Document YjEjRpwy6rdYRJ7RDMrmO86gk

1V. l withdrawn' Copyright 1948, 1958 by INTERSCIENCE PUBLISHERS, INC. Library of Congress Catalog Card Number 58-9220 10 9 8 7 6 ISBN 0 470 67155 6 PRINTED IN THE UNITED STATES OP AMERICA vfft'dU bPisili {.(IT is 454165 withdrawn PREFACE to the Second Edition, Volume I lH' rfit,.. Major changes in emphasis in this revision are found in the subjects of Noise, Heat, Ionizing Radiation, Human Engineering and Industrial Safety, Sanitation, Air Pollution, and Illumination. Noise and its environmental implications have assumed a degree of impor tance that warrants a chapter devoted exclusively to the subject. Heat and its control have received much attention in industrial hygiene circles in recent years, and technplogy concerning the conditioning of air for health and comfort is much in demand. The subject is of sufficient importance to warrant four chapters dealing with the various phases of the problem, including Air Conditioning/ Air Cleaning, Ventilation, and Heat Control in the Hot In dustries. With the rapidly growing application of radioisotopes and the. peacetime uses of nuclear power, the recognition, evaluation, and control of ionizing radia tion exposures and the inhalation and ingestion of radioactive gases and aerosols g-assume industrial importance comparable to those of other highly hazardous environmental contaminants. Industrial hygienists will find it increasingly necesIf sary to acquire a working knowledge in radiation hygiene. Health physicists as they enter industrial work environments will find it increasingly necessary to ^' recognize the health problems attending other physical forces--such as sound, meat, and light--chemical contaminants, and all the harmful environmental'situa||fions with which industrial employees may come in contact. Natural and irre.Jistible forces work against clannishness and toward efficient and expedient " methods of competently protecting the employees' health and safety. Human Engineering and Industrial Safety. To develop the best possible ad justment between man and his j ob is a fringe interest because methods engineering jpl-maehine design-must-take ..into , account, certain.. engineering, ..bidlogical, and ^environmental facts commonplace to the industrial hygiene discipline. W* Industrial Sanitation, another fringe interest, deals with 'problems not in'herent in the manufacturing process and needs to be drawn into ajj&rper focus deIHISWwfefining its relation t.n the field of health engineering and, therefore, a dhapter to ' ' ' H' this end has been included. Air Pollution involves industrial hygiene because the contaminants in the Ipi air of the community are the base line upon which any indoor-contamination jgjf studies or control programs must be built. In many cases pollutants must fee , removed from air before, admitting it to the plant environment. Likewise, stack v