2 edition of Control technology for worker exposure to coke oven emissions found in the catalog.
Control technology for worker exposure to coke oven emissions
John W. Sheehy
1980 by Dept. of Health, Education, and Welfare, Public Health Service, Center for Disease, National Institute for Occupational Safety and Health, Division of Physical Sciences and Engineering, for sale by the Supt. of Docs., U.S. Govt. Print. Off. in Cincinnati, Ohio, Washington .
Written in English
|Statement||John W. Sheehy.|
|Series||NIOSH technical report, DHEW (NIOSH) publication -- no. 80-114., DHEW publication -- no. (NOISH) 80-114.|
|Contributions||National Institute for Occupational Safety and Health. Division of Physical Sciences and Engineering.|
|The Physical Object|
|Pagination||vi, 29 p. :|
|Number of Pages||29|
In FIG. Get medical attention immediately. The ability of known chemical carcin- ogens to transform cells in culture was confirmed by DiPaolo et al a. In a later retrospective study of the incidence of cancer of the lung and larynx in England and Wales from toKennaway and Kennaway noted an excess lung cancer mortality among British gas workers and other coal carbonization and by-product workers. Thus different types of coal are proportionally blended to reach acceptable levels of volatility before the coking process begins. The problem of controlling charging emissions in byproduct coking ovens is discussed in U.
Almost all of this in- crease was due to a fold risk of lung cancer for full-time top-side workers 15 vs. When the hood is advanced, suitable controls such as a limit switch, not shown, are actuated to automatically actuate the fluid cylinder to move the valve assembly to directly connect the interior of the hood with the air cleaner The problems are addressed systematically in the following analysis. Coke oven workers; 2. Some facilities have "by-product" coking ovens in which the volatile decomposition products are collected, purified and separated for use in other industries, as fuel or chemical feedstocks.
Apparatus according to claim 10 including means for separating gases from the flushing fluid after passage through the ejector and for returning such gases to the hydraulic main. Comparison of the lower relative mortality of gas retort workers reported by Doll, with data in an ongoing long-term study e. In the past 25 years considerable progress has been made in developing organ-specific bioassay techniques, in understanding damage to host defenses against toxic agents, and in exploring the metabolic activation of environmental carcinogens Hoffmann and Wynder, Oven 10 has an elongated coking chamber 12 having its opposed open ends normally closed by doors 14, When rats were exposed to the irritant SO- alone, they developed hyperplastic and metaplastic 13 aberrations. Indications of carcinogenicity refer to NAS
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Coke oven emissions consist of a complex mixture of sub- stances that are etiologically implicated in increased mortality from a variety of malignant and nonmalignant diseases among various populations of workers exposed to them for varying lengths of time.
Elution of PAH's from swallowed particle-contaminated mucus may also explain the diverse sites of cancer associated with exposure to coke oven emissions. The above mentioned coal carry-over into the gas main is not fully removed from the gas stream by the normal flushing liquor sprays and unacceptably high concentrations of coal are found in the secondary tar, i.
Valve 10 is open when valve 3 is open and these valves i. Thereafter, doors 14 and 16 will be replaced and the machine 18 advanced to position the charging conveyor in front of the empty oven. There were a number of local manufacturers of coal tar sealer in the Buffalo area and several sources of the coal tar were used as the base for the final product.
In the atmosphere, polycyclic Table 1. The effluent mixture itself varies with temperature of carbonization, the higher temperatures apparently leading to a more carcinogenic mixture.
Sati Mazumdar Department of Bio Statistics Graduate School of Public Health University of Pittsburgh Pittsburgh, Pennsylvania Review copies of this document were also provided to other government agencies and to industrial and public interest groups, as the result of a notice that appeared in the Federal Register, Vol.
It is the current EPA standard for all polluting sources that fall under the New Source Review guidelines and is determined on a case-by-case basis.
The cohorts at the 10 additional plants included all men who had worked at the oven at any time in the 5-year period through When fluid cylinders 64 are actuated to move frame 60 and hood 50 toward the ovens, cables 68, 70 will permit wall 66 to move downwardly by gravity a distance substantially twice the distance the frame and hood are moved.
A favored hypothesis for the development of neoplasms is that they arise as a consequence of somatic mutations. When the oven is completely charged, conveyor 34 is withdrawn and the door handler 32 is employed to reinstall the door to seal the oven.
Topside jobs included the lid man, larry car driver, tar chaser, and maintenance worker; side battery jobs included the door cleaner and pusher man, among others.
Evaluations of employee exposures as 8-hour Time Weighted Averages, minute Short Term Exposure Limits, and instantaneous area samples. Shabad induced bron- chogenic carcinomas in rats using dimethylbenzanthracene DMBA on black ink powder. The Askania valve ensures a pressure slightly above atmospheric in the hydraulic main.
During the charging operation the oven is connected to the charging main 4 by opening valve 3 and closing valve 2. We can only guess at the combined toxic potential of the several components as they occur in coke oven emissions.
Particles rang- ing from 0.Effects of Coke Oven Emissions and Benzo[a]pyrene on Blood Pressure and Electrocardiogram in Coke Oven Workers Article (PDF Available) in Journal of Occupational Health 59(1) · November with.
Sep 26, · The list of air toxics includes pesticides, metals, organic chemicals, coke oven emissions, fine mineral fibers, and radionuclides. The EPA is required to add to this list pollutants that may be shown to present, through inhalation or other routes of exposure, a threat of adverse effect on human health or the environment.
Apr 21, · Emission Inventory. An emission inventory is a list of the amount of pollutants from all sources entering the air in a given time period. The boundaries of the area are fixed.
The tables of emission inventory are very useful to control agencies as well as planning and zoning agencies. Costs and Benefits of Coke Oven Emission Controls. Authors; Authors and affiliations (). Coke Oven Emissions from Wet-Coal Charged By-Product Coke Oven Batteries: Background Information and Proposed Standards.
John D. and D.R. Holtgrave (). “Coke Oven Emissions: A Case Study of Technology-Based Regulation,” Risk-Issues in Cited by: 2. coke-oven emissions from studies in experimental animals.
Exposure to coke-oven emissions caused tumors in two rodent species, at two different tissue sites, and by two different routes of exposure.
Coke-oven emission samples applied weekly to the skin of mice for up to 52 weeks caused skin cancer, and. Best available technology or "BAT" means any combination of work practices, A baghouse will control emissions from the coke screening and crushing facilities.
Information about air pollution controls is presented, by pollutant, in the following It applies to coke oven emissions from the main stacks and from the individual waste heat stacks.