Bromo- and bromochloro-polynuclear aromatic hydrocarbons, dioxins and dibenzofurans in municipal incinerator fly ash

Sovocool, G. Wayne; Mitchum, R. K.; Tondeur, Yves; Munslow, W.D.; Vonnahme, T.L.; Donnelly, J.R.

doi:10.1002/bms.1200151205

Cited by 53 publications

(29 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Incineration is considered the appropriate fate for SHRS, despite the fact that it generates atmospheric pollution, including heavy metals, polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofuranes (PCDFs), polyaromatic hydrocarbons (PAHs), acid gases, and other deleterious organic materials (Sovocool et al 1988;Hong et al 2000;Kuo et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Occupational airborne contamination in South Brazil: 2. Oxidative stress detected in the blood of workers of incineration of hospital residues

et al. 2009

View full text Add to dashboard Cite

One of the most useful methods for elimination of solid residues of health services (SRHS) is incineration. However, it also provokes the emission of several hazardous air pollutants such as heavy metals, furans and dioxins, which produce reactive oxygen species and oxidative stress. The present study, which is parallel to an accompanied paper (Avila Jr. et al., this issue), investigated several enzymatic and non-enzymatic biomarkers of oxidative stress in the blood (contents of vitamin E, lipoperoxidation = TBARS, reduced glutathione = GSH, oxidized glutathione = GSSG, and activities of glutathione S-transferase = GST, glutathione reductase = GR, glutathione peroxidase = GPx, catalase = CAT and superoxide dismutase = SOD), in three different groups (n = 20 each) exposed to airborne contamination associated with incineration of SRHS: workers directly (ca. 100 m from the incinerator) and indirectly exposed (residents living ca. 5 km the incineration site), and controls (non-exposed subjects). TBARS and GSSG levels were increased whilst GSH, TG and alpha-tocopherol contents were decreased in workers and residents compared to controls. Increased GST and CAT activities and decreased GPx activities were detected in exposed subjects compared to controls, while GR did not show any difference among the groups. In conclusion, subjects directly or indirectly exposed to SRHS are facing an oxidative insult and health risk regarding fly ashes contamination from SRHS incineration.

show abstract

Section: Introductionmentioning

confidence: 99%

Occupational airborne contamination in South Brazil: 2. Oxidative stress detected in the blood of workers of incineration of hospital residues

et al. 2009

View full text Add to dashboard Cite

show abstract

“…Also the presence of mixed brominate~chlorinated dibenzo-p-dioxins and -dibenzofurans (PXDDs and PXDFs with X=C1, Br) in municipal waste incinerator fly ash has been shown [3,4]. However, the analysis of PBDD/PBDFs and the mixed halogenated PXDD/PXDFs (X=CI, Br) is accompanied with difficulties.…”

