Dust Sampling Articles

  • Silica-Very High on OSHA’s Inspection List

    Summary of OSHA Regulation Separate regulations were issued for Construction (29CFR1926.1153) and General Industry/Maritime (29CFR1910.1053). The general provisions to both regulations are generally the same: Permissible Exposure Limit (PEL) over an 8-hour shift is 50 mg/M3 of air. Action Level of ...

  • No Need for Redundant Systems

    How many gas monitoring systems does it take to measure a gas concentration? Strangely enough, the answer is not always one. Gas concentration monitoring is not always an easy task. In the ideal world, a monitoring system needs no maintenance, it is infinitely fail-safe, and it operates impeccable irrespectively of the conditions of the gas. However, then reality hits the system ...


    By Opsis AB

  • Microplastics Found in Colorado Rain

    Surprise discovery raises questions about how much plastic is present in rain, and how it got there If all the recent news about global plastics pollution hasn’t been alarming enough, scientist Greg Wetherbee of the United States Geological Survey (USGS) recently — and unexpectedly — found ...


    By Fluence Corporation

  • Silica Exposure to Workers in Oil and Gas Hydraulic Fracking

    Exposure to High Levels of Crystalline Silica Silica exposure to workers is nothing new. Also hydraulic fracturing or “fracking” is nothing new either. What’s new is the number of workers exposed to high levels of crystalline silica as the oil and gas “fracking” industry has gone into high gear. The use of a large volume of sand as a proppant—to ...

  • Model-Measurement Consistency and Limits of Bioaerosol Abundance Over the Continental United States

    Abstract. Due to low concentrations and chemical complexity, in-situ observations of bioaerosol are geographically and temporally sparse, and this limits the accuracy of current emissions inventories. In this study, we apply a new methodology, including corrections for misidentification of mineral dust, to measurements of single particles over four airborne sampling campaigns to derive vertical ...

  • Wood Dust – Carcinogen or Nuisance?

    There is an increasing controversy over the hazards of wood dust. Originally it was considered more of a nuisance than a hazard. This is changing, for a number of reasons. We are learning more about the allergic reactions of individuals to certain varieties of woods. Also, many uses of woods result in their treatment with a variety of chemicals, some of which can be very toxic such as ...

  • Silica-OSHA Issues Final Rule for Exposure to Crystalline Silica

    OSHA now extends the compliance date from June 23, 2017 to September 23, 2017 for the Construction Industry. This notice was issued on April 6, 2017. OSHA issued the final rule for new regulations for exposure to crystalline silica on March 23, 2016. Separate regulations were issued for Construction (29CFR1926.1153) and General Industry/Maritime (29CFR1910.1053). The general ...

  • Crystalline Silica: Sampling/Testing of Workers for Respirable Silica

    Crystalline silica has been classified as a lung carcinogen. OSHA issued its final rules for controlling worker exposure to crystalline silica on March 23, 2016. The specific OSHA regulation is 29CFR1926.1153 (Construction Standard) and 29CFR1910.1053 (General Industry/Marine). Sampling of workers that handle sand (silica) such as concrete mixing, paving, gravestones, countertops, marble ...

  • Silica-OSHA Final Rule for Crystalline Silica in Effect June 23, 2018

    OSHA regulations have been in effect as of October 23, 2017 for the Construction Industry.  This notice was issued on October 19, 2017.  The effective date for General Industry and Maritime is June 23, 2018. Separate regulations were issued for Construction (29CFR1926.1153) and General Industry/Maritime (29CFR1910.1053). The general provisions to both regulations are generally the ...

  • Aircraft and ground measurements of dust aerosols over the west African coast in summer 2015 during ICE-D and AER-D

    Abstract. During the summertime, dust from the Sahara can be efficiently transported westwards within the Saharan air layer (SAL). This can lead to high aerosol loadings being observed above a relatively clean marine boundary layer (MBL) in the tropical Atlantic Ocean. These dust layers can impart significant radiative effects through strong visible and IR light absorption and scattering, and can ...

