Evaluation and Interconversion of Various Indicator PCB Schemes for ∑PCB and Dioxin-Like PCB Toxic Equivalent Levels in Fish

2014 ◽  
Vol 49 (1) ◽  
pp. 123-131 ◽  
Author(s):  
Nilima Gandhi ◽  
Satyendra P. Bhavsar ◽  
Eric J. Reiner ◽  
Tony Chen ◽  
Dave Morse ◽  
...  
Keyword(s):  
Toxic Equivalent ◽  
Dioxin Like Pcb

scholarly journals Influence of Selected Coagulants of Indicator and Dioxin-Like PCB Removal from Drinking Water

2017 ◽  
Vol 24 (1) ◽  
pp. 41-51
Author(s):  
Agata Rosińska
Keyword(s):  
Surface Water ◽  
Total Concentration ◽  
Sulfate Removal ◽  
Aluminium Sulfate ◽  
Water Composition ◽  
Pcb 126 ◽  
Reduction Efficiency ◽  
Water Rate ◽  
Trade Names ◽  
Dioxin Like Pcb

Abstract The aim of the research was to compare selected coagulants efficiency in indicator and chosen dioxin-like PCB removal from surface water. As coagulants, there were used aluminium sulfate and 5 hydrolyzed polyaluminium chlorides, with trade names: PAX-XL1, PAX-XL10, PAX-XL19, PAX-XL60, PAX-XL69. For the research, surface water was used, collected from dam reservoir. The water composition was modified with standard mixtures PCB MIX24 and MIX13, in order to obtain concentration of each congener equal to 300 ng/dm3. The PCB MIX24 mixture was composed of indicator congeners solution: 28, 52, 101, 118, 138, 153, and 180, whereas the MIX13 mixture - solution of three dioxin-like PCB 77, PCB 126, and PCB 169. It was demonstrated that the application of aluminium sulfate allowed for reaching better effects for purifying water of PCB, than with the usage of pre-hydrolyzed salts, polyaluminium chlorides. Out of the studied coagulants, the best effects for indicator PCB removal were obtained with the application of aluminium sulfate, total PCB concentration was decreased by 65%. The highest efficiency for indicator congeners removal (90%) was obtained for PCB 138 and 153. After the application of hydrolyzed polyaluminium chlorides PAX-XL1, PAX-XL10 decrease in higher chlorinated PCB concentration was obtained, in the range of 23 to 74%. Selectivity of chosen PCB congener removal, depending on applied coagulant, was demonstrated; with the usage of aluminium sulfate, removal of heptachlorobiphenyl PCB 180 at the level of 34% was obtained, whereas with the application of PAX-XL1 and PAX-XL10 higher reduction efficiency for this congener was obtained, i.e. 83 and 74% respectively. For dioxin-like PCB, after application of aluminium sulfate, total concentration reduction by 74% was obtained, efficiency of this congeners removal amounted to from 54 (PCB 77) up to 72% (PCB 126), similar results were obtained after the usage of PAX-XL1. The lowest PCB removal from water rate was stated for coagulants PAX-XL60 and PAX-XL69.

Dioxin-like PCB levels in maternal and umbilical cord sera of people living near dump sites in southern Italy: a pilot study of biomonitoring

2015 ◽  
Vol 187 (3) ◽  
Author(s):  
Lucia Grumetto ◽  
Giovanni Ortosecco ◽  
Giacomo Russo ◽  
Maurizio Guida ◽  
Pasquale Ferranti ◽  
...  
Keyword(s):  
Pilot Study ◽  
Umbilical Cord ◽  
Southern Italy ◽  
Dioxin Like Pcb

PCDD/F and dioxin-like PCB profiles in soils amended with sewage sludge, compost, farmyard manure, and mineral fertilizer since 1962

2010 ◽  
Vol 18 (3) ◽  
pp. 461-470 ◽  
Author(s):  
Gunther Umlauf ◽  
Eugen H. Christoph ◽  
Laura Lanzini ◽  
Risto Savolainen ◽  
Helle Skejo ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Farmyard Manure ◽  
Mineral Fertilizer ◽  
Sludge Compost ◽  
Sewage Sludge Compost ◽  
Dioxin Like Pcb

Hepatic 7-ethoxyresorufin-O-deethylase activity, plasma steroid hormone concentrations, and liver bioassay-derived 2,3,7,8-TCDD toxic equivalent concentrations in wild white sucker (Catostomus commersoni) caged in bleached kraft pulp mill effluent

1995 ◽  
Vol 52 (7) ◽  
pp. 1339-1350 ◽  
Author(s):  
M. R. van den Heuvel ◽  
D. G. Dixon ◽  
K. R. Munkittrick ◽  
M. R. Servos ◽  
G. J. Van Der Kraak
Keyword(s):  
Kraft Pulp ◽  
Pulp Mill ◽  
Pulp Mill Effluent ◽  
White Sucker ◽  
Catostomus Commersoni ◽  
Rapid Reduction ◽  
Handling Stress ◽  
Toxic Equivalent ◽  
Kraft Pulp Mill ◽  
Bleached Kraft Pulp

Prespawning male white sucker (Catostomus commersoni), captured near Jackfish Bay, Lake Superior (exposed to bleached kraft pulp mill effluent (BKME)), and Mountain Bay (reference) were caged in the BKME receiving area for 2, 4, and 8 d. Initially, the hepatic 7-ethoxyresorufin-O-deethylase activity was similar in fish from both BKME and reference sites and, upon BKME exposure, increased 20-fold at both sites after 2 d. The H4IIE cell culture bioassay was used to measure 2,3,7,8-tetrachlorodibenzo-p-dioxin toxic equivalent concentration (TEC) in sucker liver extracts. H4IIE bioassay-derived TECs from Jackfish Bay sucker showed no significant treatment differences; combined TECs for all treatments averaged 51.1 pg∙g−1. Mountain Bay sucker liver TECs were initially significantly less (4.64 pg∙g−1) than the Jackfish Bay TECs but did show a significant, fivefold increase when fish were exposed to effluent. Mountain Bay and Jackfish Bay 8-d BKME-exposed fish showed no uptake of TECs calculated from directly measured polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) during this exposure. The results suggest that PCDDs and PCDFs are not responsible for the mixed function oxidase induction observed. Handling stress caused rapid reduction of the plasma steroids testosterone and 11-ketotestosterone, confounding any possible BKME effect.

scholarly journals Prebiotic inulin consumption reduces dioxin-like PCB 126-mediated hepatotoxicity and gut dysbiosis in hyperlipidemic Ldlr deficient mice

2020 ◽  
Vol 261 ◽  
pp. 114183 ◽  
Author(s):  
Jessie B. Hoffman ◽  
Michael C. Petriello ◽  
Andrew J. Morris ◽  
M. Abdul Mottaleb ◽  
Yipeng Sui ◽  
...  
Keyword(s):  
Gut Dysbiosis ◽  
Pcb 126 ◽  
Deficient Mice ◽  
Dioxin Like Pcb
Sign in / Sign up

Export Citation Format

Share Document