Application of diffusive samplers for ambient ozone measurements

Diffuse sampling is based on free flow of analyte molecules from the sampled medium to a collecting medium. This method is used for quantifying ambient, gaseous air pollutant concentrations. Diffuse monitoring offers a geographical concentration distribution. It is available choice for measuring ambient ozone. Today, tropospheric ozone belongs to the most problematic pollutants in the atmosphere. And thatś why it is useful to monitor spatial and temporal variations in the amount of this pollutant. The offer of diffuse samplers for monitoring ambient ozone concentration is wide enough - the most widely used samplers are for example Gradko, Ogawa, Radiello or IVL

Assessment of sediments from the Vuznice resevoir (PLA Krivoklatsko) for agricultural purposes

The Vůznice Reservoir is located in the Protected Landscape Area Křivoklátsko. The thesis took advantage of the special possibilities to sample bottom sediment from the drained reservoir's space. The Vůznice Reservoir is discharged only exceptionally. Concentrations of heavy metals were evaluated in the sediments' samples. Given values were compared with pollution limits under current legislation of the Czech Republic for possible application of sediments on agricultural land resources. In addition, the values were compared with the U.S. EPA limits, particularly with PEC and TEC. Selected heavy metals meet the required limits of Decree No. 257/2009 Coll. placed on the sediment. Key words: toxic metals, Vuznice, bottom sediment, application of dredged sediments on lan