aerosol generator Articles

  • EPA Proposes SNUR for Functionalized Carbon Nanotubes (Generic)

    On October 27, 2016, the U.S. Environmental Protection Agency (EPA) proposed significant new use rules (SNUR) for three chemical substances that were the subject of premanufacture notices (PMN), including functionalized carbon nanotubes (generic). According to the notice, the PMN states that the substance will be used as a thin film for electronic device applications. Based on structure-activity ...


    By Bergeson & Campbell, P.C.

  • Estimated occupational risk from Bioaerosols generated during land application of class B biosolids

    Some speculate that bioaerosols from land application of biosolids pose occupational risks, but few studies have assessed aerosolization of microorganisms from biosolids or estimated occupational risks of infection. This study investigated levels of microorganisms in air immediately downwind of land application operations and estimated occupational risks from aerosolized microorganisms. In all, ...

  • Variations in tropospheric submicron particle size distributions across the European continent 2008–2009

    Cluster~analysis of particle number size distributions from~background sites across Europe~is presented. This generated a total of nine clusters of particle size distributions which could be further combined into two main groups, namely: a south-to-north category (four clusters) and a west-to-east category (five clusters). The first group was identified as most frequently being detected inside ...

  • A new sustainability model for machining processes

    It is generally recognised that the sustainability concept integrates economic, environmental and social aspects. It would be interesting for manufacturers to be able to know which process, workpiece materials or machining condition is more sustainable than another. In this paper, a new model for the sustainability in the machining field is proposed with the goal to increase productivity, reduce ...


    By Inderscience Publishers

  • SMEDIS: scientific model evaluation of dense gas dispersion models

    SMEDIS is a project currently in progress to develop a protocol for the scientific evaluation of dense gas dispersion (DGD) models, with particular emphasis on the complex effects of obstacles, terrain and aerosols often found in real situations, and then to apply this protocol to DGD models currently in use in Europe. This paper describes the general features of a model evaluation project and ...


    By Inderscience Publishers

  • Monitoring Airborne Contaminants in Workplace Atmospheres, Using Sampling Devices and GC or HPLC

    Workers' exposure to hazardous substances must be held within acceptable limits. Therefore, airborne contaminant vapor and particles (including aerosols) in industrial atmospheres must be monitored. In the United States, the National Institute for Occupational Safety and Health (NIOSH) and the Occupational Safety and Health Administration (OSHA) offer, for many such substances, specific ...


    By Sigma-Aldrich Co., LLC

  • Estimation and Mapping of Wet and Dry Mercury Deposition Across Northeastern North America

    Whereas many ecosystem characteristics and processes influence mercury accumulation in higher trophic-level organisms, the mercury flux from the atmosphere to a lake and its watershed is a likely factor in potential risk to biota. Atmospheric deposition clearly affects mercury accumulation in soils and lake sediments. Thus, knowledge of spatial patterns in atmospheric deposition may provide ...


    By Springer

  • Method 301 Evaluation of Candidate conditional methods case study

    A new metal emissions measurement and validation system has recently been developed that has the potential to significantly improve our understanding of metal emissions from a wide range of source categories. This system consists of: A continuous emission monitoring system (Xact-CEMS) An instrumental analyzer procedure (Xact-IAP) A sampling and analysis measurement method ...


    By Cooper Environmental

  • Annual simulation of secondary pollution over northern Italy

    A secondary pollution modelling system for simulating airborne dispersion and chemical reactions is applied over a regional scale domain located in the North-West of Italy, where urban and industrial areas are present. It was found an overestimation of NO2 in the urban areas, probably due to an underestimation of the vertical diffusivity; the analysis of O ...


    By Inderscience Publishers

  • Interhemispheric transport of viable fungi and bacteria from Africa to the Caribbean with soil dust

    Daily aerosol samples collected in trade winds at Barbados, West Indies, throughout 1996–1997 yielded significant concentrations of viable (culture-forming) bacteria and fungi only when African dust was present. Air masses from the North Atlantic, North America, and Europe yielded no cultivable organisms. The strong association of cultivable organisms with African dust suggests various factors ...


    By Springer

  • GAW Regional Station for Atmospheric Research - 2005 Report

    The aim of the JRC-Ispra station is to monitor the concentration of pollutants in the gas phase, the particulate phase and precipitations, as well as aerosol optical parameters, which can be used for assessing the impact of European policies on air pollution and climate change. Measurements are performed in the framework of international monitoring programs like the Co-operative program for ...


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