Download or read book Concentrations of Diesel Particulate Matter DPM Within an Underground Mine written by Ashley Neby (R.) and published by . This book was released on 2012 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: The demands for silica sand are steadily increasing as a result of its usefulness in hydraulic fracturing, a process used to extract natural resources from the earth. As the demand for silica increases, the amount of diesel engines also increases to aid in the mining and processing of silica sand. Diesel Particulate Matter (DPM) is the material exhausted from diesel engines, and is hazardous to human health. The Purpose of this study was to evaluate the concentrations of Diesel Particulate Matter (DPM) within an underground silica sand mining site. This research included industrial hygiene sampling, which was compared against previous concentrations collected by the Mining Safety and Health Administration (MSHA). Samples were gathered utilizing a DPM collection filter, cassette, jeweled impactor, and air-pump; which measured the concentration within the mine. Past samples collected by MSHA have exceeded Permissible Exposure Limits (PEL) enforced by 30CFR57.5060. The sample collected during this research was well below permissible limits. Although the mine was incompliance with federal regulations, further controls are recommended to reduce potential for DPM inhalation.

Download or read book Controlling Exposure to Diesel Emissions in Underground Mines written by Aleksandar D. Bugarski and published by SME. This book was released on 2012 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of diesel-powered equipment in underground mining operations provides many benefits to the industry. It also presents many challenges to the health and safety of workers as it is a significant source of submicrometer aerosols and noxious gases. This book was developed to assist the coal and metal/nonmetal underground mining industries in their efforts to reduce the exposure of workers to aerosols and gases from diesel-powered equipment. It includes information collected by researchers at the National Institute for Occupational Safety and Health/Office of Mine Safety and Health Research (NIOSH/OMSHR). Prior to the production of this text, the knowledge on this complex issue was fragmented. The goal of this volume is to make the information available in one easy-to-use reference. The book includes comprehensive, mine-specific programs for use by mechanics, mine ventilation engineers, industrial hygienists, mine managers, union health and safety representatives, and personnel responsible for the acquisition of diesel vehicles, engines, exhaust aftertreatment systems, fuels, and lubricants. The description of methods to reduce exposure to diesel aerosols includes curtailment of diesel particulate matter and gaseous emissions at their source, and controlling airborne pollutants with ventilation and personal protective equipment. This information should also help researchers in industry, government, and academia to identify areas that need to be addressed in future research and development efforts.

Download or read book Control of Diesel Particulate Matter in Underground Coal Mines written by Winthrop F. Watts and published by . This book was released on 1989 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Controlling Exposure Diesel Emissions in Underground Mines written by Marcel Talbot and published by . This book was released on 2016-04-01 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: The exposure of mine workers to diesel particulate matter (DPM) and gases is an issue of great concern to the underground mining community. As industry works to achieve compliance with these standards, mine operators are looking for feasible methods for reducing DPM concentrations in their mines. In addition, the industry needs methods to accurately measure DPM to ensure that the control strategies they adopt are working successfully. The use of dieselpowered equipment by the underground mining community has continuously increased over the last several decades. A similar trend is seen in underground metal/nonmetal mines. This extensive utilization of diesel-powered equipment generates the potential for exposure of underground miners to particulate matter and gaseous emissions from this equipment and creates an important challenge for the mining industry worldwide to control these emissions. In recent years, studies have shown that long-term exposure to combustionrelated fine particulate pollution, including diesel particulate matter (DPM), is an important risk factor for cardiopulmonary and lung cancer mortality. Therefore, health issues associated with exposure to DPM are receiving substantial attention from the public, government agencies, and academia. The book Controlling Exposure - Diesel Emissions in Underground Mines present an overview of the integrated approach and review the strategies being used by mines to reduce the concentrations of DPM emitted from the tailpipe, as well as present results from research evaluating these strategies.

Download or read book Mine wide Diesel Particulate Matter DPM Monitoring Applications written by William Kofi Asante and published by . This book was released on 2014 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diesel engine usage in mining operations contributes to high productivity. The downside is the exposure of workers to a mixture of gases and particulate contaminants in the working environment, a concern to occupational health and safety. DPM in the ventilation air is a critical pollutant adversely affecting the health of underground mine workers. DPM is considered a human carcinogen. This thesis presents a new way of characterizing DPM concentration in underground mines by the application of a new numerical modeling technique. The transport of DPM from diesel exhaust emission is modeled using a mine ventilation transport model with calibrated dispersion coefficients. The method focuses on mass balance, starting with the source term of the diesel engine estimated from tailpipe emission concentration and fuel consumption data. The source term is input to the DPM transport model to predict concentrations mine-wide, as well as in production zones. The proposed method is applied to an operating mining example. The model results are presented and compared with field measurement.

