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Journal articles on the topic 'Respirable Particles'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Keles, Cigdem, and Emily Sarver. "A Study of Respirable Silica in Underground Coal Mines: Particle Characteristics." Minerals 12, no. 12 (2022): 1555. http://dx.doi.org/10.3390/min12121555.

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Respirable crystalline silica is now considered to be a major culprit of resurgent lung disease among US coal miners—especially in central Appalachia—though questions remain regarding the specific circumstances around exposure to it. As part of a larger investigation of dust in 15 US coal mines, a recent study examined the silica content in both the respirable mine dust samples and the samples of respirable dust generated in the laboratory from primary source materials (i.e., coal and rock strata and rock dusting products). It concluded the rock strata that is being drilled for roof bolting or

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2

Lee, Eun Gyung, Ryan Gill, Aliakbar Afshari, et al. "6 Characterization of Aerosolized Particles Generated During Cutting of Carbon Nanotubes-Embedded Concrete." Annals of Work Exposures and Health 67, Supplement_1 (2023): i87—i88. http://dx.doi.org/10.1093/annweh/wxac087.213.

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Abstract Engineered nanomaterials are revolutionizing many industries, but little is known about potential exposures during the life cycle of nano-enabled composites. This study was conducted to characterize aerosolized particles using direct-reading instruments and integrated air samplers during cutting multi-walled carbon nanotubes (MWCNT)-embedded concrete cylinder blocks. Three types of blocks, 0% (reference), low%, and high% MWCNT, were tested in a specially designed enclosure housing an apparatus for the cutting of a block with an automated computer-controlled process. The highest partic

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3

Ediagbonya, T.F., E.E. Ukpebor, F.E. Okieimen, and G. E. Okungbowa. "Comparative study of TSP, Inhalable Particles and Respirable Particles in Urban and Rural Areas in Niger Delta Region of Nigeria." Greener Journal of Physical Sciences 2, no. 3 (2012): 89–96. https://doi.org/10.5281/zenodo.3440932.

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<strong>Atmospheric environmental problems which had previously received scanty attention in Nigeria have become a subject of increasing National Significance over the two years. In this study the TSP, Inhalable and Respirable fraction were captured in ten locations in Sapele and five locations in Obaretin (rural) area gravimetrically between December 2008 and October 2009 using programmable Air check XR 5000 High volume sampler model 210-5000, with glass filter and respirable foam. The result showed that the mean TSP, Inhalable and Respirable fractions were significantly (P<0.05) higher in

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Jørgensen, Rikke Bramming, Ida Teresia Kero, Aleksander Blom, Esten Eide Grove, and Kristin von Hirsch Svendsen. "Exposure to Ultrafine Particles in the Ferroalloy Industry Using a Logbook Method." Nanomaterials 10, no. 12 (2020): 2546. http://dx.doi.org/10.3390/nano10122546.

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Background: It is difficult to assess workers’ exposure to ultrafine particles (UFP) due to the lack of personal sampling equipment available for this particle fraction. The logbook method has been proposed as a general method for exposure assessment. This method measures the time and concentration components of the time-weighted average concentration separately and could be suitable for investigation of UFP exposure. Objectives: In this study, we have assessed workers’ exposure to UFP in a ferrosilicon plant. The main tasks of the furnace workers were identified, and the logbook method was us

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Moore-Colyer, M. J. S. "Effects of soaking hay fodder for horses on dust and mineral content." Animal Science 63, no. 2 (1996): 337–42. http://dx.doi.org/10.1017/s1357729800014892.

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AbstractFour bales of hay were chosen from a stack of hay, barn-stored for 6 months. Each bale was subdivided into four 2·5 kg sections and one section from each bale was subjected to one of four water soaking treatments: 0, 0·5, 3 or 12 h. Post treatment, the samples were shaken for 9 min under a Negretti LS45F personal dust sampler which sampled the surrounding air. The samples were than analysed for levels of respirable particules < 5 μm in size and for amounts of sodium (Na), potassium (K), phosphorus (P), magnesium (Mg), calcium (Ca) and nitrogen (N). Soaking for 30 min reduced the num

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Mandler, W. Kyle, Seungkoo Kang, Mariana Farcas, Chaolong Qi, Sherri A. Friend, and Yong Qian. "In vitro toxicity assessment of respirable solid surface composite sawing particles." Toxicology and Industrial Health 36, no. 4 (2020): 250–62. http://dx.doi.org/10.1177/0748233720921683.

