Spatial distribution of PCDDs, PCDFs and dl-PCBs along the cascade of urban reservoirs

seasonal distribution of pcdds/pcdfs in the small urban reservoirs

man-made reservoirs constructed on running waters, where a decrease in flow velocity and anincrease in flocculent settling occurs, create perfect conditions for the deposition of allohtonic matter andadsorbed pollutants, such as toxic polychlorinated dibenzo-p-dioxins (pcdds) and polychlorinateddibenzofurans (pcdfs). the results obtained from the research on a cascade of five small reservoirs l...

Biodegradation of PCDDs/PCDFs and PCBs

As a consequence of the rapid development of modern society during the 20th century, a significant amount of organic chemicals has been dispersed into the environment. Many of them have been used as pesticides, insecticides, defoliants and industrial chemicals or produced as undesirable industrial by-products. A large amount of them show several metabolic and toxic activities including mutageni...

Levels and sources of PCDDs, PCDFs and dl-PCBs in the water ecosystems of central Poland - a mini review.

Polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) are unwanted by-products in a variety of industrial and thermal processes. They have been present on Earth long before the human era, since they may be also formed as a result of forest fires or volcanic explosions. Polychlorinated biphenyls (PCBs) in turn, have been intentionally produced by humans. Poland was a minor producer...

Polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs) and biphenyls (PCBs)

Human milk as a bioindicator for body burden of PCDDs, PCDFs, organochlorine pesticides, and PCBs.

In the State Laboratory of North Rhine-Westphalia for Food, Pharmaceutical and Environmental Chemistry (Chemisches Landesuntersuchungsamt), more than 600 individual human milk samples have been analyzed for polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs), and more than 1400 individual milk samples have been analyzed for organochlorine pesticides (OCPs) and po...