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underground coal and M NM mines are addressed, respectively, in Sections III..b and III..c. Hearings concerning the proposed rule for underground coal mines had been properly attended, together with representatives from both the coal and steel and nonmetal sectors. Testimony was presented by individual miners, representatives of miners, mine operators, mining trade associations, representatives of engine and equipment manufacturers, and one particular person producer. Members of the mining group collaborating had an in depth opportunity to listen to and respond to different views; some participated in several hearings. They also had a possibility to trade in direct dialogues with the members of MSHA’s dpm rulemaking committee responding to questions and asking questions of their own. There was in depth remark not solely about the provisions of the proposed rule itself, but culture of the native hawaiians all over printing hawaiian shirt additionally about the want for diesel powered gear in this sector, the dangers related to its use, the necessity for regulation on this sector, various approaches including those on which MSHA sought remark, and the technological and financial feasibility of assorted options. MSHA also explored whether or not to allow using administrative controls rotation of personnel and private protecting gear respirators to cut back the diesel particulate exposure of miners. It is mostly accepted industrial hygiene apply, nevertheless, to remove or minimize hazards on the source earlier than resorting to non-public protective gear. Moreover, such a practice is generally not thought of acceptable in the case of carcinogens since it merely places extra employees at risk. Accordingly, the proposal explicitly prohibited using such approaches, besides in those limited instances the place MSHA approves, as a result of technological constraints, a -year extension for an underground metallic and nonmetal mine on the time to adjust to the final focus limit. It is our opinion that though there are some information suggesting a small extra danger of opposed well being results related to exposure to diesel exhaust, these knowledge usually are not compelling sufficient to exclude diesels from underground mines.
In instances the place diesel gear is utilized in mines, controls should be employed to minimize exposure to diesel exhaust. As mentioned throughout this part, the Federal authorities has labored carefully with the mining neighborhood to establish whether or not and how diesel-powered equipment might be used safely and healthfully in this trade. As the proof started to develop that exposure to diesel exhaust could be dangerous to miners, notably in underground mines, formal company actions had been initiated to research this chance and to determine what, if any, actions may be applicable. These actions, including a variety of non-regulatory initiatives taken by MSHA, are summarized here in chronological sequence. As famous earlier on this part, the Federal authorities has long been involved in efforts to limit diesel particulate emissions into the environment each by way of ambient air quality requirements, and thru restrictions on diesel engine emissions. While MSHA’s actions to limit the focus of dpm in underground mines are the first effort by the Federal authorities to deal with the special dangers faced by workers exposed to diesel exhaust on the job, a number of states have already taken actions in this regard with respect to underground coal mines. Impact of the diesel gear rule on dpm levels in underground coal mines. The diesel gear rule has many options which, by reducing the emission and concentration of dangerous diesel emissions in underground coal mines, will indirectly scale back particulate emissions. Fuel. The diesel equipment rule also requires that underground coal mine operators use diesel gasoline with a sulfur content material of zero. or less. Some types of exhaust aftertreatment technology designed to decrease hazardous diesel emissions work more successfully when the sulfur content of the gas is low.
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