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Solid surface composites (SSCs) are a class of popular construction materials composed of aluminum trihydrate and acrylic polymers. Previous investigations have demonstrated that sawing SSC releases substantial airborne dusts, with a number-based geometric mean diameter of 1.05 µm. We reported that in mice, aspiration exposure to airborne SSC dusts induced symptoms of pulmonary inflammation at 24-h postexposure: neutrophilic influx, alveolitis, and increased lactate dehydrogenase (LDH) and pro-inflammatory cytokine levels in lavage fluid. The particles appeared to be poorly cleared, with 81% r

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Elder, Alison, David Chalupa, Samantha Romanick, Gregory Madejski, and James McGrath. "130 Exposures to Airborne Human-Respirable Microplastic Particles." Annals of Work Exposures and Health 67, Supplement_1 (2023): i70. http://dx.doi.org/10.1093/annweh/wxac087.169.

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Abstract Plastics and their breakdown products, specifically microplastics, are ubiquitously present in the environment from a variety of sources. Analysis of air samples has also revealed the presence of fragmented, spherical, and fibrous plastic particles in a wide range of sizes from the submicrometer scale up to tens of micrometers in length and diameter. However, few studies have addressed the health consequences associated with exposures to airborne microplastics, specifically whether they can enter the respiratory tract, where they will deposit, and how polymer chemistry and morphology

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8

Slouka, Syd, Jürgen Brune, Jamal Rostami, Candace Tsai, and Evan Sidrow. "Characterization of Respirable Dust Generated from Full Scale Cutting Tests in Limestone with Conical Picks at Three Stages of Wear." Minerals 12, no. 8 (2022): 930. http://dx.doi.org/10.3390/min12080930.

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Respirable rock dust poses serious long-term health complications to workers in environments where mechanical rock excavation is utilized. The purpose of this study is to characterize respirable dust generated by cutting limestone with new, partially worn, and fully worn conical pick wears. Characterizing limestone respirable dust can aid in decision making for respirable dust suppression levels and exposures throughout the lifetime of a pick in underground mining and engineering activities. The methods include full scale cutting of a limestone sample in the laboratory with three conical picks

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9

Blackman, M., and M. J. S. Moore-Colyer. "Hay for horses: the effects of three different wetting treatments on dust and nutrient content." Animal Science 66, no. 3 (1998): 745–50. http://dx.doi.org/10.1017/s1357729800009334.

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AbstractFive bales were randomly chosen from a stack of 6-month-old barn-stored hay. Four 2·5-kg sections were taken from each bale and subjected to one of four different water wetting treatments, 0-min soak, 10-min soak, 30-min soak and 80-min steaming. Post wetting, the sections were shaken for 9 min under a Negretti LS45F personal dust sampler which sucked-in any particles released into the surrounding air. The sampler contents were then analysed for respirable particle numbers (particles < 5um), and the hay subsampled and analysed for water-soluable carbohydrate, N, Na, K, Ca, P, Mg, Zn

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10

Madsen, Anne Mette. "Effects of Airflow and Changing Humidity on the Aerosolization of Respirable Fungal Fragments and Conidia of Botrytis cinerea." Applied and Environmental Microbiology 78, no. 11 (2012): 3999–4007. http://dx.doi.org/10.1128/aem.07879-11.

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ABSTRACTThe purpose of this study was to investigate the aerosolization of particles (micro- and macroconidia and fragments) fromBotrytis cinereacultures in relation to potential human inhalation in indoor environments. The influence of the following factors on the aerosolization ofB. cinereaparticles was studied: exposure to airflow, relative humidity (rh), changing rh, and plant or building materials. The aerodynamic diameter (da) and the respirable fraction of the aerosolized particles were determined. Conidia and fragments ofB. cinereawere not aerosolized as a response to a decrease in the

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11

Stebounova, Larissa V., Natalia I. Gonzalez-Pech, Jae Hong Park, T. Renee Anthony, Vicki H. Grassian, and Thomas M. Peters. "Particle Concentrations in Occupational Settings Measured with a Nanoparticle Respiratory Deposition (NRD) Sampler." Annals of Work Exposures and Health 62, no. 6 (2018): 699–710. http://dx.doi.org/10.1093/annweh/wxy033.

