Emission of nanoparticles in the nanotextile industry

Nechvátal, Marek; Bátrlová, Kateřina; Kubátová, Hana; Klouda, Karel; Roupcová, Petra

We encounter smoke quite regularly in our lives. Smoke consists of gaseous, liquid and solid components that are produced by the combustion/oxidation of fuel. The chemical composition of smoke depends not only on the fuel used but also on a number of other parameters (operation, technology, atmospheric effects). The chemical composition of smoke is therefore variable and cannot be easily characterised. The combustion of wood releases into the atmosphere not only unconsumed air but also wood particles, CO2, methane, volatile organic compounds, trace elements and ultrafine particles. Measurements are published on this topic for a given type of combustion technology with a specific fuel type. The procedure for measuring the concentration of nanoparticles (10-700 nm) in wood smoke and their mean diameters can be called "field". The aim of these measurements in real situations was to find and describe sources of elevated nanoparticle concentrations. Substantial quantitative information on the occurrence of nanoparticles in wood combustion in different types of wood burners was obtained in the field under real climatic conditions, typical of the winter season in Central Europe, when most domestic heating takes place. Thus, wood burning in households in predominantly agricultural areas of the Czech Republic can be considered as a major source of outdoor air pollution, but can also have a significant impact on the deterioration of indoor air quality. At the same time, it can be assumed that the negative impact of nanoparticles on human health in areas polluted by wood smoke is weaker than the impact elsewhere - in industrial, more polluted areas.

host :: přihlásit Digitální repozitář
		Hledej		Nový záznam		Nápověda		O repozitáři