Введение в радиоэкологию
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Тематика:
Отраслевая и прикладная экология
Издательство:
Томский политехнический университет
Год издания: 2014
Кол-во страниц: 356
Дополнительно
Вид издания:
Учебное пособие
Уровень образования:
ВО - Магистратура
ISBN: 978-5-4387-0429-4
Артикул: 643321.01.99
Цель пособия - подготовить магистрантов к активному общению на
профессионально ориентированные темы в рамках направления подготовки.
Большое внимание уделяется развитию умений и навыков говорения и
аудирования на темы, связанные с историей изучения радиоактивности, с
проблемой распространения радионуклидов и радиологическим состоянием
окружающей среды. Тексты составлены на основе аутентичной учебной и
научной литературы.
Предназначено для магистрантов ИПР с уровнем языковой подготовки
Intermediate, специализирующихся в области геоэкологии, радиоэкологии и
освоения месторождений радиоактивного сырья. Может использоваться как
для аудиторной, так и для самостоятельной работы.
Тематика:
ББК:
УДК:
ОКСО:
- ВО - Магистратура
- 05.04.01: Геология
- 05.04.06: Экология и природопользование
- 45.04.02: Лингвистика
ГРНТИ:
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Фрагмент текстового слоя документа размещен для индексирующих роботов
TOMSK POLYTECHNIC UNIVERSITY L.V. Nadeina, L.P. Rikhvanov INTRODUCTION TO RADIOECOLOGY Recommended by the Board of Educational Methodological Association on linguistics of Ministry of Education and Science of the Russian Federation as English language manual for master students making special study of geoecology, radioecology and radioactive raw materials development Tomsk Polytechnic University Publishing House 2014
МИНИСТЕРСТВО ОБРАЗОВАНИЯ И НАУКИ РОССИЙСКОЙ ФЕДЕРАЦИИ Федеральное государственное автономное образовательное учреждение высшего образования «НАЦИОНАЛЬНЫЙ ИССЛЕДОВАТЕЛЬСКИЙ ТОМСКИЙ ПОЛИТЕХНИЧЕСКИЙ УНИВЕРСИТЕТ» Л.В. Надеина, Л.П. Рихванов ВВЕДЕНИЕ В РАДИОЭКОЛОГИЮ Рекомендовано Учебно-методическим объединением по образованию в области лингвистики Министерства образования и науки Российской Федерации в качестве учебного пособия по английскому языку для магистрантов, специализирующихся в области геоэкологии, радиоэкологии и освоения месторождений радиоактивного сырья Издательство Томского политехнического университета 2014
УДК 539.19(075.8) ББК 22.383я73 Н17 Надеина Л.В. Н17 Введение в радиоэкологию: учебное пособие / Л.В. Надеина, Л.П. Рихванов; Томский политехнический университет. – Томск: Изд-во Томского политехнического университета, 2014. – 356 с. ISBN 978-5-4387-0429-4 Цель пособия – подготовить магистрантов к активному общению на профессионально ориентированные темы в рамках направления подготовки. Большое внимание уделяется развитию умений и навыков говорения и аудирования на темы, связанные с историей изучения радиоактивности, с проблемой распространения радионуклидов и радиологическим состоянием окружающей среды. Тексты составлены на основе аутентичной учебной и научной литературы. Предназначено для магистрантов ИПР с уровнем языковой подготовки Intermediate, специализирующихся в области геоэкологии, радиоэкологии и освоения месторождений радиоактивного сырья. Может использоваться как для аудиторной, так и для самостоятельной работы. УДК 539.19(075.8) ББК 22.383я73 Рецензенты Доктор философских наук, доцент ТГУ В.М. Смокотин Кандидат филологических наук, доцент ТГПУ Е.А. Крюкова Доктор технических наук, профессор ТПУ В.И. Косинцев ISBN 978-5-4387-0429-4 © ФГАОУ ВО НИ ТПУ, 2014 © Надеина Л.В., Рихванов Л.П., 2014 © Оформление. Издательство Томского политехнического университета, 2014
UNIT I INTRODUCTION TO RADIO`ECOLOGY I. WARMING-UP Look at the picture and answer the following questions: The interest in radioecology increased after the Chernobyl accident in 1986 when large parts of some countries were contaminated with radioactive fallout. a) What is the man doing now? b) Why is he doing this? c) How often does he do this? Fig. 1. Collecting water for testing in laboratory
II. PRE-READING TASK 1. Guess the meaning of the words and remember the pronunciation. ecology [ı:ĸɔǀəʤı] radioactive [̗reıdıəu´æĸtıv] substance [´sʌbst₍ə₎ns] migration [maı´greıʃ₍ə₎n] ecosystem [͵ı:kəu´sıstəm] aspect [´æspekt] concept [´kɔnsept] radiation [͵reıdı´eıʃ₍ə₎n] protection [prə´tekʃ₍ə₎n] dose [dəus] human [´hju:mən] radionuclide [ˏreıdıəu´nju:klaıd] ion [´aıən] discipline [´dısəplın] effect [ı´fekt] risk [rısk] bomb [bɔm] stratosphere [´strætə͵sfıə] 2. Match the English word combinations to the Russian equivalents. 