Polychlorinated dibenzo-p-dioxins/furans and polychlorinated biphenyls in sediments and aquatic organisms from the Taihu Lake, China

Zhang, Qinghua; Jiang, Guibin

doi:10.1016/j.chemosphere.2005.02.099

Cited by 69 publications

(50 citation statements)

References 10 publications

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“…The profile of PCDD/Fs in Haihe River, Dagu Drainage River and two other rivers in Tianjin is in accord with the profiles reported in other sediments of rivers (Eljarrat et al, 2005;Hu et al, 2005;Zhang and Jiang, 2005). Percentage contributions of OCDD, HpCDD and OCDF to the total-PCDD/Fs were shown in Fig.…”

Section: Profile and Possible Sources Of Pcdd/fssupporting

confidence: 85%

Occurrence of polychlorinated dibenzo-p-dioxins, dibenzofurans and biphenyls pollution in sediments from the Haihe River and Dagu Drainage River in Tianjin City, China

et al. 2007

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The pollution status of polychlorinated dibenzo-p-dioxins, dibenzofurans (PCDD/Fs) and polychlorinated biphenyls (PCBs) in the sediments of Haihe River, which is the most polluted among the seven largest basins in China, Dagu Drainage River flowing through a chemical industry zone, and two other rivers flowing into Bohai Sea in Tianjin City, China were investigated. The concentrations of PCDD/Fs and PCBs in the sediments from the mainstream of Haihe River were 1.3-26 pg I-TEQ g À1 dry weight (dw) and 0.07-0.54 pg TEQ g À1 dw, respectively. Heavy PCDD/Fs and PCBs pollution, with 1264 pg I-TEQ g À1 dw and 21 pg TEQ g À1 dw, was found in sediment from Dagu Drainage River. The congener profiles of PCDD/Fs indicated that the principal contamination source was the production of pentachlorophenol (PCP) or PCP-Na in this area. The correlation between PCDD/Fs or PCBs and total organic matter (TOM) showed that PCDD/Fs or PCBs were independent on TOM.

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Section: Profile and Possible Sources Of Pcdd/fssupporting

confidence: 85%

Occurrence of polychlorinated dibenzo-p-dioxins, dibenzofurans and biphenyls pollution in sediments from the Haihe River and Dagu Drainage River in Tianjin City, China

et al. 2007

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“…In addition, Taihu Lake serves as a site for aquaculture and as a shipping route [30]. In recent years, Taihu Lake has been subjected to increasing and more serious contamination due to rapid urbanization and industrial and agricultural development.…”

Section: Introductionmentioning

confidence: 99%

“…Extensive studies have disclosed a serious deterioration of water quality due to pollutants derived from household, industrial, and agricultural discharge, and several kinds of persistent organic pollutants (POPs) have been detected in air, water, sediment, and even biota in the region. Among the POPs detected are polycyclic aromatic hydrocarbons (PAHs), organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), PBDEs, 1,2-bis(2,4,6-tribromophenoxy) ethane, decabromodiphenylethane, dechlorane plus (DP), and polychlorinated dibenzo-p-dioxins/furans (PCDD/Fs) [30][31][32][33]35]. Until now, there has been no information about the pollution status of OPs in this region.…”

Section: Introductionmentioning

confidence: 99%

Levels and distributions of organophosphate flame retardants and plasticizers in sediment from Taihu Lake, China

Cao

Zeng

Song

et al. 2012

Environmental Toxicology and Chemistry

214

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Abstract-The concentrations and distribution of seven organophosphate flame retardants and plasticizers (OPs) were investigated in 28 sediment samples collected from Taihu Lake. The analytes were ultrasonically extracted, enriched using solid-phase extraction, and determined by gas chromatography-mass spectrometry. The results indicated that the analytes were all detected in the sediments. The total concentrations of seven OPs ranged from 3.38 to 14.25 mg/kg, and tris (2-chloroiso-propyl) phosphate (TCPP), tris (2-chloroethyl) phosphate (TCEP), and tris (2-butoxyethyl) phosphate (TBEP) were the dominant compounds, with concentrations ranging from < limit of quantification to 2.27 mg/kg, 0.62 to 3.17 mg/kg, and 1.03 to 5.00 mg/kg, respectively. The highest concentration of total assessed OPs (14.25 mg/kg) was found at GH-5, with tris (1,3-dichloro-2-propyl) phosphate (TDCPP) as the main component at the sampling site. This result implied that there is an obvious emission source nearby at Suzhou City; in addition, human activities also play an important role in the concentration of OPs in the sediment.

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“…Detailed analytical procedure can be found in our previous studies. 24 An Agilent 6890 gas chromatograph (GC) coupled with a Micromass Autospec Ultima high-resolution mass spectrometer (HRMS) was used for instrumental analysis. The HRMS was operated in the electron impact ionization mode at resolution of R g 10 000.…”

Section: ' Introductionmentioning

confidence: 99%

Reduction of Atmospheric Polychlorinated Dibenzo-p-Dioxins and Dibenzofurans (PCDD/Fs) during the 2008 Beijing Olympic Games

Wang

et al. 2011

Environ. Sci. Technol.

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A total of 120 air samples were collected at three urban and one rural location in Beijing, China in the summers of 2007−2010, and before, during, and after the Beijing 2008 Olympic Games (BOG), in order to assess the effectiveness of long-term and short-term emission-control measures in reducing polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in the atmosphere. During the BOG (August, 2008), the PCDD/Fs concentrations decreased to an average value of 1150 fg m−3 (63 fg I-TEQ m−3), which was reduced by approximately 70% from the average in 2007 and by 29% from that in July 2008, before the Olympic event began. Although 2009−2010 levels of PCDD/Fs were significantly higher than 2008, the overall temporal trend was decreasing for summer months during the sampling campaign period. The apparent half-lives of atmospheric PCDD/Fs were estimated to be 3.2−5.8 years by statistically regressing the logarithm PCDD/Fs concentrations versus the number of years passed since 2006. The air concentrations of total suspended particulates (TSP) during the BOG ranged between 135 and 183 μg m−3, showing a 52% reduction from 2007 and 26% decrease from those prior to the Olympic event. No significant relationships were found between meteorological parameters (temperature, humidity, and wind speed) and PCDD/Fs or TSP during the BOG, whereas the PCDD/Fs concentrations were significantly dependent on the air quality (p < 0.05, positive against TSP and negative against visibility). This work is one of few temporal trend studies of atmospheric PCDD/Fs in mainland China, and provides unique insight into the effects of large-scale control measures in improving air quality and reducing one of the most ubiquitous and toxic organic pollutants in the environment.

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Polychlorinated dibenzo-p-dioxins/furans and polychlorinated biphenyls in sediments and aquatic organisms from the Taihu Lake, China

Cited by 69 publications

References 10 publications

Occurrence of polychlorinated dibenzo-p-dioxins, dibenzofurans and biphenyls pollution in sediments from the Haihe River and Dagu Drainage River in Tianjin City, China

Occurrence of polychlorinated dibenzo-p-dioxins, dibenzofurans and biphenyls pollution in sediments from the Haihe River and Dagu Drainage River in Tianjin City, China

Levels and distributions of organophosphate flame retardants and plasticizers in sediment from Taihu Lake, China

Reduction of Atmospheric Polychlorinated Dibenzo-p-Dioxins and Dibenzofurans (PCDD/Fs) during the 2008 Beijing Olympic Games

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