Distribution of polychlorinated dibenzo-p-dioxins and dibenzofurans in suspended sediments, dissolved phase and bottom sediment in the Houston Ship Channel

Suarez, Monica P.; Rifai, Hanadi S.; Palachek, Randy; Dean, Kirk E.; Koenig, L.A.

doi:10.1016/j.chemosphere.2005.04.088

Cited by 54 publications

(22 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Compared with previous those of estuary and lake in the world including Humber Estuary, UK; Baltic Sea and Oder Estuary; Casco Bay, Maine, USA; GroBer Arbersee, Germany; Northern Newark Bay, USA, the levels of PCDD/Fs in the sediments of the Changjiang Estuary were quite lower (Table 4) (Vartiainen et al, 1995;Rose and McKay, 1996;Sakurai et al, 1996;Tyler and Millward, 1996;Bruckmeier et al, 1997;Dannenberger et al, 1997;Vartiainen et al, 1997;Wade et al, 1997;Eljarrat et al, 2001;Marvin et al, 2002;Prange et al, 2002;Naito et al, 2003; Wenning et al, 2004;Eljarrat et al, 2005;Hu et al, 2005;Ryoo et al, 2005;Zhang and Jiang, 2005;Suarez et al, 2006). It is also apparent that the concentrations of PCDD/Fs in the study estuary were close to those in the sediments of quite clear areas, such as coastal area of Queensland, Australia, and slightly less than the background of USA or Japan (<3 pg TEQ/g, dw) (Prange et al, 2002;Naito et al, 2003).…”

Section: Pollution Level and Risk Assessment Of Pcdd/fs In The Changjmentioning

confidence: 99%

Polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) in surface sediment and bivalve from the Changjiang Estuary, China

Wen

Yang

et al. 2008

Chin. J. Ocean. Limnol.

View full text Add to dashboard Cite

Surface sediments and bivalves were collected from the Changjiang Estuary in December 2003 and November 2004, respectively. Polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) in these samples were measured with high-resolution chromatography (HRGC)/High Resolution Mass Spectrometer (HRMS). The concentrations of total PCDD/Fs and toxic equivalent (TEQ) were 169.83±119.63 and 0.81±0.36 pg/g dry weight (dw) in sediments, and 580.33±240.17 and 7.24±3.65 pg/g dw in bivalves. The homolog compositions of PCDD/Fs were similar among samples, the most abundant congener was octa-chlorinated dibenzo-p-dioxin (OCDD) and then octa-chlorinated dibenzofuran (OCDF) and 1,2,3,4,6,7,. The herbicide pentachlorophenol (PCP) and sodium pentachlorophenol (Na-PCP) were proved the main source of PCDD/Fs in this area.

show abstract

Section: Pollution Level and Risk Assessment Of Pcdd/fs In The Changjmentioning

confidence: 99%

Polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) in surface sediment and bivalve from the Changjiang Estuary, China

Wen

Yang

et al. 2008

Chin. J. Ocean. Limnol.

View full text Add to dashboard Cite

show abstract

“…In Fig. 2, the reference data are grouped into: (i) contaminated areas (e.g., Miyata et al, 1995;Pieper et al, 1997;Rappe et al, 1997;Bellucci et al, 2000); (ii) coastal areas (e.g., Tyler and Millward, 1996;Dannenberg et al, 1997;Fattore et al, 1997;Koistinen et al, 1997;Wade et al, 1997;Müller et al, 1999Müller et al, , 2002Bellucci et al, 2000;Sakurai et al, 2000;Gaus et al, 2001;Sericano et al, 2001;Dalla Valle et al, 2003;Naito et al, 2003;Koh et al, 2004;Okumura et al, 2004;Eljarrat et al, 2005;Hu et al, 2005;Danis et al, 2006;Suarez et al, 2006); and (iii) internal waters (e.g., Gifford et al 1996;Rose and McKay, 1996;Schramm et al, 1997;Vartiainen et al, 1997;Isosaari et al, 2002;Ryoo et al, 2005). This accounts for generally low inputs, even if it seemed reasonable to expect higher concentrations of TCDD from the use of Agent Orange.…”

