Levels and possible sources of PCDD/PCDF in sediment and pike samples from Swedish lakes and rivers. (Part one)

Kjeller, Lars-Owe; Kulp, S.E.; Bergek, Sture; Boström, Mikael; Bergquist, Paul A.; Rappe, Christoffer; Jonsson, Björn; Jansson, Bo; Olsson, Mats

doi:10.1016/0045-6535(90)90302-a

Cited by 19 publications

(2 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In several fish species (perch, pike, sculpin, and flounder) I-TEQ was 2−9 times higher than in fish caught from the control area (Table ). Elevated concentrations were mainly due to the high amounts of hexa- to octachlorodibenzofurans, which usually are not predominant in fish samples regardless of the congener pattern in sediment ( , ). In the average Sköldvik fish PCDFs dominated by 77% of the total PCDD/Fs, whereas in the control fish the percentage of PCDFs was 53.…”

Section: Resultsmentioning

confidence: 99%

Assessment of Levels, Distribution, and Risks of Polychlorinated Dibenzo-p-dioxins and Dibenzofurans in the Vicinity of a Vinyl Chloride Monomer Production Plant

Isosaari

Kohonen

Kiviranta

et al. 2000

Environ. Sci. Technol.

View full text Add to dashboard Cite

Levels of polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs), and biphenyls (PCBs) were analyzed from environmental and human samples to assess contaminant distribution and risks associated with vinyl chloride monomer (VCM) production. Extremely high concentration of PCDD/Fs, 26 µg/g dry weight, was detected in the waste sludge. As a result of improper wastewater treatment practices in the 1970s, PCDD/Fs (11.4 kg, 32.0 g of I-TEQ) leached into the Gulf of Finland in the Baltic Sea. Despite high concentrations near the plant, the polluted area was restricted (about 26 km 2 ), and VCM production could not be a significant contributor to the PCDD/F load of the sea. Frequent consumption of local fish was considered to be the most probable source of human exposure. However, serum samples taken from local residents and former workers did not indicate exposure to elevated levels of total PCDD/Fs. Octachlorinated furan was the main congener (73% of PCDD/F sum) in the waste sludge, and it also dominated in marine sediments. Contaminated sediments also had a characteristic PCB composition, containing exceptionally high proportions of IUPAC 206 and 209 congeners.

show abstract

Section: Resultsmentioning

confidence: 99%

Assessment of Levels, Distribution, and Risks of Polychlorinated Dibenzo-p-dioxins and Dibenzofurans in the Vicinity of a Vinyl Chloride Monomer Production Plant

Isosaari

Kohonen

Kiviranta

et al. 2000

Environ. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…The sampling sites in Lake Vanern (Bi2-6,Sel3,14) and the River Gota Alv (Se9-12) are of specific interest since two chloralkali plants are located beside the water system, one at the northern shore of Lake Vanern and the other at the lower half of River Gota Alv. These plants have produced chlorine gas and chlorinated products since 1917 and 1924, respectively, and have been found to be important sources of PCDD/F emitted into Lake Vanern and River Gota Alv (18). In addition to these sources, the combined water system is affected by waste water from several pulp and paper mills, sawmills, and urban waste water.…”

Section: Methodsmentioning

confidence: 99%

Polychlorinated biphenyls and polychlorinated naphthalenes in Swedish sediment and biota: levels, patterns, and time trends

Jaernberg¹,

Asplund²,

Wit³

et al. 1993

Environ. Sci. Technol.

112

View full text Add to dashboard Cite

Levels of non-ortho-polychlorinated biphenyls (PCB), some mono-ortho-PCB, and resolved peaks of tetrato heptachloronaphthalenes are reported in biological and sediment samples from the Swedish environment. The results show that levels of individual PCB congeners, and especially PCB 126, may pose a greater threat to the environment than the 2,3,7,8-chlorinated dioxins and furans when expressed as 2,3,7,8-tetrachlorodibenzodioxin (TCDD) toxic equivalents. Polychlorinated naphthalenes are as widespread pollutants as PCB, and at some locations the pollution situation indicates a specific source, leading to a bioaccumulating hexachloronaphthalene contributing considerably to the total TCDD-like toxicity. A time trend study of guillemot eggs from the Baltic Proper seems to indicate that levels of non-ortho-PCB and -PCN have decreased since the 1970s.

show abstract

Do aquatic effects or human health end points govern the development of sediment‐quality criteria for nonionic organic chemicals?

Parkerton

Connolly

Thomann

et al. 1993

Enviro Toxic and Chemistry

View full text Add to dashboard Cite

The equilibrium partitioning theory may be used to describe the partitioning of nonionic organic chemicals between water, sediment, and aquatic biota. This paradigm was employed to compare the relative magnitudes of organic carbon‐normalized sediment‐quality criteria that are intended to protect either benthic organisms from the direct toxic effects of sediment‐associated chemicals or humans from the indirect health effects posed by the ingestion of contaminated aquatic animals. Comparison of calculated sediment‐quality criteria for a variety of hydrophobic chemicals suggests that human health‐based end points often result in more restrictive criteria than aquatic effects‐based values. Review of published field data indicates that the equilibrium partitioning paradigm may, depending on contaminant class, either over‐ or underestimate the extent to which sediment associated contaminations are bioaccumulated. Despite the limitations of adopting this simple theory for criteria development, calculations reveal that regulatory decisions involving sediments contaminated with such chemicals may be dictated by human health concerns if current risk assessment methodologies are applied.

show abstract

Levels and possible sources of PCDD/PCDF in sediment and pike samples from Swedish lakes and rivers. (Part one)

Cited by 19 publications

References 6 publications

Assessment of Levels, Distribution, and Risks of Polychlorinated Dibenzo-p-dioxins and Dibenzofurans in the Vicinity of a Vinyl Chloride Monomer Production Plant

Assessment of Levels, Distribution, and Risks of Polychlorinated Dibenzo-p-dioxins and Dibenzofurans in the Vicinity of a Vinyl Chloride Monomer Production Plant

Polychlorinated biphenyls and polychlorinated naphthalenes in Swedish sediment and biota: levels, patterns, and time trends

Do aquatic effects or human health end points govern the development of sediment‐quality criteria for nonionic organic chemicals?

Contact Info

Product

Resources

About