1. key event a) взаимодействовать с природой 2. to interact with nature b) перемещение веществ 3. huge amounts of radionuclides с) прогнозирующая имитационная модель 4. substances migration d) основные, традиционные области 5. the first test of nuclear bombs е) радиационная защита 6. the predictive simulation model f) основание для оценки доз 7. to be concerned with g) последствия радиоактивного загрязнения 8. basic traditional fields h )взаимодействие организмов с радионуклидами 9. risk assessment i) источники ионизирующего излучения 10. radiation protection j) влияние радиации 11. man-made radioactive pollution k) радиоактивное загрязнение среды, вызванное деятельностью человека 12. basis for estimating doses l) оценка риска 13. impacts of radiation m) иметь дело с чем-либо 14. the consequences of radioactive pollution n) первое испытание атомных бомб 15. sources of ionizing radiation о) огромные количества радионуклидов 16. interaction of organisms with radionuclides p) ключевое событие
3. Read the text «What is radioecology?» and pay attention to the terms in bold. What is radioecology? Radioecology is a branch of ecology which studies how radioactive substances interact with nature, how different mechanisms affect the substances migration and uptake in food chain and ecosystems. Investigations in radioecology might include aspects of field sampling, designed field and laboratory experiments and the development of predictive simulation models. This science combines techniques from some of the more basic traditional fields, such as physics, chemistry, mathematics, biology and ecology, with applied concepts in radiation protection. Radioecological studies form the basis for estimating doses and assessing the consequences of radioactive pollution for human health and the environment. This particular branch of ecology studies interactions of organisms and ecosystems with radionuclides and ionizing radiation. Such a study focuses on pathways of radionuclides in the environment and it also investigates sources and strength of ionizing radiation in natural ecosystems. So this scientific discipline includes everything that matters as to environmental and biological impacts of radiation. The fields of application are broad; they range from natural radiation to man-made radioactive pollution. The study of natural processes, such as the incorporation of radionuclides into body mass, community webs and community food chains, and technological applications, such as those that deals with radioprotection and risk assessment are both important for the development of the field. Radioecology is related to radiobiology. But in radiobiology one studies the biological effects of radiation on organisms. The ecosystem concept suggests that radioecologists should be concerned with that affect whole ecosystems. Their concern is not only with risks for human health. They are searching for protection in a broader sense, considering whole ecosystems. Radioecology is a science that came up after the first tests of nuclear bombs. One wanted to know how this discharge of huge amounts of radionuclides into the stratosphere would affect ecosystems and their communities and food chains. The Chernobyl Disaster 1986 was another key event that sparked new studies in the field of radioecology. (Wikipedia. The free encyclopedia. http://www.wikipedia.org/)
III. TERMINOLOGY DEVELOPMEMT 1. Fill in the gaps with the correct prepositions. 1) radioactive substances interact _____ nature; 2) the consequences ___ radioactive pollution _____ human health; 3) study focuses _____ pathways of radionuclides; 4) sources and strength _____ ionizing radiation ______ natural ecosystems; 5) range ______ natural radiation _____ man-made radioactive pollution; 6) the incorporation ______ radionuclides _____ body mass; 7) deals ______ radioprotection and risk assessment; 8) the biological effects _____ radiation ______ organisms; 9) be concerned ______; 10) important ______ the development _____ the field; 11) this discharge ______ huge amounts _____ radionuclides _____ the stratosphere; 12) new studies _______ the field _____ radioecology. 2. Match the definition with the following terms. 1. radioactive wastes a) is the uncontrolled distribution of radioactive material in a given environment 2. acute radiation exposure b) is the distribution of radioactive contamination by a nuclear explosion 3. chronic exposure c) is a form of damage to organ tissue due to excessive exposure to ionizing radiation 4. radioecology d) is the study of the biological effects of radiation on organisms 5. internal exposure e) is a unit of absorbed radiation dose defined in terms of the energy actually deposited in the tissue 6. external exposure f) is exposure which occurs when the radioactive source is outside the organism which is exposed 7. rad g) is when the radioactive material enters the organism, and the radioactive atoms become incorporated into the organism 8. radiobiology h) is the study of the pathways of radionuclides in the environment and their impact on biota 9. radiation poisoning i) is exposure to ionizing radiation over an extended period of time 10. nuclear fallout j) is an exposure to ionizing radiation which occurs during a short period of time 11. radioactive contamination k) are waste products containing radioactive materials