Section: Lagoonsmentioning

confidence: 99%

PCDD/Fs in sediments of Central Vietnam coastal lagoons: In search of TCDD

Piazza

Giuliani

Bellucci

et al. 2010

Marine Pollution Bulletin

View full text Add to dashboard Cite

Samples from nine Central Vietnam coastal lagoons, together with three soils and sediments collected in 24 two freshwater reservoirs of the Thua Thien-Hué province, were analysed for polychlorinated dibenzo-p- 25 dioxins and dibenzofurans (PCDD/Fs). Total concentrations are low, from 192 to 2912 pg g1 and depth 26 profiles in Tam Giang-Cau Hai (TG-CH) sediment cores show only minor changes over time in PCDD/F 27 input and composition. Octachloro dibenzo-p-dioxin (OCDD) is the prevailing congener (approximately 28 90%), indicating combustion as the main PCDD/F source to these coastal systems, whereas natural forma- 29 tion might be partly responsible for the presence at depth. 2,3,7,8-Tetrachloro dibenzo-p-dioxin (TCDD), 30 largely sprayed together with Agent Orange over the study areas during the war (1961–1971), is absent 31 or very low. This result supports the hypothesis of strong degradation soon after spraying. Multivariate 32 statistical analyses account for the presence of local, short-range sources as observed in the northern part 33 of the TG-CH lagoon

show abstract

“…The HSC is associated with pulp and paper mills, shipping, and petrochemical refineries, along with other industrial activities that have been identified as potential sources of PCDD/Fs and other organic contaminants. Previous studies focused on the HSC (Correa et al 2006, Correa et al 2004, Dean et al 2009, Howell et al 2011, Raun et al 2005, Rifai et al 2013, Suarez et al 2006a, Suarez et al 2006b, Yeager et al 2007 have all reported the widespread presence of dioxin in its water, sediment, tissue, and air.…”

Section: Study Areamentioning

confidence: 99%

Occurrence and distribution of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) in industrial and domestic sewage sludge

Balasubramani

Rifai

2015

Environ Sci Pollut Res

Self Cite

View full text Add to dashboard Cite

Sewage sludge samples collected from 43 different domestic and industrial wastewater treatment plants and petrochemical industries that discharge to the Houston Ship Channel (HSC) were analyzed for polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs), which are highly toxic and carcinogenic towards humans and animals. The measured total PCDD/F toxic equivalency (TEQ) ranged between 0.73 and 7348.40 pg/g dry weight. The mean TEQ of PCDD/Fs in industrial sludge was approximately 40 times higher than that in sewage sludge. The PCDD homolog concentrations in the industrial samples were higher than those observed at the wastewater treatment plants by a factor of 10, with total heptachlorodibenzodioxin (HpCDD) exhibiting the maximum concentration in most of the samples. Among the PCDF homologs, total heptadichlorodibenzofuran (HpCDF) dominated the total homolog concentration in sludge from the wastewater treatment plants, whereas total tetradichlorodibenzofuran (TeCDF) dominated the industrial sludge samples. Overall, the total PCDD/F TEQ in sludge samples was much higher than that in effluent samples from the same facility. A linear correlation (R (2) = 0.62, p value < 0.068) was found indicating that sludge sampling can be used as a surrogate for effluent concentrations in wastewater treatment plants but not for industrial discharges.

show abstract

Distribution of polychlorinated dibenzo-p-dioxins and dibenzofurans in suspended sediments, dissolved phase and bottom sediment in the Houston Ship Channel

Cited by 54 publications

References 19 publications

Polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) in surface sediment and bivalve from the Changjiang Estuary, China

Polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) in surface sediment and bivalve from the Changjiang Estuary, China

PCDD/Fs in sediments of Central Vietnam coastal lagoons: In search of TCDD

Occurrence and distribution of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) in industrial and domestic sewage sludge

Contact Info

Product

Resources

About