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Abstract There is an increasing need to evaluate concentrations of nanoparticles in occupational settings due to their potential negative health effects. The Nanoparticle Respiratory Deposition (NRD) personal sampler was developed to collect nanoparticles separately from larger particles in the breathing zone of workers, while simultaneously providing a measure of respirable mass concentration. This study compared concentrations measured with the NRD sampler to those measured with a nano Micro Orifice Uniform-Deposit Impactor (nanoMOUDI) and respirable samplers in three workplaces. The NRD sam

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12

Pan, Lei, Sean Golden, Shoeleh Assemi, et al. "Characterization of Particle Size and Composition of Respirable Coal Mine Dust." Minerals 11, no. 3 (2021): 276. http://dx.doi.org/10.3390/min11030276.

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Respirable coal mine dust (RCMD) particles, particularly the nano-sized fraction (<1 μm) of the RCMD if present, can cause severe lung diseases in coal miners. Characterization of both the particle size and chemical composition of such RCMD particles remains a work in progress, in particular, with respect to the nano-sized fraction of RCMD. In this work, various methods were surveyed and used to obtain both the size and chemical composition of RCMD particles, including scanning electron microscopy (SEM), scanning transmission electron microscopy (S-TEM), dynamic light scattering (DLS), and

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13

Wagner, Jeff, Janet M. Macher, Wenhao Chen, and Kazukiyo Kumagai. "Comparative Mask Protection against Inhaling Wildfire Smoke, Allergenic Bioaerosols, and Infectious Particles." International Journal of Environmental Research and Public Health 19, no. 23 (2022): 15555. http://dx.doi.org/10.3390/ijerph192315555.

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This work compares relative mask inhalation protection against a range of airborne particle sizes that the general public may encounter, including infectious particles, wildfire smoke and ash, and allergenic fungal and plant particles. Several mask types available to the public were modeled with respirable fraction deposition. Best-case collection efficiencies for cloth, surgical, and respirator masks were predicted to be lowest (0.3, 0.6, and 0.8, respectively) for particle types with dominant sub-micrometer modes (wildfire smoke and human-emitted bronchial particles). Conversely, all mask ty

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14

Huggins, C. W., S. J. Johnson, J. M. Segreti, and J. G. Snyder. "Comparison of the Particle Size Distribution of Alpha Quartz in Respirable Coal Mine Dust Samples With Four Reference Standards." Proceedings, annual meeting, Electron Microscopy Society of America 43 (August 1985): 122–23. http://dx.doi.org/10.1017/s0424820100117613.

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For the past 3 years the Bureau of Mines, Avondale Research Center, has been doing extensive particle size measurements on respirable coal dust collected at surface and underground mines in the eastern United States. Respirable dust is the portion of airborne dust that penetrates the deepest portion of the lungs and is generally considered to be particles less than 10 μm in size. To monitor dust exposure, approximately 40,000 respirable dust samples are collected by inspectors annually. The quartz in these samples is determined by either infrared spectrophotometry or x-ray diffraction. Both me

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Taylor, Philip E., Richard Flagan, Ann G. Miguel, Rudolf Valenta, and M. Michael Glovsky. "Identification of Birch Pollen Respirable Particles." Chest 123, no. 3 (2003): 433S. http://dx.doi.org/10.1016/s0012-3692(15)35255-7.

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16

Čavlović, Anka Ozana, Ivan Bešlić, Stjepan Pervan, et al. "Occupational exposure to inhalable and respirable wood dust of pedunculate oak (Quercus robur L.) in a furniture factory." BioResources 17, no. 4 (2022): 5831–47. http://dx.doi.org/10.15376/biores.17.4.5831-5847.

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Given the well-known carcinogenicity of hardwood dust, occupational exposure to oak wood dust has been determined in a furniture factory on different wood processing machines during sanding, planing, and milling. Determination of the mass concentrations of respirable and inhalable oak wood dust from ambient air was performed using personal sampling pumps and two types of filter holders: the Higgins-Dewell respirable dust cyclone, manufactured by Casella (Bedford, UK), and the inhalable dust IOM sampler manufactured by SKC (Dorset, UK). Out of a total of 30 values of inhalable mass concentratio

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17

Jawahar, S., K. Shridhar, V. Dhananjayan, et al. "Assessment of Particulate and Gaseous Fluoride in Phosphate Fertilizer Industry." Nature Environment and Pollution Technology 22, no. 4 (2023): 2189–94. http://dx.doi.org/10.46488/nept.2023.v22i04.045.

