particle monitoring Articles

  • Old container, new station: WS600 part of air quality measurement system in Kutaisi

    An AQM station including a Lufft WS600 all-in-one weather sensor was installed by our local system integrator ELKO LLC in Kutaisi, Georgia in May 2017. It was mounted on an existing measurement container provided by the customer LEPL National Environmental Agency. The system consists of a Fidas® 200 fine dust monitor and immission measurement system detecting PM2.5 and PM10 particles ...

  • `Standards are desperately needed for plastic and pesticide contamination in soil´

    In addition to plastic in the oceans, plastic contamination in arable land throughout Europe and other parts of the world is a growing problem. No standards exist for these types of soil pollutants, nor for pesticide residues or their degradation products. For this reason, Professor Violette Geissen is calling for standards to be implemented. On 15 June, Geissen will deliver her inaugural address ...

  • Particles Matter

    We all can recall our mothers telling us as children to go outside and get some fresh air.  Who would have known just how important this statement was and is today?  Air pollution affects the entire planet. You can't escape it anywhere not even inside your home or office. According to the United States Environmental Protection Agency (EPA), indoor air can be up to ten times more ...


    By Met One Instruments, Inc.

  • A quick guide to oil analysis for engine test applications

    Reliability testing is a very important component of new engine development. Engineers need to fully understand and chart the engine lifetime performance under a variety of conditions before mass production may be considered. Many important performance data parameters are collected in real time through the many different types of sensors that are connected to the engine in the test cell and oil ...


    By Spectro Scientific

  • On PM 2.5 Filters, Let’s just clear the air between us; ok?

    In the area of a former military building complex in the Chaoyang District of Beijing is a unique and thriving artistic community.  In the middle of this art district, is a strange 7-meter tall tower shaped like an avant-garde metallic pineapple.  Designed by Dutch artist Daan Roosegaarde, it is both an artistic creation and a functional tool meant to test a possible solution for ...


    By Sterlitech Corporation

  • Guide to Measuring Particles in Oil

    Particle counting is a critical aspect of any machine conditioning program and there are many tools out there available to monitor and track the quantity and severity of the contamination, be it due to external contamination or machine wear. The ...


    By Spectro Scientific

  • Automating oil particle analysis

    Run up to 25 samples at one time The major issue for premature failure in wind turbine gearboxes is bearing failure, which leads to gearbox failure. A wind turbine gearbox will not survive if the oil is ...


    By Spectro Scientific

  • A preliminary review of gas-to-particle conversion monitoring and modelling efforts in the USA

    Ammonia and inorganic acid gases emitted from livestock and poultry operations, manure treatment, handling and application can affect air quality by the formation of secondary fine particles. The process of gas-to-particle conversion (GTPC) of relatively short-lived gaseous ammonia to more persistent fine particles can affect local and regional air quality far away from the agricultural sources. ...


    By Inderscience Publishers

  • Tiny particles get big attention

    Regulatory developments are picking up steam. Here"s a summary of key initiatives. Federal Measures Nanoscale materials may figure in Toxic Substances Control Act (TSCA) reform. While not mentioning "nanotechnology," a bill introduced on April 15, by Sen. Frank Lautenberg (D-NJ) addresses chemicals with "special substantive characteristics." The bill ( ...


    By Bergeson & Campbell, P.C.

  • Real-Time Measurement of Outdoor Tobacco Smoke Particles

    ABSTRACT The current lack of empirical data on outdoor tobacco smoke (OTS) levels impedes OTS exposure and risk assessments.  We sought to measure peak ...

  • Modelling aerated flows with smoothed particle hydrodynamics

    Modelling aerated flows is a complex application of computational fluid dynamics (CFD) since the interfaces between air and water change rapidly. In this work, the simulation of aerated flows with the smoothed particle hydrodynamics (SPH) method is investigated with a focus towards the application in engineering practice. To prove the accuracy of the method, the processes of air entrainment and ...


    By IWA Publishing

  • Characterisation and nonlinear optical properties of CdS nano-particles

    CdS nano-particles have been synthesised using chemical precipitation. The formation and microstructure of CdS nano-particles were monitored by X-ray diffraction (XRD), scanning electron microscopy (SEM), UV-Vis spectrum and z-scan technique. Using the UV-Visible, the band gap of this nano-particle is obtained about 3.54 eV and the spectrum of this material shows a 310 nm peak. X-ray diffraction ...


    By Inderscience Publishers

  • Office Printers Emit Ultra fine particle pollution

    We’ve heard quite a bit about particulate matter PM10s and PM2.5s as components of air pollution that we are exposed to on a daily basis. Recent research papers are highlighting the dangers of ultra fine particles (UFPs), which have a diameter of less than 0.1 micrometres (or 100 nanometres). By contrast, the diameters of particulate pollution from PM10s and ...


    By Commercial Air Filtration

  • Dust monitoring

    Generally, two different approaches are used to measure the amount of dust deposited on a surface; Determination of the soiling of a surface, by a change in its properties; Determination of the quantity of dust deposited, by weight. WHAT IS DUST? Dust is a generic term used to describe fine particles that are suspended in the atmosphere. Dust comes from a wide variety of sources, including soil, ...


    By Queensland Laboratory

  • Simultaneous determination of PM fractions, particle number and particle size distribution in high time resolution applying one and the same optical measurement technique

    Abstract The Fidas fine dust monitoring systems comprise an optical aerosol spectrometer, which is characterized by very good instrument characteristics, and utilize a sophisticated approach to convert the measured information on particle number and particle size into mass concentrations. As monitoring of PM requires reliable and quality-controlled performance of the measuring systems, ...


    By Palas GmbH

  • Automated Oil Particle Analysis Helps Prevent Gearbox Failures

    The major issue for premature failure in wind turbine gearboxes is bearing failure, which leads to gearbox failure. A wind turbine gearbox will not survive if the oil is not clean and especially if the hard ferrous particles are not removed from ...


    By Spectro Scientific

  • Ultrafine particle and gas contamination of urban air in Seoul, Korea, during winter

    To investigate the contamination characteristics of ultrafine particles and gases originating from vehicle exhaust, data were obtained from one-week intensive monitoring at an urban site in Seoul, Korea during the winter of 2003. The diurnal variations of size-segregated particle concentrations for both ultrafine particles (20?100 nm) and accumulation mode particles (100?600 nm) were very ...


    By Inderscience Publishers

  • Fine particle capture in biomass boilers with recirculating gas cyclones: Theory and practice

    This paper addresses the theoretical development and experimental validation of optimized recirculating reverse-flow gas cyclones. The simulation of these systems is based on the predictive properties of a finite diffusivity model, modified to include partial recirculation of the cyclones' emissions. Experimental validation was obtained at laboratory and pilot scales at low temperatures (up to ...

  • Utility of the laser particle counter for determination of drinking-water toxicity

    Particle toxicity in various water samples depends on the mixture of toxicants in each sample. Toxicity values for different samples can be expressed using the new metric: Particle Toxicity. Use of the Spectrex PC-2000 was the instrument of choice in enumerating the particle concentrations for the calculation of the particle toxicity of drinking-water and reference toxicant suspensions. ...


    By Spectrex Corporation

  • Chemical reactions at street scale using a Lagrangian particle dispersion model

    In the context of the FEDER AIRCITY project, Paris City is modelled with a 3 m resolution with the purpose of computing pollutant concentration relevant for human exposition. This project involves AIRPARIF (Ile-de-France Air Quality Monitoring Network), for emission and immission data, CEA (French Atomic and Alternative Energy Agency) for HPC availability, National Geographic Institute (IGN) for ...


    By Inderscience Publishers

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