ultra-fine particle monitoring Articles

  • 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

  • Nanoparticle Monitoring in Ultra-Clean Manufacturing Environments

    Abstract With its 10 nm sensitivity, the NPC10 NanoParticle Counter bridges the gap between conventional aerosol optical particle counting at 0.1 μm (100 nm) and sub-nm scale airborne molecular contamination. Experimental and field data demonstrate that ISO Class 1 and 2 environments, which have very low concentrations of particles greater than 100 nm, can possess much higher ...


    By Particle Measuring Systems

  • 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

  • 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

  • New Particle Monitoring Strategies in UPW for 300 mm Fabs

    Abstract Process failures caused by particles in Ultra Pure Water (UPW) are relatively infrequent events, but with the move to 300 mm wafers and 90 nm line widths, they can have significant financial impact. Most particle monitoring strategies in the past focused on the use of the mobile and inline high sensitivity 0.05 micron particle counters. This paper examines the opportunities to ...


    By Particle Measuring Systems

  • Fine China

    A daily commute in West Michigan might take someone to Grand Rapids or Kalamazoo. But this January, Jeannie Jansma of Sebright Products in Hopkins headed to work on the other side of the world. As Sebright’s marketing director, Jansma spent 10 days in China meeting with her Asian counterparts in the pulp and paper industry to look for new technology and to learn what the United States needs to ...


    By Sebright Products, Inc.

  • NanoVision Technology Enables Particle Monitoring of High Molecular Scatter Chemistries

    Abstract Semiconductor manufacturing utilizes ultra-pure chemistries which frequently have significant molecular scatter. This high molecular scatter reduces the signal-to-noise efficiency of older particle metrology technology and in some cases prevents its application in more demanding chemistries. In production, an adaptable metrology solution is required to effectively characterize ...


    By Particle Measuring Systems

  • Monitoring of ultrapure water (UPW) systems using the Ultra DI® 20 Liquid Particle Counter

    Abstract Through continuous process and equipment advancements, semiconductor manufacturers are approaching 14 nm feature sizes and heading even smaller, while hard-disk drive fly heights are now less than 10 nm. This ever-reducing device feature size requires comparable cleanliness-level improvements in ultrapure water (UPW). UPW purity is especially important with its high use in ...


    By Particle Measuring Systems

  • Which Particle Counter is Best for You? Measurement of Ultrapure Water (UPW) and Ultra Clean Fluids

    The purity of water and chemicals used in the semiconductor industry has improved dramatically, creating near particle-free environments. The ITRS roadmap for the future shows continued decreasing line widths and a corresponding decrease in the critical particle size. The increasing cleanliness of liquids and the decreasing critical particle size has caused a corresponding increase in particle ...


    By Particle Measuring Systems

  • 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

  • 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

  • The invisible fine dust

    Air is lifeblood. Daily we inhale approximately 15.000 liter. Still, the air contains invisible pollutants, which vary in its composition and concentration depending on the location. Especially the respirable particles with a diameter of less than 2.5 µm (PM 2.5) were considered to be particularly dangerous. According to a current study conducted by the Max Planck Society, ...

  • LNF particle count – How low can you go?

    Contamination control is an important aspect of oil condition monitoring for fluid power applications, and it’s important to be able to reliably report clean oil cleanliness levels - especially for larger particles. Large abrasive contamination will naturally occur in fewer quantities than the smaller particles in any ingress contamination distribution. At very low cleanliness levels (ISO ...


    By Spectro Scientific

  • Mining Emissions Effectively Monitored with Micro Pulse LiDAR Technology

    Mining operations include blasting, excavating, scraping, and sifting large amounts of dirt. These activities create dust and other emissions that are transported by air currents to surrounding areas. It is easy to say that dangerous particulate matter (PM) generated by mining should be monitored and kept to a minimum; however, it is very challenging to measure the levels of contaminants in the ...

  • Measurement of fine dust in combination with Lufft weather sensors - Case Study

    Our compact weather stations are part of monitoring stations for measurement of fine dust, manufactured by our customers Grimm Aerosol Technik GmbH and PALAS. The fine dust measurement stations have proved a success the world over. The Lufft compact weather stations WS300-UMB, WS500-UMB, WS600-UMB are used for monitoring of climate data. Thanks to the Lufft sensors the stations will not only ...

  • 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

  • Different technology options for monitoring oil in produced water – inline continuous monitoring and IR analysis

    No offshore facility wants to be caught with a sheen around their platform as that can result in a costly fine for exceeding discharge permit limits for oil. Onboard oil in water analyzers are necessary to ensure the oil/water separation systems are functioning properly before overboard disposal of the produced water. Bench top analyzers have traditionally been used to test oil in water although ...


    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

  • Did You Know that GRIMM Measuring Stations are Equipped with Lufft Weather Sensors?

    Do you already know our system partner GRIMM Aerosol Technology? Their aerosol measuring systems are in use all over the world where the focus lies on inorganic and organic aerosols as well as greenhouse gase. In the following article we present you three spectacular applications in the deepest jungle, on a frosty mountain peak and in a busy metropolitan area… About GRIMM Aerosol Technik ...

  • Monitoring of Terpene Emissions from Pine Trees by Auto-TDGCs

    It has been established that organic aerosols (OA) makes up a major fraction of fine particulate matter in all region of the atmosphere. This fraction accounts approximately for half of the total PM2.5 dry mass. Primary OA is directly emitted in the trophosphere from anthropological and natural sources whereas secondary OA (SOA) is formed in-situ in the atmosphere from the oxidation of biogenic ...


    By Chromatotec Group

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