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Fluorides are emitted in both gaseous and particle forms in the industrial sector. However, studies usually only report total fluoride content. Therefore, the study aimed to assess the particulate, gaseous fluoride and correlate it with the respirable dust particles in Single Super Phosphate (SSP), Granular Single Super Phosphate (GSSP), and administration divisions of the industry. Respirable dust particles, particulate fluoride, and hydrogen fluoride in the work environment were collected on a filter cassette containing an MCE filter paper (0.8 micron 37-mm) and Na2CO3 impregnated backup pad

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18

Thomas, Richard J., Daniel Webber, William Sellors, et al. "Characterization and Deposition of Respirable Large- and Small-Particle Bioaerosols." Applied and Environmental Microbiology 74, no. 20 (2008): 6437–43. http://dx.doi.org/10.1128/aem.01194-08.

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ABSTRACT The deposition patterns of large-particle microbiological aerosols within the respiratory tract are not well characterized. A novel system (the flow-focusing aerosol generator [FFAG]) which enables the generation of large (>10-μm) aerosol particles containing microorganisms under laboratory conditions was characterized to permit determination of deposition profiles within the murine respiratory tract. Unlike other systems for generating large aerosol particles, the FFAG is compatible with microbiological containment and the inhalational challenge of animals. By use of entrapped Esc

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19

Hengstberger, M., and M. Stark. "Fibre and Particle Release from Cigarette Filters." Beiträge zur Tabakforschung International/Contributions to Tobacco Research 23, no. 6 (2009): 338–58. http://dx.doi.org/10.2478/cttr-2013-0869.

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AbstractParticulates, especially those in the respirable fraction, are generally suspected of being responsible for a host of respiratory and cardiovascular health problems that may include an increase in morbidity and mortality. These effects have been related not only to the carbonaceous particulates, such as diesel soot, but also to more inert dust particles without any specific intrinsic hazard.Therefore, any exposure to respirable dust from consumer products, and especially from tobacco products, is of considerable concern. In this context, a report of particular interest to the general p

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20

Fonseca, Ana Sofia, Anna-Kaisa Viitanen, Tomi Kanerva, et al. "Occupational Exposure and Environmental Release: The Case Study of Pouring TiO2 and Filler Materials for Paint Production." International Journal of Environmental Research and Public Health 18, no. 2 (2021): 418. http://dx.doi.org/10.3390/ijerph18020418.

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Pulmonary exposure to micro- and nanoscaled particles has been widely linked to adverse health effects and high concentrations of respirable particles are expected to occur within and around many industrial settings. In this study, a field-measurement campaign was performed at an industrial manufacturer, during the production of paints. Spatial and personal measurements were conducted and results were used to estimate the mass flows in the facility and the airborne particle release to the outdoor environment. Airborne particle number concentration (1 × 103–1.0 × 104 cm−3), respirable mass (0.0

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Fonseca, Ana Sofia, Anna-Kaisa Viitanen, Tomi Kanerva, et al. "Occupational Exposure and Environmental Release: The Case Study of Pouring TiO2 and Filler Materials for Paint Production." International Journal of Environmental Research and Public Health 18, no. 2 (2021): 418. http://dx.doi.org/10.3390/ijerph18020418.

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Pulmonary exposure to micro- and nanoscaled particles has been widely linked to adverse health effects and high concentrations of respirable particles are expected to occur within and around many industrial settings. In this study, a field-measurement campaign was performed at an industrial manufacturer, during the production of paints. Spatial and personal measurements were conducted and results were used to estimate the mass flows in the facility and the airborne particle release to the outdoor environment. Airborne particle number concentration (1 × 103–1.0 × 104 cm−3), respirable mass (0.0

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22

Tsai, Candace Su-Jung, Nara Shin, and Jürgen Brune. "Evaluation of Sub-micrometer-Sized Particles Generated from a Diesel Locomotive and Jackleg Drilling in an Underground Metal Mine." Annals of Work Exposures and Health 64, no. 8 (2020): 876–89. http://dx.doi.org/10.1093/annweh/wxaa069.