Download or read book Real time Diesel Particulate Matter Monitoring in Underground Mine Atmospheres Association with the Standard Method and Related Challenges written by Muhammad Usman Khan and published by . This book was released on 2017 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: "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 of DPM variations over time. However, real-time DPM monitors do not inherit these limitations. Biodiesel is often used as a substitute for regular petroleum-diesel because of its ability to emit less DPM. However, accuracy of available real-time DPM monitors has not been determined in mines using 70% to 99% (high-percent) biodiesel. The present research addresses this need by rigorous testing of a commercial real-time DPM monitor against the NIOSH 5040 method in active underground metal mines using high-percent biodiesel. The real-time DPM monitor was used to collect transient DPM data at mines' work faces, in exhaust air and intake air drifts. The extensive amount of data is characterized by use of Frequency Distribution (FD) models. The collected data revels strong variations in local DPM levels and suggests that attention to DPM area concentrations would provide a valuable complement to the miners' personal DPM exposure determinations. The results also highlight the potential importance of monitoring miners' short term DPM exposure. The measured data also revels the significance of DPM recirculation by auxiliary fan and ventilation duct systems. This research uses a 2D CFD model to examine stope ventilation parameters for a dead-end mine entry and identifies improved ventilation practices for efficient ventilation. Lastly, good work practices for the real-time DPM monitor (FLIR Airtec) used in this research are suggested"--Abstract, page iii.

Download or read book Effectiveness of Selected Diesel Particulate Matter Control Technologies for Underground Mining Applications written by and published by . This book was released on 2006 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Diesel Emissions Exposure Measurements in Underground Mines written by Barbara Zielinska and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The overall objective of this project is to develop a mentod to accurately quantify the exposure of underground mines to diesel particulate matter (DPM), respirable dust, and oil mist concentrations."--page vii.

Download or read book Diesels in Underground Mines written by and published by . This book was released on 1992 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Diesels in Underground Mines written by and published by . This book was released on 1987 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Diesels in Underground Mining written by J. H. Daniel and published by . This book was released on 1984 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Diesel Aerosols and Gases in Underground Mines written by Department of Health and Human Services and published by CreateSpace. This book was released on 2013-10 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diesel engines are a major contributor to concentrations of submicron aerosols, CO, CO2, NOX, SO2 and hydrocarbons (HC) in underground coal and metal/nonmetal mines. The extensive use of diesel-powered equipment in underground mines makes it challenging to control workers' exposure to submicron aerosols and noxious gases emitted by those engines. In order to protect workers, mines need to establish a comprehensive program based on a multifaceted and integrated approach. This program should include a concerted effort to: Curtail emissions of the diesel particulate matter (DPM) and toxic gases at the source; Control pollutants after they are released in the underground mine environment; and Use administrative controls to reduce exposures of underground miners to pollutants. Many of the technologies and strategies available to the coal and metal/nonmetal underground mining industries to control exposures of underground miners to diesel pollutants are similar. However, the differences in the U.S. regulations limiting DPM exposures of miners in underground underground coal mines [66 Fed. Reg. 27864 (2001)] and metal/nonmetal mines [71 Fed. Reg. 28924 (2006)] have a major bearing on how those technologies and strategies are implemented. In underground coal mines, achieving compliance is based on implementing technologies developed to control DPM and gaseous emissions directly at their source and providing sufficient quantities of fresh air to dilute criteria gases emitted by diesel engines [61 Fed. Reg. 55411 (1996)]. In contrast, the metal/nonmetal performance-based regulations enforce personal exposure limits (PEL) and provide much more latitude in the selection of technologies and strategies to control miners' exposures to DPM and gases [MSHA 2008]. The effort to reduce the exposure of underground miners to diesel pollutants requires the involvement of several key departments of mining companies, including those responsible for health and safety, engine/vehicle/exhaust aftertreatment maintenance, mine ventilation, and production, as well as the departments responsible for acquiring vehicles, engines, exhaust aftertreatment systems, fuel, and lubricating oil. Due to the complexity of this problem and the involvement of personnel from various departments in an underground mine, a program coordinator is crucial to the success of diesel control programs. The diesel pollutants control program plan and execution of this plan should be dynamic and based on information gathered through surveillance efforts. This surveillance should include gathering information on parameters pertinent to planning, execution, and coordination of the program (e.g., size of the diesel-powered fleet, role of diesel-powered equipment in the mining process, type of engine emissions, contribution of diesel-powered equipment to exposure of underground miners to DPM and criteria gases, quality of diesel fuel and lubricating oil, and ventilation supply and demand). Surveillance efforts should also help to identify and quantify the extent of the problem, identify and evaluate potential solutions, and identify and establish a hierarchy of potential solutions. The adopted solutions should be instituted and implemented in a manner that takes the costs and benefits into consideration. The surveillance efforts should be continued throughout the implementation phase of the program, and the results should be used to constantly re-evaluate the effectiveness of the program and adjust actions accordingly. Establishing a hierarchy of solutions is critical to the success of a multifaceted diesel pollutants control program.

