The influence of the composts with the participation of municipal sewage sludge on the available forms of phosphorus in the soil as well as the yield of the seeds of spring rape

Abstract

The influence of the composts with the participation of municipal sewage sludge on the available forms of phosphorus in the soil as well as the yield of the seeds of spring rape The field and laboratory experiment was carried on the brown incomplete soil of the complex of rye good. The obtained results in the yield experiment show that the composts with the participation of municipal sewage sludge increased essentially the yield of the seeds of spring rape in comparison with the control variant. Doubling of the doses of mineral nitric - potassium fertilization against the background of the composts did not have a significant influence on increasing the yield of the seeds of spring rape in comparison with the single doses. The composts with the participation of municipal sewage sludge in the field and laboratory experiment caused a significant increase of the content of the available forms of phosphorus in the soil. As time went by the distribution of the composts in the soil, the content of the available forms of phosphorus increased.

Teeth as an Indicator of the Environmental Exposure of Silesia Province’s Inhabitants in Poland to Metallic Trace Elements

“…Determining the parameters of human exposure to heavy metals in these matrices is relatively simple and rapid. However, a major drawback of this method is the short persistence of metals, particularly lead, in such samples [20][21][22][23]. Pb is mainly deposited in bone, so the use of plasmas to monitor it appears to be inadequate and does not reflect the true level of exposure [22,24].…”

“…However, when it comes to hair and nails, heavy metals are not good biological indicators due to their susceptibility to the influence of external factors such as pollutants from dust deposited on the hair, hair care products, and styling products. The half-life of heavy metals in hair and nails ranges from a few months to several years depending on the metal analyzed [9,21,22,24,26]. Heavy metals have a significant affinity for bone and dental structures.…”