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Abstract Concerns have been raised regarding small respirable particles, i.e. sub-micrometer-sized particles, associated with mining activities. This evaluation was designed to investigate the emissions from jackleg drilling and diesel engines and to characterize the nature of emitted particles using gravimetric analysis and number metrics. The mass concentration to which workers are potentially exposed was determined from a 4-h sampling in the vicinity of drilling activities in an underground metal mine; this concentration was found to be lower than 0.6 mg m−3 of total respirable dust. This m

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23

Carrieri, Mariella, Carly Guzzardo, Daniel Farcas, and Lorenzo G. Cena. "Characterization of Silica Exposure during Manufacturing of Artificial Stone Countertops." International Journal of Environmental Research and Public Health 17, no. 12 (2020): 4489. http://dx.doi.org/10.3390/ijerph17124489.

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Artificial stone is increasing in popularity in construction applications, including commercial and residential countertops. Eco-friendliness, durability, and resistance to staining, make artificial stone attractive to consumers. Health concerns have arisen during manufacturing of artificial stone due to increased incidence of silicosis after relatively short exposure. Three artificial stone samples (A, B, and C) and one natural granite sample were subjected to cutting and grinding in a controlled environment. Gravimetric analysis, X-Ray diffraction, and scanning electron microscopy with energ

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Luthra, Antriksh, Aruna Ravi, Sirui Li, Steven V. Nystrom, Zechariah Thompson, and James V. Coe. "Dust Library of Plasmonically Enhanced Infrared Spectra of Individual Respirable Particles." Applied Spectroscopy 70, no. 9 (2016): 1546–54. http://dx.doi.org/10.1177/0003702816653126.

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This work characterizes collections of infrared spectra of individual dust particles of ∼4 µm size that were obtained from three very different environments: our lab air, a home air filter, and the 11 September 2001 World Trade Center event. Particle collection was done either directly from the air or by placing dust powder from various samples directly on the plasmonic mesh with 5 µm square holes as air is pumped through the mesh. This arrangement enables the recording of “scatter-free” infrared absorption spectra of individual particles of size comparable to the probing wavelengths whose vib

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Taravella, Michael J., John Viega, Fred Luiszer, et al. "Respirable particles in the excimer laser plume." Journal of Cataract & Refractive Surgery 27, no. 4 (2001): 604–7. http://dx.doi.org/10.1016/s0886-3350(00)00813-0.

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26

Jayawardena, Umesh, Linda Tollemark, Christer Tagesson, and Per Leanderson. "Pyrogenic effect of respirable road dust particles." Journal of Physics: Conference Series 151 (February 1, 2009): 012015. http://dx.doi.org/10.1088/1742-6596/151/1/012015.

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Wang, Xinhua, Xinhui Bi, Duohong Chen, Guoying Sheng, and Jiamo Fu. "Hospital indoor respirable particles and carbonaceous composition." Building and Environment 41, no. 8 (2006): 992–1000. http://dx.doi.org/10.1016/j.buildenv.2005.04.024.

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28

Hämeri, Kaarle, Pasi Aalto, Markku Kulmala, Esko Sammaljärvi, Erik Spring, and Pekka Pihkala. "Formation of respirable particles during ski waxing." Journal of Aerosol Science 27, no. 2 (1996): 339–44. http://dx.doi.org/10.1016/0021-8502(95)00552-8.

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ROMO-KRÖGER, C. M. "PIXE ANALYSIS VS. GRAVIMETRY TO MONITOR THE MASS CONCENTRATION OF ATMOSPHERIC AEROSOLS IN THE RESPIRABLE FRACTION." International Journal of PIXE 06, no. 01n02 (1996): 347–51. http://dx.doi.org/10.1142/s0129083596000363.

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It is demonstrated in this work, that PIXE is a good mass indicator for suspended particles in urban environments. Results are presented for several samplings performed in urban and other environments in Chile and other countries. Aerosols were collected on filters operated by a Stacked Filter Unit (SFU) in the range of particles < 15 µ m (PM15) and < 10 µ m (PM10), mainly the respirable fraction. For samplings performed in downtown Santiago, the sum of the concentrations of the elements detected by PIXE correlated well with the indices of respirable suspended particles (RSP) measured by

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Zhang, Rongrui, and Heng Zhao. "Small-Angle Particle Counting Coupled Photometry for Real-Time Detection of Respirable Particle Size Segmentation Mass Concentration." Sensors 21, no. 17 (2021): 5977. http://dx.doi.org/10.3390/s21175977.