Section: Introductionmentioning

confidence: 99%

The role of bromine in the de novo synthesis in a model fly ash system

Luijk¹,

Dorland²,

Smit³

et al. 1994

Chemosphere

View full text Add to dashboard Cite

The role of bromine in de novo synthesis in a model fly ash system. Luijk, R.; Dorland, C.; Smit, P.; Jansen, J.; Govers, H.A.J. Published in: Chemosphere DOI:10.1016/0045-6535(94) Link to publication Citation for published version (APA):Luijk, R., Dorland, C., Smit, P., Jansen, J., & Govers, H. A. J. (1994). The role of bromine in de novo synthesis in a model fly ash system. Chemosphere, 28(7), 1299-1309. DOI: 10.1016/0045-6535(94)90074-4 General rightsIt is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s) and/or copyright holder(s), other than for strictly personal, individual use, unless the work is under an open content license (like Creative Commons). Disclaimer/Complaints regulationsIf you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: http://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible. Download date: 10 May 2018Pergamon 0045-6535(94)E0062-X Chemosphere, Vol. 28, No. 7, pp. 1299-1309, 1994 Copyright © 1994 Elsevier Science Ltd Printed in Great Britain. All rights reserved 0045-6535/94 $7.004-0.00 THE ROLE OF BROMINE IN THE DE NOVO SYNTHESIS IN A MODEL FLY ASH SYSTEM ABSTRACTThe role of bromine in the de novo synthesis in a model fly ash system has been evaluated. A silica-alumina carrier was impregnated with a CuX7 catalyst system (X=C1, 0.5 wt%; X=Br, 0.8 wt%). A flow of air with 5 vol. % I-IX (X=C1 or Br) was passed over a fixed bed at 300°C. Several processes have been investigated concerning the role of bromine and chlorine in the formation of polyhalogenated dibenzo-p-dioxins and -dibenzofurans in municipal waste incinerator fly ash under conditions observed in an electrostatic precipitator:The exchange of bromine and chlorine in 2,3,7,8-tetrabromodibenzo-p-dioxin; The reactivity and selectivity of bromine and chlorine in the halogenation of the parent structures dibenzo-p-dioxin and dibenzofuran;The competition of bromine and chlorine in the de novo synthesis. INTRODUCTIONThe last decade several studies about the formation of polybrominated dibenzo-p-dioxins and -dibenzofurans (PBDDs and PBDFs) during thermal degradation of polymers containing brominated flame retardants have been published [1,2]. Also the presence of mixed brominate~chlorinated dibenzo-p-dioxins and -dibenzofurans (PXDDs and PXDFs with X=C1, Br) in municipal waste incinerator fly ash has been shown [3,4]. However, the analysis of PBDD/PBDFs and the mixed halogenated PXDD/PXDFs (X=CI, Br) is accompanied with difficulties. The physico-chemical properties of polybrominated compounds, i.e. high molecular weight, high melting point, low vapour pressure and low thermal stability requires a sop...

show abstract

“…Materials included in fly ashes from SHRS, such as heavy metals, PCDDs, PCDFs and probably PAHs [42,43] are prone to accumulate, and accumulation will increase proportionally to the duration of the exposure to fly ashes both in subjects directly and also indirectly exposed, such as the population living near the incinerator [44]. In this regard, subjects from our study were exposed for around five years in average, whilst the workers were exposed for almost 4 years [2].…”

Section: Srhs Incinerationmentioning

confidence: 77%

Systemic Oxidative Stress Promoted by Emissions of Particulate Matter is Attenuated by Antioxidant Supplementation

Possamai¹,

Avila²,

Filho³

2015

eee

View full text Add to dashboard Cite

Emissions of different types of airborne particulate matter (PM) is associated either with occupational contamination that affect both, workers directly exposed to the distinct PM sources such as incineration of solid residues of health services, coal mining and also coal burning derived from an electric-power plant, as well as the population living in the vicinity of such emissions. Such contamination leads to endogenous overgeneration of reactive oxygen species (ROS) in different cells and tissues and therefore to a systemic oxidative stress (OS). Enzymatic and non-enzymatic OS biomarkers were measured in the blood of workers directly and indirectly (near the emissions) exposed and also in subjects indirectly exposed living in the vicinities of these PM emissions, before and after a six months antioxidant intervention of a daily oral supplementation of vitamins C (500 mg) and E (400 mg). Compared to baseline values, the antioxidant intervention after 6 months was able to confer a consistent and protective effect against the systemic OS irrespective of the PM source of the airborne contaminants. The results clearly indicate that supplementation with antioxidant vitamins could be recommended in order to attenuate the deleterious consequences of a systemic OS associated with such PM emissions.

show abstract

Bromo- and bromochloro-polynuclear aromatic hydrocarbons, dioxins and dibenzofurans in municipal incinerator fly ash

Cited by 53 publications

References 34 publications

Occupational airborne contamination in South Brazil: 2. Oxidative stress detected in the blood of workers of incineration of hospital residues

Occupational airborne contamination in South Brazil: 2. Oxidative stress detected in the blood of workers of incineration of hospital residues

The role of bromine in the de novo synthesis in a model fly ash system

Systemic Oxidative Stress Promoted by Emissions of Particulate Matter is Attenuated by Antioxidant Supplementation

Contact Info

Product

Resources

About