Elsevier Oceanography Series, 27A Environmental Pollution, 1 Hydrocarbons Edited by RICHARD A. GEYER Department of Oceanography Texas A&M University College Station, TX 77843, U.S.A. ELSEVIER SCIENTIFIC PUBLISHING COMPANY Amsterdam4xford-New Y ork 1980 ELSEVIER SCIENTIFIC PUBLISHING COMPANY 335 Jan van Galenstraat P.O. Box 211,1000 AJI Amsterdam, The Netherlands Distributors for the United States and Canada: ELSEVIERmORTH-HOLLAND INC. 52, Vanderbilt Avenue New York, N.Y. 10017 (with 186 figures; 104 tables; and 795 references) Llbrary d Congma Cataloging In Pabllcetlon Data Main entry under title: Marine environmental pollution. (Elsevier oceanography series ; v. 27A- 1 Bibliography: v. 1, p. Includes index. CONTENTS: v. 1. Hydrocarbons. 1. Marine pollution. I. Geyer Richard A. GCl085. w85 574.5'2636 80-14362 ISBN 0-444-41847-4 (Elsevier/North-Holland : v. 1) 0 Elsevier Scientific Publishing Company, 198G All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical photocopy- ing, recording or otherwise, without the prior written permission of the publisher, Elsevier Scientific Publishing Company, P.O. Box 330, 1000 AH Amsterdam, The Netherlands Printed in The Netherlands To Anne, For all the valid reasons of which she is aware. PREFACE The definition of pollution with its many connotations can be found readily in any dictionary. In addition, each person has his or her own in- terpretation of the meaning of this many-faceted word. But, in general, the majority of these individual interpretations is based primarily on subjective and emotional, rather than objective criteria and facts. In addition, the defi- nitions generally carry negative connotations. However, there are certain environmental conditions which can be categorized as pollution in the strictest sense, but still the results, if pragmatic criteria are applied, can be demonstrated to be beneficial rather that deleterious. For example, cooling water necessary for the successful operation of a power plant is usually warmer than the ambient temperature of the body of water into which it is being discharged. In tropical areas and in the summer, in a portion of the temperate zones, this process might raise the temperature to the point where it exceeded optimum tolerance levels for a variety of marine organisms, in- digenous to the area. On the other hand, the polar regions and during the winter seasons in the temperate zones it would still increase the temperature of the water body such as an estuary or a lagoon above ambient. But, this action would actually be beneficial by increasing the rate of growth of the marine organisms. This is especially important economically for those species having commercial value, or are an important link in the food chain. Another difficulty with the use of the word pollution to descibe a specific environmental situation is that the question of the degree of pollution is always not immediately evident or defined. If it were to be defined as: “an anomalous concentration of any constituent comprising a given environ- mental system”, then the value of the ambient level must be known or agreed upon, before the term “anomalous” in the definition can have any significant meaning. To carry this concept one step further requires that valid baseline data for the concentration of each component must already be known and agreed upon, - “agreed upon”, by whom? - and for how long a period of time must these data be obtained to be significant? Still another constraint may be found in reaching a concensus as to the accuracy and repeatability with which an individual parameter must be observed. Further, there is still the important dimension of the gradient, or rate of change with time, in this concentration of a particular constituent. The actual quantitative difference between a “normal” and an “anomalous level” may not be as critical to the well-being of a marine organism, as the time required to get from an accepted baseline, or ambient level value, to one which can be agreed upon as being at a harmful level. Then again, - who and what are the ... Vlll qualifications of those who decide; and -whose decisions will, in turn, be accepted by whom? It is evident from this line of reasoning that many questions are raised and must be answered. Even more important, those answers must be generally accepted; and the problem involved in an actual or potential pollution situation be defined; and in turn must be solved to the satisfaction of a variety of persons and regulatory agencies. It should be emphasized however, that the difficulties described primarily involve the socalled “gray areas” .of the total pollution spectrum. These lie between conditions where most reasonably minded persons would agree that a state of pollution exists, in the generally accepted use of the term, in a given situation; to one where the concensus of the same group would be equally adamant that it does not exist. Again it is these gray areas in between, where subjectivity, rather than objectivity usually prevails in reaching a “valid” conclusion. It is with these difficulties and constraints in mind that criteria were established to bring together yet another series of chapters on the broad and provocative subject of pollution. Heretofore, most books on the subject emphasize the effects of certain types of pollutants in a given geographic area, or comprise the proceedings of a particular workshop or seminar. The latter is generally concerned with a specific pollutant and sponsored by a pertinent investigative or governmental regulatory agency, or an academic institution specializing in research areas, germaine to the problem. Rarely is a book available in which the information includes the results of an in- dustrial or group of industrial organizations. Therefore, it is the purpose of this book and its companion volume to bring together in a coordinated and thematic fashion the results of research of academic, governmental and industrial groups. The chapters in the two volumes describe research con- ducted over a broad and representative group of actual and potential pol- lutants which can or could have significant effects on life in the marine environment. It is important to gain a more definitive and at the same time objective understanding of the effects of a given pollutant on a marine ecological system; and to be made aware of this problem from as many perspectives as possible. Hence, after selecting the diverse types of representative pol- lutants to be discussed, efforts were made to obtain contributions from each of the three groups describing the results of their research efforts. It was not possible in every case to achieve this objective. However, the response was so great that it soon became apparent that it would be necessary to add a second volume for two reasons, if the chapters were to be presented in one book, it would become rather unwieldy, but for an even more important reason. The interest in hydrocarbons apparently is so great that there are sufficient chapters available to constitute a separate volume. It was, there- fore, decided to devote one volume to this subject, and the second one to the other categories of major types of potential and actual pollutants. These ix include a wide variety of materials associated with such diverse processes and activities as heavy metals, sewage, particulate matter, chlorinated hydro- carbons, thermal and other industrial effluents, as well as radioactivity and even cannery wastes. When the terns pollutant or pollution are used, it almost always carries the connotation of some material or process caused by the activities of man- kind, rather than by nature. This is indeed extremely unfortunate because the effects of pollution in the broadest sense caused by nature is generally many orders of magnitude greater. A very recent example of a major nat- urally occumng oil seep is described in Science, Vol. 205, 7 September 1979, pp. 999-1001 (G. R. Harvey et al.). It was discovered in the form of a weathered crude oil-rich layer of water about 1.5km wide extending for hundreds of kilometers. It was conservatively estimated to have involved a total of more than one megaton of hydrocarbons. This material was found at a depth of about 100m beneath the surface, with a thickness of over 100 m, starting in the eastern Caribbean, near Trinidad, and extending into the South Atlantic. It should be emphasized that this one event represents almost twice the value of 6*105t ons proposed by a Special Committee of the U. S. National Academy of Sciences for the total amount of naturally occumng petroleum hydrocarbons seeping into the world oceans each year. This is the reason for having two sections to Volume 1, one describing petroleum hydrocarbon pollution caused by nature, and the other by man- kind. For example, the role of nature in polluting the ocean with petroleum hydrocarbons has been a most active one extending throughout much of geologic time; and yet the oceans literally teem with all types of botanical and zoological forms of life. These have obviously adapted successfully in a wide variety of ways to the presence of these hydrocarbons, of Volume 1 as demonstrated in the chapters comprising Section A. Yet, the scientific literature on pollution is filled with terms such as “chronic,” “sub-lethal” and “cummulative.” These are used to justify the need for extensive long- term research to determine the effects of potential pollutants on various components of an ecological system. This is an example of the subjective and emotional reactions to the effects of possible pollution by a variety of substances. The emotional reactions can be demonstrated by a similar demand to study in great detail over a long period of time the effects not only of mud used in drilling offshore oil wells, but of various constituents of these muds. The mineral barite is an example. It also is given internally in large quantities every day to countless humans as a part of an accepted routine, medical, diagnostic method. In addition, the acceptable concentrations of barium (lppm) in