New Year's Eve fireworks represent one of the most unusual atmospheric pollution events in course a year. A majority particles aerosolized by burning consist metals and their compounds used firework displays. In this study, ambient particulate matter was sampled using 14 stage cascade impactor two European cities during turn years 2016/17 2017/18. Concentrations 33 elements were determined inductively coupled plasma mass spectrometry. To assess impact on air quality, chemically resolved size...

The article provides information about a new device, AlgaTox developed in the R&D project sponsored by Technology Agency (n.TA02030179) and patented Czech Republic (CZ 305687). Its functionality is based on use of biosensor, its main advantage fast response rate. toxicity detection achieved through precise measurement green algae oxygen production dynamics after their exposure to light wavelength 680 nm. Clark sensor with resolution 0.05% equilibrium concentrations stability at constant...

Abstract Toxicity assessment of K 2 Cr O 7 , ZnCl and NiCl .6H focusing on the green unicellular alga Desmodesmus subspicatus showed that Ni was most toxic (EC 50 = 0.121 mg L −1 ), followed by 0.357 ) Zn 0.968 ). The exposed to solutions individual metals their mixtures (Zn + Ni, Cr). After 48, 72 96 h exposure, accumulation Zn, in algal cells assessed. Moreover, change toxicity metals, concentration selected biogenic elements (Ca, Na, Mg, S, K, P, Mn) rate metal removal from were also...

This paper represents the main results of work package 5 SPENS project (Sustainable Pavements for European New Member States) that was focused on assessment impact roads environment and where Faculty Civil Engineering University Zilina most active closely cooperated with CDV.Collaborative international particulate matter (PM) production due to mechanical abrasion road pavements. PM (and noise emission) captured next different pavement types (stone mastic asphalt concrete) by middle volume...

Extensive information is available on total arsenic in particulate matter (PM), but little known about the relative contribution of each individual species. Recent studies often focus inorganic as arsenite and arsenate, neglecting organoarsenicals, i.e., methylarsine, dimethylarsine, trimethylarsine or corresponding oxidized forms methylarsonate, dimethylarsinate, oxide, although they were already first detected PM mid-1970s. This work presents results from more than 300 daily PM10 further...

A total of 152 aerosol and spider web samples were collected: 96 spider’s webs in karst areas 4 European countries (Czech Republic, France, Italy, Slovakia), specifically from the surface environment (n = 44), photic zones caves 26), inside (aphotic zones) 56 Particulate Matter (PM) Sloupsko-Sosuvsky Cave System (speleotherapy facility; n 21) collected nearby city Brno 35) Czech Republic. Nontuberculous mycobacteria (NTM) isolated 13 (13.5%) webs: 5 isolates saprophytic NTM (Mycobacterium...

The dispersion of particulate matter emitted by road transport to the vicinity roads is predominantly influenced character air velocity field. flow depends on factors such as speed and direction blowing wind, movement cars, geometries buildings around a road. Numerical modeling based control volume method was used in this study describe relevant processes closely. Detailed fields were identified straight surrounded various patterns built-up urban land. evaluation results generalized...

Air pollution by particulate matter (PM) in cities is an ongoing problem with increasing severity. The biggest PM contributors are traffic and domestic fire burning. With the shift towards electromobility use of low-emission fuels, attention should be shifted to less mentioned sources pollution. Such include wind-induced resuspension. This study focuses on determining threshold wind speed causing resuspension (TWSR) aerodynamic diameter smaller than 10 µm. A methodology introduced that...

Particulate matter (PM) diameter and shape are the most discussed physical properties considering behaviour characterisation, source identification, possible effects on human health. Some groups of particles not only have a typical chemical composition but also specific reflecting method their formation, so it is to deduce source. A scanning electron microscope VEGA TS 5136 LSU (Tescan, s.r.o., Czech Republic) was used for PM imaging. air samples were captured Millipore special filters made...

Evaluation of the impact transport on surrounding environment requires an ecosystem approach: to analyze components that provide information about distribution concentrations monitored contaminants and allow estimate dynamics movement these substances in environment. Trees are used for biomonitoring wide range contaminants, coming not only from air pollution industry or but also winter chemical road maintenance. The research paper presents determination sodium chloride ions content...

Though botanical gardens are an important and widely visited component of urban green spaces (UGS) worldwide, their pollution is rarely studied. The aim this study was to assess garden soil contamination ecotoxicity evaluate whether more contaminated than parks. Soil assessments showed serious with Cd, Pb Zn, emitted predominantly by traffic, agrochemicals past construction demolition waste. discovery hazardous historical ecological burden in the UGS calls for necessity detailed surveys such...

The increasing amount of gases and solid pollutants emitted into the atmosphere have a considerable impact on human health environmental ecosystems. Specifically, long exposure to high concentrations may lead shortening life by several years due cardiovascular respiratory diseases, contributes increased risk death. Recent studies also indicate cancer occurrences related some pollutants, namely PM, that are hazardous not only their physical parameters, but mainly content many dangerous...

Parks embody an important element of urban infrastructure and a basic type public space that shapes the overall character city. They form counterweight to built-up areas spaces with paved surfaces. In this context, parks compensate for lack natural, open landscapes in cities thus have fundamental impact on quality life their inhabitants. For reason, it is consider environment parks, air particular. Concentrations gaseous pollutants, namely, nitric oxide (NO), nitrogen dioxide (NO2), ozone...

Construction of motorways and road traffic bring a new line element into the landscape, which fundamentally influences local hydrological regime water quality. Impermeable surfaces are introduced affecting natural infiltration in environment. The aim present research was to assess long-term historical development changes landscape retention potential due construction D1 motorway Jihlava region also evaluate impact winter maintenance on quality surface waters soils. During reference period,...

Transport has become an important factor in the development of society, both a positive (transport people, raw materials, products, information) and negative sense (traffic accidents, emissions). The rapid growth transport capacity quantity passenger freight vehicles is reflected increasing environmental burden. Hence compounds emitted from all modes occur components. These often have adverse effects on ecosystems, animals, plants, human health, thus it to observe their occurrence environment.

Materials used for the construction of roads can represent one sources environmental pollution. In this respect, especially water migrating in road body be contaminated by pollutants released from these materials. This paper presents results a study focused on leaching compounds materials construction. At localities with older pavement surfaces, concentrations polyaromatic hydrocarbons (PAHs) detected samples different layers were highest layer subjacent to asphalt surface and decreased...

Measurement of Persistent Organic Pollutants (POPs) was performed in order to complement the set known emission factors. Methodology for gasoline engines factors determination that uses POPs concentrations measured exhaust gasses, limited pollutants (carbon monoxide CO, nitrogen oxides NOx and hydrocarbons HC) other compounds dioxide CO2) elaborated. Empirical value gasses production announced by specialists TUV SUD used diesel. Emission four vehicle-fuel systems were determined particularly...