Zbyněk Večeřa

TL;DR: In this article, a comparative analysis of carbonaceous compounds in particulate matter presents a number of difficulties related to artefacts during sampling and to the distinction between organic (OC) and elemental carbon (EC) during analysis.

TL;DR: In this paper, a flow-injection system for the simultaneous determination of nitrite and nitrate in water is described, which combines online photolytic conversion of nitrate to nitrite, and the chemiluminescent detection of Nitrite.

TL;DR: Even just leaf exposure to CdONPs has the potential to induce changes in plant metabolism, and there were significant changes in the composition of saturated and unsaturated fatty acids in both the roots and leaves of treated plants.

TL;DR: In this paper, two types of artefacts were evaluated at an urban site in Ghent (Belgium) during the summer period: those related to the sampling procedure (high- or low-volume samplers) and the adsorption and/or volatilization of carbonaceous species.

TL;DR: In this article, the concentrations of 16 polycyclic aromatic hydrocarbons (PAHs), 4 hopanes and ααα (20 R )-cholestane in PM1 aerosol samples were measured in two cities of the Czech Republic (Brno and Slapanice) in winter and summer season of 2009 and 2010.