Interpreting, correlating, and predicting the multimedia concentrations of PCDD/Fs in the United Kingdom

Article Abstract:

This U.K. study examined polychlorinated dioxin and furans levels in fresh water, soil, river sediment, plants, sludge, and human adipose tissue to determine levels of human exposure. Accumulating such data is complicated by environmental factors. Adjusting the means of analysis based on the source of the samplings (air, water, and sediment) became a key element of the research. The means of media-specific adjustment factors is shown to be an effective prediction tool. The resulting methodology showed an unexpectedly high level of dioxin and furans in the environment.

United Kingdom, Research, Soil pollution, Water pollution, Air pollution, Analysis of variance, Furans

---

Persistence of PCDD/Fs in a sludge-amended soil

Article Abstract:

An analysis of sludge-derived polychlorinated dibenzo-p-dioxins and furans (PCDD/Fs) based on their content shows that PCDD/F persistence in soils has gradually decreased from 1972 to 1990. Measurement of the contamination profile of PCDD/Fs in soils show a 50% decrease in the concentration of the congeners over the period of 18 years. This decrease is attributed in large part to the reduction in half-lives of PCDD/Fs in soils due to physical loss or the decrease in extractability.

Analysis, Organic compounds, Sludge

---

Role of sulfur in reducing PCDD and PCDF formation

Article Abstract:

The combustion of wastes is the major source of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs), major environmental pollutants that pose serious harm to human and animal health. It has been suggested that sulfur (S) inhibits PCDD and PCDF formation. Experiments testing this hypothesis show that the presence of S can be effective in reducing emissions from combustion sources by preventing the formation of PCDD, PCDF, and their analogs.

Sulfur, Incineration

Similar abstracts:

• Abstracts: Utility deregulation, air deposition may make NOx the acid rain of the 1990s. Are regulators relying on inaccurate industrial air emission inventories?
• Abstracts: Hydration-facilitated sorption of specifically interacting organic compounds by model soil organic matter. Competitive sorption between atrazine and other organic compounds in soils and model sorbents

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