FTIR analysis and evaluation of carcinogenic and mutagenic risks of nitro-polycyclic aromatic hydrocarbons in PM 1.0

Schneider, Ismael L.; Teixeira, Elba Calesso; Agudelo-Castañeda, Dayana Milena; Silva, Gabriel Silva e; Balzaretti, Naira Maria; Braga, Marcel Ferreira; Oliveira, Luís Felipe Silva

doi:10.1016/j.scitotenv.2015.09.142

Cited by 82 publications

(20 citation statements)

References 58 publications

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“…Carcinogenic and mutagenic risk assessments 15,60–63,67–69 induced by inhalation of PM2.5-bound enriched with selected nitro-PAHs (1-NPYR, 2-NPYR, 2-NFLT, 3-NFLT, 2-NBA, and 3-NBA) and PAHs (PYR, FLT, BaP, and BaA) were estimated in the bus station and coastal site samples according to calculations done by Wang et al . 60 , Nascimento et al .…”

Section: Methodsmentioning

confidence: 99%

“…61 , and Schneider et al . 67 PAH and PAH derivatives risk assessment is done in terms of BaP toxicity, which is well established 67–73 . The daily inhalation levels (E I ) were calculated as:where E I (ng person −1 day −1 ) is the daily inhalation exposure, IR (m³ d −1 ) is the inhalation rate (m³ d −1 ), BaP eq is the equivalent of benzo[a]pyrene (BaP eq = Σ C i × TEF i ) (in ng m −3 ), C i is the PM2.5 concentration level for a target compound i , and TEF i is the toxic equivalent factor of the compound i .…”

Section: Methodsmentioning

confidence: 99%

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Occurrence of the potent mutagens 2- nitrobenzanthrone and 3-nitrobenzanthrone in fine airborne particles

Santos

Rocha

Andrade

2019

Sci Rep

12,479

435

8,322

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Polycyclic aromatic compounds (PACs) are known due to their mutagenic activity. Among them, 2-nitrobenzanthrone (2-NBA) and 3-nitrobenzanthrone (3-NBA) are considered as two of the most potent mutagens found in atmospheric particles. In the present study 2-NBA, 3-NBA and selected PAHs and Nitro-PAHs were determined in fine particle samples (PM 2.5) collected in a bus station and an outdoor site. The fuel used by buses was a diesel-biodiesel (96:4) blend and light-duty vehicles run with any ethanol-to-gasoline proportion. The concentrations of 2-NBA and 3-NBA were, on average, under 14.8 µg g−1 and 4.39 µg g−1, respectively. In order to access the main sources and formation routes of these compounds, we performed ternary correlations and multivariate statistical analyses. The main sources for the studied compounds in the bus station were diesel/biodiesel exhaust followed by floor resuspension. In the coastal site, vehicular emission, photochemical formation and wood combustion were the main sources for 2-NBA and 3-NBA as well as the other PACs. Incremental lifetime cancer risk (ILCR) were calculated for both places, which presented low values, showing low cancer risk incidence although the ILCR values for the bus station were around 2.5 times higher than the ILCR from the coastal site.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Occurrence of the potent mutagens 2- nitrobenzanthrone and 3-nitrobenzanthrone in fine airborne particles

Santos

Rocha

Andrade

2019

Sci Rep

12,479

435

8,322

View full text Add to dashboard Cite

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“…The oil degraded by each strain was measured by Fourier transform infrared spectroscopy (FTIR) [3]. About 2 mg of the dried petroleum was carefully mixed with 300 mg of dry KBr and pressed into a self-supporting pellet.…”

Section: Methodsmentioning

confidence: 99%

“…PAHs are widespread environmental pollutants commonly found in soil, surface waters, and sediments and their fate in nature is of great environmental concern due to their potential hazards of toxicity, mutagenicity, and carcinogenicity [2,3]. Recent research has shown that chronic exposure to PAHs is associated with cancerous diseases in aquatic animals and enhanced mutagenicity of sediments.…”

Section: Introductionmentioning

confidence: 99%

Removal Capacities of Polycyclic Aromatic Hydrocarbons (PAHs) by a Newly Isolated Strain from Oilfield Produced Water