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Respirable particulate matter air pollution is positively associated with SARS-CoV-2 mortality. Real-time and accurate monitoring of particle concentration changes is the first step to prevent and control air pollution from inhalable particles. In this research, a new light scattering instrument has been developed to detect the mass concentration of inhalable particles. This instrument couples the forward small-angle single particle counting method with the lateral group particle photometry method in a single device. The mass concentration of four sizes of inhalable particles in the environmen

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Damanhuri, Amir Abdullah Muhamad, Azian Hariri, Sharin Ab Ghani, Mohd Syafiq Syazwan Mustafa, Safarudin Ghazali Herawan, and Nuur Azreen Paiman. "The Effects of Virgin and Recycled PA12 Powders in SLS Processes on Occupational Exposures." International Journal of Environmental Science and Development 12, no. 11 (2021): 339–45. http://dx.doi.org/10.18178/ijesd.2021.12.11.1359.

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Particulate matter and ultrafine particles are emitted during the pre-processing and post-processing activities of selective laser sintering (SLS) processes, which is major concern to operators exposed to the powders. This study aims to determine the occupational exposure (in terms of the total particle concentration and respirable particulate concentration) during the pre-processing and post-processing activities of SLS processes using virgin and recycled polyamide 12 (PA12) powders. Personal air sampling was performed for each activity according to the NIOSH 0500 and NIOSH 0600 methods. Base

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Anthony, W. S., and E. P. Columbus. "Principles of Dust Removal in Gin Machinery: Theoretical and Measured." Journal of Engineering for Industry 107, no. 3 (1985): 288–94. http://dx.doi.org/10.1115/1.3186000.

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Some textile mill workers develop byssinosis as a result of cotton dust. A wet extraction process can be used to remove most of the respirable dust but the quality of the yarn is lowered. Gin processes remove proportional quantities of respirable dust as a result of the pneumatic and mechanical forces that are applied to the dust particles. The effectiveness of each gin process in removing 15-micron diameter dust particles was evaluated experimentally and a lint cleaner was the only machine that effectively removed dust particles. Theoretical analyses of the effect of the gin processes on 15-m

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Hall, Samantha, Delphine Bard, Graeme Hunwin, Elizabeth Leese, and Jackie Morton. "106 Investigation of Workplace Silica Exposures Using Novel Samplers and Methods." Annals of Work Exposures and Health 67, Supplement_1 (2023): i27. http://dx.doi.org/10.1093/annweh/wxac087.072.

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Abstract Scientists from the Health and Safety Executive visited a manufacturing workplace where coatings are prepared by loading powders, frit and water into various sized mills. The aim of the visit was to determine potential worker exposures to dust and respirable crystalline silica by static air monitoring and exhaled breath condensate. Low-cost particle monitors were deployed alongside more established scientific equipment. Airborne dust concentrations were measured at three site locations using two photometers, an optical particle counter (OPC) and a respirable cyclone. The size distribu

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Sweeney, Daniel, Cigdem Keles, and Emily Sarver. "Exploring the Effect of Particle Loading Density on Respirable Dust Classification by SEM-EDX." Minerals 14, no. 7 (2024): 728. http://dx.doi.org/10.3390/min14070728.

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Exposure to respirable coal mine dust (RCMD) still poses health risks to miners. Scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDX) is a powerful tool for RCMD characterization because it provides particle-level data, including elemental ratios (via the EDX signals) that can enable classification by inferred mineralogy. However, if the particle loading density (PLD) is high on the analyzed substrate (filter sample), interference between neighboring particles could cause misclassification. To investigate this possibility, a two-part study was conducted. First, the

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Hebisch, Ralph, Jörg Karmann, Ulrich Prott, and Anita Woznica. "85 Workers’ Exposure to Respirable and Inhalable Particles During Filling of Containers with Bulk Material and Efficacy of Protective Measures." Annals of Work Exposures and Health 67, Supplement_1 (2023): i9. http://dx.doi.org/10.1093/annweh/wxac087.024.

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Abstract Containers are filled with bulk material in many enterprises. To assess workers´ exposure to respirable and inhalable particles we have performed workplace measurements in ten enterprises. Beside personal air sampling stationary samplers were used in the filling zone at the exhaust ventilation and in the work area. Additionally, the PIMEX system with a direct reading light scattering photometer was used for visualisation of exposure. Workers filled containers with automatic and semi-automatic filling stations or manually using hand shovels. For all solids the dustiness for boths parti

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Gharpure, Akshay, James William Heim, and Randy L. Vander Wal. "Characterization and Hazard Identification of Respirable Cement and Concrete Dust from Construction Activities." International Journal of Environmental Research and Public Health 18, no. 19 (2021): 10126. http://dx.doi.org/10.3390/ijerph181910126.