Download or read book Review of Technology Available to the Underground Mining Industry for Control of Diesel Emissions written by George H. Schnakenberg and published by . This book was released on 2002 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Diesel Particulate Matter Exposure of Underground Metal and Nonmetal Miners Us Mine Safety and Health Administration Regulation Msha 2018 Edition written by The Law The Law Library and published by Createspace Independent Publishing Platform. This book was released on 2018-11-07 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diesel Particulate Matter Exposure of Underground Metal and Nonmetal Miners (US Mine Safety and Health Administration Regulation) (MSHA) (2018 Edition) The Law Library presents the complete text of the Diesel Particulate Matter Exposure of Underground Metal and Nonmetal Miners (US Mine Safety and Health Administration Regulation) (MSHA) (2018 Edition). Updated as of May 29, 2018 This final rule revises the May 20, 2006 effective date of the diesel particulate matter (DPM) final concentration limit of 160 micrograms of total carbon (TC) per cubic meter of air (160 TC μg/m 3) promulgated in the 2001 final rule "Diesel Particulate Matter Exposure of Underground Metal and Nonmetal Miners," and published in the Federal Register on January 19, 2001 (66 FR 5706) and amended on September 19, 2005 (70 FR 55019). This book contains: - The complete text of the Diesel Particulate Matter Exposure of Underground Metal and Nonmetal Miners (US Mine Safety and Health Administration Regulation) (MSHA) (2018 Edition) - A table of contents with the page number of each section

Download or read book Effectiveness of Selected Diesel Particulate Matter Control Technologies for Underground Mining Applications written by Centers for Disease Control and Prevention and published by CreateSpace. This book was released on 2013-11-30 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: The National Institute for Occupational Safety and Health designed and conducted a study in an underground metal mine to assess the effects of selected diesel emissions control technologies on the concentrations of diesel particulate matter and gases in underground mine air.

Download or read book Analysis of Diesel Particulate Matter Flow Patterns in Different Ventilation and Operational Conditions of Underground Mines written by Ramakrishna Morla and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diesel-operated vehicles are commonly used by personnel in underground mines. Although these vehicles facilitate travel within the mine, their main disadvantage is that they generate diesel particulate matter (DPM), a known carcinogenic agent. This calls for research to control the spread of DPM in underground mines in order to ensure the safety of mine personnel. In this article, the flow patterns of DPM generated by two types of diesel-operated vehicles are modeled using computational fluid dynamics (CFD) simulations. The simulation results are validated using field experimental measurements. The models show that if the vehicle is stationary, DPM particles are dispersed towards the center of the gallery and occupy the entire cross section of the road way. Vehicle movement induces air currents that may result in the miners being exposed to high DPM concentrations. The results show that if the DPM and the intake air counter-flow (flow in opposite directions), the DPM spread occurs throughout the entire cross-section of the roadway. This research is expected to contribute to the formulation of effective DPM control strategies in underground mines.

Download or read book Detecting Diesel Particulate Matter Using Real Time Monitoring Under the Influence of an Exhaust Fan System written by Yasir Helal Alghamdi and published by . This book was released on 2015 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Diesel Particulate Matter (DPM) is a complex mixture of diesel exhaust gas that consists of carbon, ash, metallic abrasion particles, sulfates and silicates. The diesel soot particle includes a solid core made of elemental carbon, and organic carbon compound attached to the surface of the soot particle. The main source of DPM is diesel exhaust gas. The National Institute for Occupational Safety and Health (NIOSH) and the Environmental Protection Agency (EPA) have determined that DPM is the source of most of the emissions of carbon monoxide, carbon dioxide, oxide of nitrogen, and hydrocarbons in underground coal, metal and non metal mines. It has become a significant health issue, particularly in underground mines where diesel engines are more active in confined areas. The studies have shown that exposure to DPM is the main risk for lung cancer and other lung diseases. Providing an accurate underground ventilation plan can help to dilute the concentration of emissions. Diesel particulate matter should be monitored constantly to ensure it does not exceed MSHA's emission standards. This paper will show the behavior of diesel exhaust emission under the influence of exhaust fan with different speeds, and how the DPM can be detected by using a real time personal sampler. The experiment was conducted in the experimental mine at Missouri University of Science and Technology (MS&T). It is shown that there is a variance of the concentration of elemental carbon depending on the type of diesel source and the speed of exhaust fan. Understanding the relationship between the source and the ventilation system can give a better understanding of what ventilation plan is appropriate to keep the emission concentration as low as possible while taking into account the other affecting factors such as leakage. Some of the tests have not shown a good dilution of the gas but they can suggest other factors to be used for a high probability of reducing emissions. These other factors are recommended in this paper for more research"--Abstract, page iii.