3. Read the following text and fill in the missing words and word combinations. approximately; global scale; contamination; radioactive isotopes; rotation of radionuclides; radiosensitivity; irradiated populations; agriculture, cardinal principles; natural background; long-lived radionuclides; stock-breeding Radiation ecology is a branch from two independent scientific discipline, such as general radiobiology and ecology. This is rather a young scientific direction, which has gained particular relevance after mass testing of atomic weapons. By then it was become comprehensible, that 1) ________ by radionuclides was occurring not on the local level (nuclear test areas, industrial places of atomic industry enterprises), but brings to consequences of 2) ________. By this, basically, are defined 3) _____________ of the given science, which is considered in studying of distribution, migration and 4) ____________ in the biosphere as well as by influence of ionization radiation on ecological systems. Certainly, in natural conditions organisms are irradiated for the account of natural background of ionization radiation, which is caused by radiation of 5) ____________ in lithosphere, hydrosphere and atmosphere, and by cosmic radiation. Radiation rate is determined by the 6) ___________ in the biosphere, so it is rather small, 7) ___________ 0,1 rad an year, and in most cases it does not produce an observable influence upon alive organisms. As a result of appearance additional amount of radionuclides in the biosphere (radiation sources) alive organisms were subjected both to irradiation, caused by the natural radioactive background and to artificial radioactive nuclides (not only external but also internal exposure from incorporated radionuclides). Because of different 8) ____________ of plant and animal species irradiation of natural biocenoses can bring to change ones species by others, to change of interspecific and intraspecific relations. Radiation and genetic changes appear in 9) _____________, natural mutative rate increases, it is occurring radiostability deviance on population level. Contamination of extensive territory by artificial radionuclides, both in Ukraine (Chernobyl exclusion zone and zone of the unconditional (obligatory) eviction, Kiev, Zhitomir, Rovno region), and abroad (Belorus, Russia, Sweden, Finland etc) has attracted attention of radioecologists to study the ways of radionuclide migration in the biosphere. Radioactive materials, including 10) ______________ of strontium and caesium are moving by certain biological chains, for instance soil − plant − animal − person. Study of artificial radioactive nuclide migration in biocenoses and in food chains is required for evaluation of their accumulation in separate sections of biological
chains and for possible consequences of additional irradiation created by them in plant, animal and person. Practical interest are presented radioecological studies that were carried out on these territory, which have allowed to realize regularities of radionuclide accumulation in cultural plant and in animal organism, as 11) _____________ and 12) ____________ products are sources of radionuclide fluxes in organism of person. IV. READING FOCUS 1. Read the text again. Which paragraphs contain the answers to these questions? 1) What does radioecology study? 2) What techniques does this science combine? 3) What do radioecological studies form? 4) What does such study focus on? 5) How is radioecology related to radiobiology? 6) What does this particular branch of ecology investigate? 7) What do the fields of application of this scientific discipline range from? 8) What does the ecosystem concept suggest? 9) What did radioecologists want to know after the first tests of nuclear bombs? 10) What sparked new studies in the field of radioecology? 2. Do the following statements agree with the information given in the text? TRUE…………… if the statement agrees with the information. FALSE…………. if the statement contradicts with the information. NOT GIVEN……………. if there is no information on this. 1. Investigations in radioecology might include aspects of field sampling, designed field and laboratory experiments 2. As a result of appearance additional amount of radionuclides in the biosphere, alive organisms were subjected both to irradiation, caused by the natural radioactive background and to artificial radioactive nuclides