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Construction is an important segment of the economy that employs millions of people. Construction dust is an occupational health hazard to millions of construction workers worldwide. The hazards associated with respirable dust depend upon its particulate size distribution and chemical composition, as these determine the deposition pattern in the respiratory tract and reactivity, respectively. This study presents characterization of the size and composition of the dust from two key construction materials—cast cement and poured concrete. The dust was generated by cutting the cured cement and con

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Pillai, R. S., D. B. Yeates, I. F. Miller, and A. J. Hickey. "Controlled release from condensation coated respirable aerosol particles." Journal of Aerosol Science 25, no. 3 (1994): 461–77. http://dx.doi.org/10.1016/0021-8502(94)90064-7.

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Bard, Delphine, Graeme Hunwin, Eelco Kuijpers, et al. "124 Laboratory Evaluation of Low-Cost Optical Particle Counters for Occupational Respirable Exposure Measurements." Annals of Work Exposures and Health 67, Supplement_1 (2023): i31. http://dx.doi.org/10.1093/annweh/wxac087.083.

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Abstract Direct-reading, time-resolved devices, such as optical particle counters (OPCs) and photometers, offer a unique insight into the temporal and spatial distribution of airborne particles. They can provide a comprehensive picture of changes in concentration of airborne particles in occupational settings and therefore can be used to investigate failures in engineering control systems as well as identify exposures driven by working procedures and methods. In recent years, new developments have led to the commercialisation of low- cost optical-based sensors, which provide particle matter (P

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Hall, Samantha, Graeme Hunwin, Delphine Bard, Liz Leese, and Jackie Morton. "39 Investigation of Workplace Silica Exposures Using Novel Samplers and Methods." Annals of Work Exposures and Health 67, Supplement_1 (2023): i89—i90. http://dx.doi.org/10.1093/annweh/wxac087.218.

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Abstract Scientists from the Health and Safety Executive visited a range of workplaces where there was the potential for exposure to silica. The aim of the visits was to determine potential worker exposures to dust and respirable crystalline silica by static air monitoring and exhaled breath condensate (EBC). To evaluate potential airborne exposures low-cost particle monitors were deployed alongside more established scientific equipment. On site airborne dust concentrations were measured at different locations using two photometers, an optical particle counter (OPC) and a respirable cyclone. T

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Kim, Boo Wook, Wonseok Cha, Sungwon Choi, Jungah Shin, Byung-Soon Choi, and Miyeon Kim. "Assessment of Occupational Exposure to Indium Dust for Indium-Tin-Oxide Manufacturing Workers." Biomolecules 11, no. 3 (2021): 419. http://dx.doi.org/10.3390/biom11030419.

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According to recent research, indium nanoparticles (NPs) are more toxic than micro-sized particles. While cases of indium lung disease have been reported worldwide, very little research has been conducted on the occupational exposure to indium NPs. Recently, an indium-related lung disease was reported in Korea, a global powerhouse for display manufacturing. In this study, we conducted an assessment ofoccupational exposure at an indium tin oxide (ITO) powder manufacturing plant, where the first case of indium lung disease in Korea occurred. Airborne dustwas obtained from a worker’s breathing zo

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Madureira, Eurico, Ahmed Aboelezz, Wei-Chung Su, and Pedram Roghanchi. "From Dust to Disease: A Review of Respirable Coal Mine Dust Lung Deposition and Advances in CFD Modeling." Minerals 13, no. 10 (2023): 1311. http://dx.doi.org/10.3390/min13101311.

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The United States has witnessed a concerning surge in the incidence of diseases like Coal Workers’ Pneumoconiosis (CWP), despite numerous efforts aimed at prevention. This study delves into the realm of respiratory health by investigating the deposition of dust particles within the respiratory tract and lungs. By analyzing particles of varying sizes, shapes, velocities, and aerodynamic diameters, we aim to gain a comprehensive understanding of their impact on deposition patterns. This insight could potentially drive changes in dust exposure protocols within mining environments and improve moni

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Tomašek, Ines, Claire J. Horwell, David E. Damby, et al. "Combined exposure of diesel exhaust particles and respirable Soufrière Hills volcanic ash causes a (pro-)inflammatory response in an in vitro multicellular epithelial tissue barrier model." Particle and Fibre Toxicology 13, no. 1 (2016): 67. https://doi.org/10.1186/s12989-016-0178-9.