Wang

et al. 2017

IJERPH

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The polycyclic aromatic hydrocarbon (PAH)-degrading strain Q8 was isolated from oilfield produced water. According to the analysis of a biochemical test, 16S rRNA gene, house-keeping genes and DNA–DNA hybridization, strain Q8 was assigned to a novel species of the genus Gordonia. The strain could not only grow in mineral salt medium (MM) and utilize naphthalene and pyrene as its sole carbon source, but also degraded mixed naphthalene, phenanthrene, anthracene and pyrene. The degradation ratio of these four PAHs reached 100%, 95.4%, 73.8% and 53.4% respectively after being degraded by Q8 for seven days. A comparative experiment found that the PAHs degradation efficiency of Q8 is higher than that of Gordonia alkaliphila and Gordonia paraffinivorans, which have the capacities to remove PAHs. Fourier transform infrared spectra, saturate, aromatic, resin and asphaltene (SARA) and gas chromatography–mass spectrometry (GC–MS) analysis of crude oil degraded by Q8 were also studied. The results showed that Q8 could utilize n-alkanes and PAHs in crude oil. The relative proportions of the naphthalene series, phenanthrene series, thiophene series, fluorene series, chrysene series, C21-triaromatic steroid, pyrene, and benz(a)pyrene were reduced after being degraded by Q8. Gordonia sp. nov. Q8 had the capacity to remediate water and soil environments contaminated by PAHs or crude oil, and provided a feasible way for the bioremediation of PAHs and oil pollution.

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“…Most of the research studies involved in associating adverse health effects on humans with the atmospheric particles are restricted only to the size of atmospheric PM 1 (particulate matter) (submicron particles having aerodynamic diameter ≤ 1 μm) [9] and PM 2.5 (fine particles having aerodynamic diameter ≤ 2.5 μm) [10]. However, information on other size fractions of atmospheric PM is scarce.…”

Section: Introductionmentioning

confidence: 99%

Exposure to Atmospheric Particulates and Associated Respirable Deposition Dose to Street Vendors at the Residential and Commercial Sites in Dehradun City

Prabhu

Gupta

Madhwal

et al. 2019

Safety and Health at Work

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Background Street vendors spend relatively more time near roadways and are vulnerable to air pollution related health disorders. However, there is limited information on the quality of the air they breathe. The objectives of this present study were to calculate the mass concentration of atmospheric particulate matter (PM) in eight size fractions (PM 0.4–0.7 , PM 0.7–1.1 , PM 1.1–2.1 , PM 2.1–3.3 , PM 3.3–4.7 , PM 4.7–5.8 , PM 5.8–9.0 , and PM 9.0-–0μm ) at commercial (CML) and residential site (RSL) in Dehradun city from November 2015 to May 2016. To estimate the corresponding respiratory deposition dose (RDDs) in alveolar (AL), tracheobronchial (TB), and head airway (HD) region on street vendors working at CML and RSL. To find the association of atmospheric PM with RDDs and the incidence of respiratory related disorders among street vendors. Methods Andersen cascade impactor was employed for calculating the PM mass concentration. Questionnaire based health survey among street vendors were carried out through personal interview. Results A significant difference (p < 0.05; t-test) between the mean PM 0.4-10μm mass concentration at CML and RSL was observed with (mean ± SD) 84.05 ± 14.5 and 77.23 ± 11.7 μg m −3 , respectively. RDDs in AL, TB and HD region at CML was observed to be 9.9, 7.8, and 7.3% higher than at RSL, respectively. Health survey revealed 1.62, 0.96, 0.04, and 0.57 times higher incidence of cold, cough, breathlessness, and chest pain, respectively with street vendors at CML compared to RSL. Conclusion The site characteristics plays a major role in the respiratory health status of street vendors at Dehradun.

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FTIR analysis and evaluation of carcinogenic and mutagenic risks of nitro-polycyclic aromatic hydrocarbons in PM 1.0

Cited by 82 publications

References 58 publications

Occurrence of the potent mutagens 2- nitrobenzanthrone and 3-nitrobenzanthrone in fine airborne particles

Occurrence of the potent mutagens 2- nitrobenzanthrone and 3-nitrobenzanthrone in fine airborne particles

Removal Capacities of Polycyclic Aromatic Hydrocarbons (PAHs) by a Newly Isolated Strain from Oilfield Produced Water

Exposure to Atmospheric Particulates and Associated Respirable Deposition Dose to Street Vendors at the Residential and Commercial Sites in Dehradun City

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