Air sampling
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In this study, ten phthalic acid esters (PAEs) were measured in indoor and outdoor air samples collected from Hanoi metropolitan areas. The target compounds were adsorbed onto a solid adsorbent matrix (C18) with a low-speed pump and then analyzed using gas chromatographytandem mass spectrometry.
11p viambani 18-06-2024 1 0 Download
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In ebook "Nanoparticles in the water cycle: Properties, analysis and environmental relevance" the first section deals with basic aspects of nanoparticles and their function in air, water, soil and water treatment. The second part contains examples for the application of advanced instrumentation for quantification and characterisation of nanoparticles with special respect to aqueous samples.
243p giangdongdinh 28-05-2024 1 1 Download
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This study aims at determining the mass concentrations of PM and health risks on pollution event days (episodes) in Ha Noi. Semi-daily samples (daytime and night-time) of PM2.5 and PM0.1 were collected at Hanoi University of Science and Technology, in December 2021. The daily PM2.5 concentrations were in the range of 39 - 204 µg/m3 (average of 119 µg/m3).
11p dianmotminh02 03-05-2024 7 3 Download
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Ebook "Analytical chemistry applied to emerging pollutants" addresses the highly relevant subject of emerging pollutants, which are especially alarming since most of the available treatment technologies are unable to degrade them. It discusses the sources of these pollutants and their fate in the environment, and the main tools available for their analysis. It also describes the representative environmental matrices (air, soil and water) and appropriate analytical methods for each matrix.
128p tracanhphuonghoa1007 22-04-2024 5 2 Download
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In this study, sixteen air samples from two small-scale household waste incinerators in Hai Hau district, Nam Dinh province, Vietnam, were collected and investigated for some pollutants such as SO2, NO2, CO, H2S, and BTEX.
8p viellison 28-03-2024 5 1 Download
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This study examines the association between air pollution and cash holdings using a sample of listed firms in Vietnam, a developing country that has a worrisome level of air pollution.
12p vimichaelfaraday 28-12-2023 8 4 Download
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The results of an investigation of heavy metals air pollution in Lam Dong province (Vietnam) using the moss biomonitoring method are presented in this paper. Barbula Indica moss samples were collected at 30 different locations in Da Lat and Bao Loc, two major cities of Lam Dong province.
14p vijeff 30-11-2023 9 3 Download
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Asphalt concrete pavement often appears damaged such as rutting, fatigue crack, potholes, etc. at high air temperature, heavy rain in long time, or at locations with high traffic, large horizontal force, and poor-quality construction sites. This causes a deterioration in the service quality, leading to a lot of maintenance costs.
8p visharma 20-10-2023 6 4 Download
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This study aims to evaluate the microbial contamination level and identify bacterial colonization of the operating room in the hospital. Methods: Three sampling procedures were used in this study, which includes swabbing, air sampler and contact agar plate. Collected samples from 8 ORs were transported and microbiologically processed using standard procedures.
6p vischultz 17-10-2023 3 2 Download
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The radioactivity of nuclides and content of heavy elements in soil, water and air are commonly important criteria in the environmental assessment of the mining areas. The study within the years of 2016-2018 on radioactivity and heavy elements content in the water and air samples at Lai Chau Rare Earth project (belonged to Dong Pao rare earth mine area) is to support the environmental survey and assessment program running by environment agency to manage the individually environmental mining area.
8p vicedric 08-02-2023 7 4 Download
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This efficient method allows for the remote collection of samples and rapid analysis of airborne transfluthrin from industrial applications, optimization studies of commercial products as well as domestic/household monitoring.
5p viginny 23-12-2022 18 4 Download
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A sensitive and accurate method for the quantification of 1 -Demethyl-1 -nitrosonicotine (NNN) and 4-(methylnitrosamino)-1-(3-Pyridyl)-1-butanone (NNK) in indoor air was developed and validated. To this aim, a novel approach for the collection of two tobacco-specific nitrosamines, using silica sorbent cartridges followed by simplified sample preparation and isotope dilution liquid chromatography/electrospray ionization tandem mass spectrometry, was applied.
10p viginny 23-12-2022 4 3 Download
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The applicability of an aerial drone as a carrier for new passive and active miniaturized air sampling systems, including solid phase microextration Arrow (SPME Arrow) and in-tube extraction (ITEX), was studied in this research.
7p viginny 23-12-2022 7 3 Download
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The reliable measurement of very volatile organic compounds (VVOC) in indoor air by use of thermal desorption gas chromatography (TD-GC) in order to include them into evaluation schemes for building products even nowadays is a great challenge.
9p viginny 23-12-2022 7 3 Download
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Proposed construction of or changes to a radiological effluent stack must meet the mixing criteria at the sampled stack location required by the standards ANSI/HPS N13.1–2011 and ISO 2889. For more than a decade, threedimensional computational fluid dynamics (CFD) models of such stacks have been used to assist in characterizing the sample location suitability.
7p vironald 15-12-2022 15 5 Download
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In this work the kinetic parameters of the main peak of the TL glow curve of alumina (α-Al2O3) irradiated at different doses are reported. Samples were irradiated at different X-ray doses using a 6 MeV linear accelerator (LINAC), in air at room temperature.
8p vironald 15-12-2022 5 3 Download
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The study conducted a survey on the dust concentration of PM and SO2 in the aluminum recycling craft village of Man Xa village, Van Mon commune, Yen Phong district, Bac Ninh province at two sampling locations: The center of Man Xa village and the temple area.
7p viwmotors 13-12-2022 10 2 Download
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We hypothesize higher air pollution and fewer greenness exposures jointly contribute to metabolic syndrome (MetS), as mechanisms on cardiometabolic mortality. Methods: We studied the samples in the Chinese Longitudinal Healthy Longevity Survey. We included 1755 participants in 2012, among which 1073 were followed up in 2014 and 561 in 2017.
12p viferrari 28-11-2022 12 2 Download
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Due to Nigeria’s high electricity cost, biomass fuels (gas and kerosene) are thought to be more cost-effective, less stressful, and commonly utilized in cooking in urban areas. Thus, this results in higher polycyclic-aromatichydrocarbons (PAHs) concentrations in indoor areas, posing a health risk.
9p vispyker 16-11-2022 5 1 Download
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The human lung tissue microbiota remains largely uncharacterized, although a number of studies based on airway samples suggest the existence of a viable human lung microbiota. Here we characterized the taxonomic and derived functional profiles of lung microbiota in 165 non-malignant lung tissue samples from cancer patients.
12p vialfrednobel 29-01-2022 13 0 Download