Mutagenicity of Diesel Exhaust Particulate Matter in Mining Operations PDF Download
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Author: Mridul Gautam
Publisher:
ISBN:
Category : Diesel exhaust
Languages : en
Pages : 10
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Book Description
Author: Mridul Gautam
Publisher:
ISBN:
Category : Diesel exhaust
Languages : en
Pages : 10
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Book Description
Author: Aleksandar D. Bugarski
Publisher: SME
ISBN: 0873353609
Category : Technology & Engineering
Languages : en
Pages : 503
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Book Description
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.
Author: B. T. McClure
Publisher:
ISBN:
Category : Diesel motor exhaust gas
Languages : en
Pages : 22
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Book Description
Author: Winthrop F. Watts
Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 20
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Book Description
Author: Muhammad Usman Khan
Publisher:
ISBN:
Category :
Languages : en
Pages : 197
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Book Description
"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.
Author:
Publisher:
ISBN:
Category : Diesel motor exhaust gas
Languages : en
Pages : 144
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Book Description
Author: George H. Schnakenberg
Publisher:
ISBN:
Category : Diesel motor
Languages : en
Pages : 64
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Book Description
Author: William Kofi Asante
Publisher:
ISBN:
Category : Electronic books
Languages : en
Pages : 178
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Book Description
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.
Author:
Publisher:
ISBN:
Category : Carcinogens
Languages : en
Pages : 46
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Book Description
Presents recent information on the potential carcinogenicity of diesel exhaust. Included are discussions of recent animal studies that confirm the relationship between cancer and exposure to whole diesel exhaust. Also discussed is epidemiologic evidence that associates lunger cancer with occupational exposure to diesel engine emissions. On the basis of the results of these studies, NIOSH recommends that whole diesel exhaust be regarded as a potential occupational carcinogen in conformance with the OSHA Cancer Policy (29 CFR 1990).
Author: Marcel Talbot
Publisher:
ISBN: 9781681174549
Category :
Languages : en
Pages : 278
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Book Description
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.