  • Fixed, Portable or Personal Monitoring for Benzene Detection

    Fixed, portable or personal monitoring for benzene detection?  Applications for PIDs include:- fixed systems for area or fenceline monitoring of fugitive emissions portable instruments for con ned space entry checks or leak detection & repair ...


    By Ion Science Ltd.

  • Workplace Monitoring: Who, What, When, Why, How?

    In my previous articles in this series for SHP readers, I have focussed on the need for current attitudes to general health and safety processes to change and emphasised the importance of regular monitoring. The best way to combat those ‘hidden killers’ and protect our workforces is to increase awareness of the benefits of regular monitoring and detection.  Employees then need to ...


    By Casella

  • Sources of organic matter in first flush runoff from urban roadways

    This study aims to explore the influential sources of organic matter in first flush runoff from urban roadways by comparing organic carbon content and particle size distribution in road dust with those from discharge from vehicles during rainfall. Samples on first flush runoff and road dust were collected from urban roadways. In addition, vehicle drainage was assumed to flow from vehicles ...


    By IWA Publishing

  • Sources of organic matter in first flush runoff from urban roadways

    This study aims to explore the influential sources of organic matter in first flush runoff from urban roadways by comparing organic carbon content and particle size distribution in road dust with those from discharge from vehicles during rainfall. Samples on first flush runoff and road dust were collected from urban roadways. In addition, vehicle drainage was assumed to flow from vehicles ...


    By IWA Publishing

  • PAH contents in road dust on principal roads collected nationwide in Japan and their influential factors

    Fifty-four road dust samples were collected from principal roads (n = 37) and residential roads (n = 17) nationwide in Japan from March 2010 to November 2012. Sixteen polycyclic aromatic hydrocarbons (PAHs) and ignition loss (IL) were determined. The total PAH contents ranged from 62 to 6,325 ng g−1 with a geometric mean of 484 ng g−1. The IL ranged from ...


    By IWA Publishing

  • PAH contents in road dust on principal roads collected nationwide in Japan and their influential factors

    Fifty-four road dust samples were collected from principal roads (n = 37) and residential roads (n = 17) nationwide in Japan from March 2010 to November 2012. Sixteen polycyclic aromatic hydrocarbons (PAHs) and ignition loss (IL) were determined. The total PAH contents ranged from 62 to 6,325 ng g−1 with a geometric mean of 484 ng g−1. The IL ranged from ...


    By IWA Publishing

  • Effect of salinity on the toxicity of road dust in an estuarine amphipod Grandidierella japonica

    Urban runoff can reach coastal aquatic environments; however, little is known about the effect of salinity on road runoff toxicity. The objective of this study is to investigate the toxicity of highway road dust over a salinity gradient from 5 to 35‰, in an estuarine benthic amphipod, Grandidierella japonica. Road dust toxicity was evaluated by assessing mortality after 10 days of exposure ...


    By IWA Publishing

  • How do typhoons and dust storms affect rainwater harvesting systems?

    This study aimed to investigate the effects of typhoons and dust storms on harvested rainwater quality. Rainwater samples were collected from the rainwater harvesting systems in northern Taiwan between September 2010 and April 2013. There were five typhoons and one dust storm that hit Taiwan during this period. Harvested rainwater was analyzed, including pH, electrical conductivity, turbidity, ...


    By IWA Publishing

  • Ambient Air Sampling Methods

    Pollutants are nothing but any substance that may present in an atmosphere in such a concentration that it may harmful to surrounding, living organism or human being. Sampling and analysis of air pollutants is known as Air quality monitoring and it is major part of environmental monitoring. There are many advanced types of ambient air Sampling methods. we will learn here only which are most ...


    By Perfect Pollucon Services

  • Technical Hints and Tips for Optimal Performance of your Loeser Osmometer

    General function and description: The sample (serum, blood, urine or any other aqueous solution) is filled in a plastic sample tube and cooled via a Peltier element. These are semiconductor devices, which become cold ...


    By Camlab Limited

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