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Showing 1 to 15 of 15 for “"Diesel Particulate Matter"”.
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Diesel particulate matter quantification and reduction strategies for school buses
… to in-cabin levels of fine and ultrafine particulate matter, and determined the effectiveness of commercially available retrofit technologies towards reducing levels of particulate matter inside the school bus passenger compartment. Mobile tests were conducted with a school bus powered by …
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A Laboratory Investigation of Abatement of Airborne Diesel Particulate Matter Using Water Droplets
The term diesel particulate matter (DPM) is used to refer to the solid phase of diesel exhaust, which is mainly composed of elemental carbon and organic carbon. DPM is generally in the nano-size range (i.e., 10-1,000 nm). Occupational exposure is a health concern, with effects ranging from minor …
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Raman microscopy studies of carbon particles from diesel particulate matter (DPM) and coal dust
Diesel Particulate Matter (DPM) and coal dust samples were characterised using Raman microscopy, X-ray Photoelectron Spectroscopy (XPS), Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS), Thermo-Gravimetric Analysis (TGA), X-ray Fluorescence (XRF) spectrometry and Scanning …
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Real-time diesel particulate matter monitoring in underground mine atmospheres, association with the standard method and related challenges
<p>"Diesel-powered equipment is a significant component of underground mining operations. Miners' exposure to diesel exhaust is harmful. The standard Diesel Particulate Matter (DPM) monitoring method (NIOSH 5040 method) has limitations that preclude rapid DPM estimation and detailed understanding …
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Evaluation of Exposures to Diesel Particulate Matter Utilizing Ambient Air Monitoring and Urinary Biomarkers Among Pedestrian Commuters who Cross the U.S.-Mexico Border at San Ysidro, CA.
… traffic-related air pollution, including diesel exhaust (DE). DE exposure has been associated with numerous adverse health effects, particularly cardiovascular and respiratory problems, including as lung cancer. Pedestrian crossers wait in line for extended periods and stand within 10 feet …
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Design and development of a microwave-enhanced diesel soot oxidation system
Diesel particulate matter (PM) emissions have created considerable concern because PM is a suspected carcinogen. Up to this point, improved engine and fuel system design and control schemes have made the use of diesel particulate aftertreatment systems unnecessary for most applications in the …
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Modelling of the ventilation system using ventsim considering the full mine mechanization drive at Konkola copper mines
… exposure levels of miners to pollutants such as diesel particulate matter (DPM) have resulted in more complex mine ventilation networks, which cannot be solved by traditional methods currently being employed at KCM. Therefore, this study was undertaken with the objective of modelling an effective …
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Implications of the Use of Cerium Oxide Nanoparticle Diesel Fuel-Borne Catalysts: From Transformation During Combustion Through Exposure to Plants and Soils
The fate of nanoparticulate cerium oxide from the diesel fuel catalyst Envirox was studied from its presence in the additive to its transformations during combustion through its exposure to plants and soils using a broad range of analytical techniques. Envirox is a fuel-borne catalyst comprised of …
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Applications of Thermal and Laser-Based Methods for Monitoring Airborne Particulates in Coal Mines
… and laser-based methods to monitor airborne particulates in underground coal mines. Specifically, coal and mixed mineral mine dust, as well as, diesel particulate matter (DPM). These particulates have historically, and continue to have, significant health impacts on underground miners. …
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VOC Interference with Standard Diesel Particulate Analysis for Mine Samples: Exploring Sources and Possible Solutions
Exposure to diesel engine exhaust is linked to chronic and acute illness. In underground mines, workers can be exposed to high concentrations for extended periods of time. Therefore, Mine Safety and Health Administration (MSHA) enforces personal exposure and engine emission limits. These …
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A fogging scrubber to treat diesel exhaust: field testing and a mechanistic model
Diesel particulate matter (DPM) is comprised of two main fractions, organic carbon (OC) and elemental carbon (EC). DPM is the solid portion of diesel exhaust and particles are submicron in size typically ranging from 10 to 1000 nanometers. DPM is a known respirable hazard and occupational exposure …
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A Series of Studies to Support and Improve DPM Sampling in Underground Mines
Diesel particulate matter (DPM) is the solid portion of diesel exhaust, which occurs primarily in the submicron range. It is complex in nature, occuring in clusters and agglomerated chains, and with variable composition depending on engine operating conditions, fuel type, equipment maintenance, …
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Assessment of Socioeconomic and Environmental Factors for Diabetes Mellitus Prevention in San Bernardino County, California: Using Secondary Data and Geospatial Analysis
… attainment), and environmental exposures (e.g., particulate matter and access to parks and supermarket access, food insecurity, SVI, walkability, HPI scores, CalEnvironScr4.0, etc.). Spatial mapping and Hotspot analysis were conducted using ArcGIS Pro to identify the spatial distribution of …
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Continuous DPM Monitoring in Underground Mine Environments: Demonstration of Potential Options in the Laboratory and Field
Diesel particulate matter (DPM) is the solid portion of diesel exhaust. DPM occurs primarily in the submicron range, and poses a number of respiratory and other health hazards including cardiovascular and pulmonary disease. Underground miners typically have the highest DPM exposures compared to …