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<strong>Background: </strong>There are justifiable health concerns regarding the potential adverse effects associated with human exposure to volcanic ash (VA) particles, especially when considering communities living in urban areas already exposed to heightened air pollution. The aim of this study was, therefore, to gain an imperative, first understanding of the biological impacts of respirable VA when exposed concomitantly with diesel particles.<strong>Methods: </strong>A sophisticated in vitro 3D triple cell co-culture model of the human alveolar epithelial tissue barrier was exposed to eith

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Gardner, Melinda, Martyn Cross, Sue Reed, Maggie Davidson, Rick Hughes, and Jacques Oosthuizen. "Pathogenic Potential of Respirable Spodumene Cleavage Fragments following Application of Regulatory Counting Criteria for Asbestiform Fibres." International Journal of Environmental Research and Public Health 19, no. 24 (2022): 16649. http://dx.doi.org/10.3390/ijerph192416649.

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Health risks from exposure to lithium-bearing spodumene cleavage fragments are unknown. While asbestiform fibres can lead to fibrosis, mesothelioma and lung cancer, controversy remains whether non-asbestiform cleavage fragments, having equivalent dimensions, elicit similar pathologic responses. The mineralogy of respirable particles from two alpha (α)-spodumene concentrate grades (chemical and technical) were characterised using semi-quantitative X-ray diffraction (XRD). Particles were measured using scanning electron microscopy (SEM) and the dimensions (length [L], diameter [D], aspect ratio

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Lastow, Orest, Jenny Andersson, Alexander Nilsson, and Wamadeva Balachandran. "Low-Voltage Electrohydrodynamic (EHD) Spray Drying of Respirable Particles." Pharmaceutical Development and Technology 12, no. 2 (2007): 175–81. http://dx.doi.org/10.1080/10837450701212594.

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McAtee, Britt, Len Sweet, Julie Panko, and Brent Finley. "Biological leaching of metals from respirable tire wear particles." Toxicology Letters 189 (September 2009): S225. http://dx.doi.org/10.1016/j.toxlet.2009.06.527.

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Finch, Gregory L., Karen L. McNeill, Thomas L. Hayes, and Gerald L. Fisher. "In Vitro interactions between pulmonary macrophages and respirable particles." Environmental Research 44, no. 2 (1987): 241–53. http://dx.doi.org/10.1016/s0013-9351(87)80233-5.

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Parumasivam, Thaigarajan, Anneliese S. Ashhurst, Gayathri Nagalingam, Warwick J. Britton, and Hak-Kim Chan. "Inhalation of Respirable Crystalline Rifapentine Particles Induces Pulmonary Inflammation." Molecular Pharmaceutics 14, no. 1 (2016): 328–35. http://dx.doi.org/10.1021/acs.molpharmaceut.6b00905.

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Miguel, António F., Murat Aydin, and A. Heitor Reis. "Indoor Deposition and Forced Re-suspension of Respirable Particles." Indoor and Built Environment 14, no. 5 (2005): 391–96. http://dx.doi.org/10.1177/1420326x05057948.

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Dodson, Ronald F. "Preface: Respirable elongated mineral particles and human health—Revisited." Journal of Toxicology and Environmental Health, Part B 19, no. 5-6 (2016): 149–50. http://dx.doi.org/10.1080/10937404.2016.1193358.

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Kiro, S. A., N. N. Abramova, V. V. Gridyaev, and N. O. Huselnykova. "Elemental composition of particles formed during welding with stick electrodes." Physics of Aerodisperse Systems, no. 61 (December 9, 2023): 193–201. http://dx.doi.org/10.18524/0367-1631.2023.61.292233.

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The elemental composition of welding fume (WF) respirable particles formed in carbon and low-alloy steels welding with stick electrodes with rutile (ANO-4) and the basic (UONI 13/45) type of coating was studied by X-ray-spectral electron-probe microanalysis. In the range from 0.25 to 16 µm aerodynamic diameter, all WF particles were divided into three groups according to their iron content: low (Fe≤20%), medium (20%<Fe<40%) and high (Fe≥40%). Each group contains various amounts of elements originating from the welding materials, which reflects their formation mechanism. Their relative ab

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