Trends in spatial and temporal levels of persistent organic pollutants in Lake Erie sediments

Marvin, Christopher H.; Painter, S. L.; Charlton, Murray N.; Fox, Michael E.; Thiessen, Paul A.

doi:10.1016/s0045-6535(03)00660-x

Cited by 56 publications

(28 citation statements)

References 9 publications

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“…The results indicate that concentrations of PCBs in most areas of China increased during the 1980s and 1990s, with the exception of Yangtze River and Dalian Bay. This variation in environmental PCB levels is in contrast to results presented in most foreign studies where concentrations of PCBs have been decreasing since the 1970s (Giesy and Snyder, 1998;Muir and Norstrom, 2000;Marvin et al, 2004).…”

Section: Temporal Pcb Pollution In Chinacontrasting

confidence: 85%

A spatial temporal assessment of pollution from PCBs in China

et al. 2005

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This research represents an assessment of the current state of pollution from polychlorinated biphenyls (PCBs) in China. Various environmental media including sediment, water, organism and soil were analyzed and the spatial character of PCB pollution in each environmental medium was determined. On a national basis, PCB levels in all environmental media were relatively low, with little evidence of major contamination in ChinaÕs main regions and rivers. However, there were some locations with high PCB concentrations. Sediments in Pearl River (83.1 ng/g) and its estuary (58.9 ng/g), Dalian Bay (58.1 ng/g) and Songhua River (36.8 ng/g) had relatively high level of PCBs. There were also some areas, which were mainly the industrial pollution sites or PCB equipment storage locations, remained seriously polluted with the highest PCB residue level of 150 000 ng/g. In addition, Minjiang Estuary (985.2 ng/g) and Taihu Lake (631 ng/g) had high levels of water pollution, while Pearl Estuary (635.7 ng/g) and Jiaozhou Bay (273.3 ng/g) had relatively high PCB levels in organisms. PCB pollution in soil was limited to a few special pollution areas with the highest PCB level of 4.5448 · 10 6 ng/g. Point source pollution was the common pattern of contamination, influenced primarily by local geographic, economic and historical factors. Analysis of PCB concentrations from the 1980s to 1990s shows an increasing trend, possibly due to the improper disposal of and leakage from PCB containers, chemical transfers, and the general rise of industrial pollution.

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Section: Temporal Pcb Pollution In Chinacontrasting

confidence: 85%

A spatial temporal assessment of pollution from PCBs in China

et al. 2005

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“…PCB pollution in surface sediment has been well documented around the world in recent years ( Table 2). The results demonstrated that the total concentrations of PCBs in the East Lake were lower than those in the sediments of Houston Ship Channel (Howell et al 2008), Lake Eire (Marvin et al 2004) and Haihe River (Zhao et al 2010). Concentrations of PCBs in the East Lake were comparable to the data for locations such as Wuhan section of the Yangtze River in China (Yang et al 2009).…”

Section: Resultssupporting

confidence: 50%

Concentrations and risk assessment of polychlorinated biphenyls and polybrominated diphenyl ethers in surface sediments from the East Lake, China

et al. 2014

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The concentrations of polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) in surface sediment samples collected from the East Lake, China in winter 2012 and summer 2013 were analyzed in this study. The total PCB and PBDE concentrations ranged from not detected to 107.1 ng g(-1) dw and from 9.7 to 151.3 ng g(-1) dw, respectively. PCB-28, 101 and 180 were dominant congeners in both winter and summer. BDE-28 (44 %) was the dominant congener in winter and summer, followed by BDE-99 (28 %) and BDE-47 (26 %). The concentrations of PCBs in the sediment samples collected in summer were higher than those in winter, while the concentrations of PBDEs did not show much seasonal variations. Source analysis showed that the PCBs probably originated from urban runoff, industrial pollution and atmospheric deposition, and the PBDEs probably originated from historical usage of penta-BDE mixtures. Potential eco-toxicological risks caused by PCBs were found in about 5 % of the sampling sites; PBDEs had moderate eco-toxicological risk in 80 % sampling sites in the East Lake, China.

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“…RPCBs ranged from 24 to 77 ng g À1 , with maxima (64-73 ng g À1 ) found in sediments older than 1950s. The most recent RPCB concentrations are comparable to those found in lacustrine sediments from urban lakes in Wuhan, China (0.90-46.14 ng g À1 ; Yang et al, 2009), lake Erie, Canada (43 ng g À1 ; Marvin et al, 2004), Yukon river drainage basin (8-33 ng g À1 ; Rawn et al, 2001) and Rice Creek-lake Ontario (24.5 ng g À1 ; Chiarenzelli et al, 2001). Reports on RPCB sediment concentrations in Mexico are very scarce so far, and levels found in surface coastal sediments are rather low: <10 ng g À1 for 42 surface samples from San Quintín Bay, Baja California (Gutiérrez-Galindo et al, 1996); and 1.2-9.3 ng g À1 in surface sediments of Chetumal Bay, Quintana Roo (Noreñ a- Barroso et al, 1998).…”

Section: Pcb Concentrations Sources and Trendssupporting

confidence: 58%

210Pb-derived history of PAH and PCB accumulation in sediments of a tropical inner lagoon (Las Matas, Gulf of Mexico) near a major oil refinery

Ruiz-Fernández

Sprovieri

Piazza

et al. 2012

Geochimica et Cosmochimica Acta

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Concentrations of polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) were measured in a sediment core from the tropical freshwater inner lagoon of Las Matas, near the petroleum industrial area of Minatitlán-Coatzacoalcos, in the Gulf of Mexico. A 210 Pb-derived chronology was used to reconstruct the historical PAH and PCB accumulation in the site during one century . Both geochemical and sedimentological data indicated that a major change occurred in 1947 ± 4, including a shift to coarser sediments and a significant decrease of Al, Li, Fe, organic C and total N contents. This was likely due to the changes in hydrology caused by the confinement of Las Matas Lagoon due to the construction of the Trans-Isthmus road in 1946. PAHs in these samples show relatively low concentrations (259-1176 ng g À1 ), and the congener relative abundances indicate the influence of pyrogenic (petroleum combustion) sources. Total PCB concentrations in the sediments ranged from 24 to 77 ng g À1 , and are composed by low chlorinated PCBs, with 3-and 4-CB as the prevalent species (51-65% and 29-40%, respectively). PAHs and PCBs were detected at depths corresponding to the early 1900s, when Minatitlán refinery started operations, although their time evolution appears to be influenced by different accumulation processes. The PCB background is most likely produced by the combustion of natural organic matter, and an industrial contribution can be recognized when normalizing with OC contents. We concluded that atmospheric deposition is the most significant source of PAHs and PCBs for this water body. This study also provided evidence of the alteration of the wetlands surrounding this industrial area due to urbanization; the fragmentation and alteration of Las Matas Lagoon hydrology contributes to the gradual loss of the wetlands in the zone.

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Trends in spatial and temporal levels of persistent organic pollutants in Lake Erie sediments

Cited by 56 publications

References 9 publications

A spatial temporal assessment of pollution from PCBs in China

A spatial temporal assessment of pollution from PCBs in China

Concentrations and risk assessment of polychlorinated biphenyls and polybrominated diphenyl ethers in surface sediments from the East Lake, China

210Pb-derived history of PAH and PCB accumulation in sediments of a tropical inner lagoon (Las Matas, Gulf of Mexico) near a major oil refinery

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