Temporal Trends and Spatial Distributions of Brominated Flame Retardants in Archived Fishes from the Great Lakes

Abstract

To explore the geographical distribution and temporal trends of polybrominated diphenyl ethers (PBDEs) in the Great Lakes, lake trout from Lakes Superior, Michigan, Huron, and Ontario and walleye from Lake Erie, collected during the period of 1980−2000, were analyzed. The concentrations of fifteen PBDE congeners and one polybrominated biphenyl (PBB-153) were determined in each fish sample. Lake trout from Lakes Michigan and Ontario had the highest ∑PBDE concentrations during the years investigated. The ∑PBDE concentrations in fishes from the five lakes increased exponentially with time, doubling every 3−4 years. The relative proportion of BDEs-47, -99, and -100 compared to BDEs-153 and -154 increased significantly as a function of time. Over the period 1980−2000, the concentrations of PBB-153, which was a component of a flame retardant banned in the 1970s, generally remained the same in these Great Lakes fishes, except for lake trout from Lake Huron, where the PBB-153 concentrations decreased significantly, but slowly.

Species-Specific Bioaccumulation of Halogenated Organic Pollutants and Their Metabolites in Fish Serum from an E-Waste Site, South China

“…Therefore, the results of the present study were displayed in another way (pg/g lw). As listed in Table 1, levels of PBBs (424-1142 ng/g lw in the present study) were significantly greater than those (\100 ng/g lw for PBB 153) in fish tissues from the Great Lakes (Zhu & Hites 2004). This result once again proved the heavy contamination of HOPs in the e-waste site.…”

PBDE levels in franciscana dolphin (Pontoporia blainvillei): Temporal trend and geographical comparison

“…Kajiwara et al (2004) observed an apparent decrease in concentration in the fur seal from 1994 to 1998 and Sellstrom et al (2003) observed a significant decrease from the mid 1980s to 2001 in guillemot eggs from the Baltic Sea. These recent decreases are likely the result of changes in industrial practices and/or regulations in Europe and Japan that have gradually controlled the use of PBDEs, especially penta-BDE (Zhu and Hotes, 2004).…”

Direct Detection of Pharmaceuticals and Personal Care Products from Aqueous Samples with Thermally-Assisted Desorption Electrospray Ionization Mass Spectrometry

“…While rapid monitoring of aqueous PPCP contaminants is of high interest to environmental protection, the ability to quantify these species is necessary in assessing remediation efforts [4] and establishing geographical and temporal trends of contaminant plumes [39]. Figure 4b shows a calibration curve generated from tap water solutions of citalopram, ranging from the limit of quantitation (LOQ) of 20 ppt to 7500 ppt.…”