrocarbons of molecular weight 302 in diesel particulates

Cited by 28 publications

References 29 publications

Effect of dibenzopyrene measurement on assessing air quality in Beijing air and possible implications for human health

Effect of dibenzopyrene measurement on assessing air quality in Beijing air and possible implications for human health

Time to Say Goodbye to the 16 EPA PAHs? Toward an Up-to-Date Use of PACs for Environmental Purposes

Optimisation of the GC‐MS conditions for the determination of the 15 EU foodstuff priority polycyclic aromatic hydrocarbons

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