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1

Secondary effects and pollutants of the environment. Part 1

100%
Namiesnik J., Gorecki T., Wardencki W., Zygmunt B., Torres L.
Polish Journal of Environmental Studies
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1992
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tom 01
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nr 3
In this review the most well-known examples of secondary effects and pollutants which occur in the particular elements of the environment (atmosphere, hydrosphere, soil and food products) are described. Very often pollution of the environment is characterized only by quantities of primary pollutants emitted to the particular elements of the environment. However, it is much more difficult to find any information on certain secondary effects and pollutants which can have a considerably higher influence on environmental degradation than the respective primary pollutants. This does not concern such well-known phenomena as acid rains, the greenhouse effect, depletion of the ozone layer in the stratosphere and smog. This paper also presents some less well-known secondary effects and pollutants such as sick building syndrome, dioxins formation during waste incineration, secondary pollution of water during water treatment, eutrophication of waters, food contamination during processing, and occurrence of PCB's in the environment.
2

Air-water interface in an estuarine lake: chlorophyll and nutrient enrichment

84%
Antonowicz J. P.
Polish Journal of Ecology
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2018
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tom 66
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nr 3
The surface water microlayer (SML) is a thin layer found at the interface of the hydrosphere and the atmosphere. It is capable of accumulating chemical substances and microorganisms at a rate as high as 100-fold greater than that observed in the subsurface water. The rate of accumulation of biogens and chlorophyll a in SML of an estuary, where marine and fresh waters mix, varies considerably and it depends on the degree mixing of these waters, which is manifested in the varying values of the enrichment factor (EF, calculated as the ratio of nutrients concentration in SML versus subsurface water). The influence of the Baltic Sea marine water and the freshwater Łeba River inflows on the estuarine Lake Łebsko (Poland) was examined. Nine sampling sites were located in the estuary. Water samples were collected from two layers: the surface microlayer (thickness 242 µm ± 40) and the subsurface water (15 cm depth). The capacity of the SML to enrich the water in nutrients and chlorophyll differed among various parts of the estuary, as well as between seawater and river waters. Statistically significant higher EF were found in the marine waters than in river waters for the nitrogen and phosphorus compounds as well as chlorophyll. There were also differences in EF between marine and lake waters. The highest EF were also recorded for organic forms of nitrogen and phosphorus in marine water. Most probably, marine flux into the estuarine Lake Łebsko, resulted in the increased EF for these investigated components.
3
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Seasonal changes in the accumulation of nutrients in the hydrosphere-atmosphere interface of urban ponds (Slupsk, northern Poland)

84%
Antonowicz J. P., Wolska M., Libera A.
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
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2016
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tom 20
Seasonal changes were investigated in concentrations of biogenic substances in the surface microlayer and subsurface water in ponds in the city of Słupsk (Northern Poland). Water samples from the surface microlayer were collected using the Garrett screen. Those water samples were analysed to determine concentrations of nitrogen and phosphorus compounds. It was found that biogenic substances are accumulated in the surface microlayer to a greater extent than in the subsurface water layer. This accumulation is subjected to seasonal changes. The source of the analysed nitrogen and phosphorus compounds in the surface microlayer was connected with their concentration in subsurface water.
4

The determination of mercury in sea waters and Baltic sediments by cold vapour AAS

84%
Brugmann L.
Oceanologia
|
1981
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tom 13
5

Main features of global climate models and the impact of predicted climate changes for agriculture and forestry

67%
Jakubiak B.
Geographia Polonica
|
1999
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tom 72
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nr 2
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