drinking water approved by U.S. Public Health officials for human consumption is 30 times more than that found in drilling muds (0.03 ppm at 25O C)! Why is there not a comparable hue and cry by en- vironmentalists to reduce the amount of barium in drinking water consumed X by people to at least, if not less, than that which mollusks, corals, benthic and other forms of life in the ocean might be subjected to from drilling muds. Similarly, there has been much concern about the effects on the ecology of the floor of the ocean from mining manganese modules. Yet, it can be readily demonstrated that the effect on the bottom sediments and benthic organisms from a single turbidity current active only for a few hours is equivalent to about one hundred years of manganese mining in a given area. Extensive research at considerable expense also has been conducted on the effects of manganese mining on the possible generation of a “red-tide” and accompanying mass-mortality, became of possibly bringing to the surface excessive amount of nutrients. This remains to be demonstrated and again the volume of ocean water and sediments involved in manganese mining is miniscule in comparison. But, incidences of “red-tide” have resulted in the destruction of fish and and other types of marine life in amounts representing many number of orders of magnitude greater than the varied types of pol- lution that can be attributed to man. Similarly, the solids, liquids and gases, of which some have high radioactive levels, emanating from volcanic eruptions in and beneath the sea contribute tremendous amounts of pollutants of all types. These are but a few of the examples that could be cited to illustrate the fact that all too often reactions to pollution on the part of many people have been one of subjectivity rather than objectivity; and emotionalism over- coming logic to severely cloud reasonable perspectives in evaluating a given pollution situation. Hopefully, Volume 1 will help to put into better per- spective the respective roles of nature and man in the effects of petroleum hydrocarbons in marine environmental pollution; and the companion volume will accomplish the same purpose for those potential pollutants discussed therein. RICHARD A. GEYER GLOSSARY List of units used in this volume (effort has been made to use S.I. units except in those cases where units are strongly associated with the particular field of science discipline; to assist, the relations for converting to S.I. units are listed here) Area 4047 m2 Biological (colony forming units activity per liter) Concentration gAt. 1-' (gram atom per liter) M (molarity) N (normality) ppb (parts per billion) ppm (parts per million) PPt (parts per thousand) vol. % (per cent by volume) wt. % (per cent by weight) Energy cal . (calorie) 4.184 J (joule) eV (electron volt) 1.602*10-'9 J Length in. (inch) 0.02452 m (meter) ft. (foot) 0.3048 m Yd. (yard) 0.9144 m mi. (mile) 1609 m fathom (nautical fathom) 1.8288 m n.m. (nautical mile) 1852 m mol (mole) lb. (pound avoirdubois) 453.6 g (gram) t (metric ton) lo6 g ton (long ton) 1.016*106 g Pressure atm. (atmosphere ) 1.013.105 Pa (pascal) bar lo5 Pa lb. in-' (pound-force per 6.295*103 Pa square inch) Radioactivity Ci (curie) Temperature OC (degree Celsius) K (kelvin) O F (degree Fahrenheit) T('F) = 1.8T('C) -k 32 Time min. (minute) 60 s (second) hr. (hour) 3600 s day 86,400 s Yr. 3.16*107s Velocity kt. 0.5015 m s-l xii Volume bbl (barrel) 0.1590 m3 gal. (gallon) 0.003785 m3 I (liter) m3 S.I. unit prefixes n (nano) 10 -9 P (micro) 10 -6 m (milli) 10 -3 C (centi ) 10 -2 k (kilo) lo3 M (mega 1 lo6 C (&a 1 lo9 LIST OF CONTRIBUTORS TO THIS VOLUME Dr. Bernie B. Bernard Dr. Richard A. Geyer School of Geology and Geophysics Department of Oceanography University of Oklahoma Texas A & M University Norman, OK 73069, U.S.A. College Station, TX 77843, USA. Dr. Thomas J. Bright Dr. Charles P. Giammona Department of Oceanography New Jersey Marine Sciences Texas A & M University Consortium College Station. TX 77843, USA. Sandy Hook Field Station Fort Hancock, NJ 07732, U.S.A. Dr. Lewis R. Brown Mississippi State University Dr. Howard R. Gould Mississippi State, MS 39762, U.S.A. Exxon Production Research Company P.O. Box 2189 Dr. Paul H. Davis Houston, TX 77001, USA. Lawrence Livermore Laboratory University of California Dr. J. Harold Hudson P.O. Box 808 US. Geological Survey Livermore, CA 94550, U.S.A. Fisher Island Station Miami Beach, FL 33139, U.S.A. Larry Day Marine Sciences Institute Dr. Lela Jeffrey University of Texas Department of Oceanography P.O. Box 368 Texas A & M University Port Aransas, TX 75373, U.S.A. College Station, TX 77843, U.S.A. Catherine Duncan Dr. C. B. Koons Marine Sciences Institute Exxon Production Research University of Texas Company P.O. Box 368 P.O. Box 2189 Port Aransas, TX 75373, U.S.A. Houston, TX 77001, U.S.A. Dr. Ibavid A. Gettleson Carol K. Lee Continental Shelf Associates Inc. U.S. Geological Survey P.O. Box 3609 Fisher Island Station Tequesta, FL 33458, USA. Miami Beach, FL 33139, USA.