Surface exchange and transport processes governing atmospheric PCB levels over Lake Superior

Article Abstract:

Atmospheric polychlorinated biphenyl concentrations measured at Eagle Harbor, MI, from 1990-1994 were analyzed to determine the importance of regional air/water exchange flux as a determinant of PCB concentration over Lake Superior. Results derived from congener-specific regression analyses of log concentration against reciprocal temperature are highly dependent on the time of the year, during periods of onshore flow. When the lake is colder than the overlying air, 48% to 63% of the variance in log C is explained by regressions for onshore flow.

Lake Superior

---

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

Article Abstract:

Polychlorinated dioxins and furans have been established as major toxicological threats to the environment. Polychrorinated biphenyls (PCBs) and naphthalenes (PCNs) exhibit similar toxic effects although environmental studies on PCNs are lacking. The Swedish Dioxin Survey, 1988 established PCNs and PCBs widespread in the local aquatic environment. Birds preying on Baltic Sea fish suffer heavy contamination compared with sea mammals that do not appear to concentrate these compounds.

Health aspects, Sweden, Naphthalene

---

Polychlorinated biphenyls and nonylphenols in the Sea of Japan

Article Abstract:

Deep water and shallow coastal water vertical profile studies were undertaken in areas in the Sea of Japan to determine the extent of marine pollution and study vertical water movement. Monitored in the experiments were the concentrations of polychlorinated biphenyls and nonylphenols. A characterization of the vertical distribution of the chlorinated biphenyls showed a turnover mechanisms which allows the dense surface waters to sink to the bottom during the strong winter months.

Research and Development in the Physical, Engineering, and Life Sciences, Ecological Sciences, Research, Environmental sciences, Aquatic ecology, Marine ecology

Similar abstracts:

• Abstracts: Technology transfer and implementation processes in developing countries. The TRIPS Agreement: benefits and costs for developing countries
• Abstracts: Faster than light? The single-atom laser: a new type of laser that harnesses the energy of individual atoms reveals how light interacts with matter
• Abstracts: Issues in thermal contact and phase change in porosity prediction. Flow effects on the solidification environment in a GTA spot weld
• Abstracts: Surface complexation of aluminium on isolated fish gill cells. Oil field hydrogen sulfide in Texas: emission estimates and fate
• Abstracts: Degradation of nonylphenol ethoxylates during the composting of sludges from wool scour effluents. Irrigation with sewage effluents: the Israeli experience

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.