Se ha denunciado esta presentación.
Utilizamos tu perfil de LinkedIn y tus datos de actividad para personalizar los anuncios y mostrarte publicidad más relevante. Puedes cambiar tus preferencias de publicidad en cualquier momento.
Open elective paper 
ENVIRONMENTAL PPOOLLLLUUTTIIOONN AANNDD MMAANNAAGGEEMMEENNTT 
Seminar on 
Impact of Radiation polluti...
RRAADDIIAATTIIOONN 
Radiation is the complete process in which energy is emitted 
in the form of particles or waves from a...
TTYYPPEESS OOFF RRAADDIIAATTIIOONN
WWHHAATT IISS RRAADDIIAATTIIOONN PPOOLLLLUUTTIIOONN?? 
Radiation pollution is caused by radioactive substances which 
emit...
SSOOUURRCCEESS OOFF RRAADDIIAATTIIOONN PPOOLLLLUUTTIIOONN 
1. Nuclear explosions and detonations of nuclear weapons 
2. De...
NNuucclleeaarr eexxpplloossiioonn
NNuucclleeaarr ppoowweerr ppllaanntt
Procedures
NNuucclleeaarr wweeaappoonnss
UUrraanniiuumm mmiinniinngg
TTTTYYYYPPPPEEEESSSS O OOOFFFF R RRRAAAADDDDIIIIAAAATTTTIIIIOOOONNNN PPPPOOOOLLLLLLLLUUUUTTTTIIIIOOOONNNN 
CCOONNTTIINNUUO...
IIMMPPAACCTT OOFF RRAADDIIAATTIIOONN PPOOLLLLUUTTIIOONN 
IIMMPPAACCTT OOFF RRAADDIIAATTIIOONN PPOOLLLLUUTTIIOONN 
OONN HHU...
FFAACCTTOORRSS IINNFFLLUUEENNCCIINNGG TTHHEE IIMMPPAACCTT 
OOFF RRAADDIIAATTIIOONN PPOOLLLLUUTTIIOONN OONN 
FFAACCTTOORRSS...
FFIIRRSSTT MMEEDDIICCAALL FFIINNDDIINNGGSS 
First skin-burn attributed to 
radiation - 1901 
First radiation induced leu...
RRAADDIIAATTIIOONN AANNDD HHUUMMAANN CCEELLLL 
Primary target for cell 
damage from ionizing 
radiation is deoxyribonucle...
VIABLE CELL 
1) Mutation repaired 
UNVIABLE CELL 
2) Cell dies 
Stoch.effect 
3)Cell survives but 
mutated
Effects of Radiation oonn tthhee HHuummaann BBooddyy 
(1) Hair 
The losing of hair quickly and in clumps occurs 
with radi...
SSeevveerree MMeennttaall RReettaarrddaattiioonn 
A study of about 1,600 children exposed in-utero at 
Hiroshima and Naga...
CCAANNCCEERR
CCHHEERRNNOOBBYYLL EEXXPPEERRIIEENNCCEE 
Acute Radiation Syndrome and 
Radiation burns (ARS) 
2266..0044..11998866 
at the...
HHEERREEDDIITTAARRYY EEFFFFEECCTTSS 
In the absence of human data 
the estimation of hereditary 
effects are based on ani...
TYPICAL EFFECTS OOFF RRAADDIIAATTIIOONN OONN 
EEMMBBRRYYOO 
Death of the embryo or fetus 
Induction of; 
1. malformation...
QQUUEESSTTIIOONNNNAAIIRREE
Impact of radiation pollution on human health  siri
Impact of radiation pollution on human health  siri
Impact of radiation pollution on human health  siri
Impact of radiation pollution on human health  siri
Impact of radiation pollution on human health  siri
Impact of radiation pollution on human health  siri
Impact of radiation pollution on human health  siri
Impact of radiation pollution on human health  siri
Impact of radiation pollution on human health  siri
Impact of radiation pollution on human health  siri
Impact of radiation pollution on human health  siri
Impact of radiation pollution on human health  siri
Impact of radiation pollution on human health  siri
Impact of radiation pollution on human health  siri
Próxima SlideShare
Cargando en…5
×

Impact of radiation pollution on human health siri

Brief impact of radiation pollution on human health

  • Sé el primero en comentar

Impact of radiation pollution on human health siri

  1. 1. Open elective paper ENVIRONMENTAL PPOOLLLLUUTTIIOONN AANNDD MMAANNAAGGEEMMEENNTT Seminar on Impact of Radiation pollution on HUMAN Health DOS in Environmental Science Presented by: Nethravathi R GN113011 III sem MSc.Genetics DOS in Zoology 29th Nov 2014
  2. 2. RRAADDIIAATTIIOONN Radiation is the complete process in which energy is emitted in the form of particles or waves from a particular source, transmitted through an intervening medium or space, and absorbed by biotic & abiotic components of the environment.
  3. 3. TTYYPPEESS OOFF RRAADDIIAATTIIOONN
  4. 4. WWHHAATT IISS RRAADDIIAATTIIOONN PPOOLLLLUUTTIIOONN?? Radiation pollution is caused by radioactive substances which emit invisible radiation released in the environment through human activities. Radiation is a fact of life - all around us, all the time The radiation pollution causes are various human activities, that add to natural radiation background (radiation produced everywhere in the Universe in absence of human activities). Radioactive pollution of the atmosphere can be defined as any undesirable change in the atomsphere due to increase in the natural background of radiation arising out of human activities involving the use of naturally occuring or artifically produced radioactive substances.
  5. 5. SSOOUURRCCEESS OOFF RRAADDIIAATTIIOONN PPOOLLLLUUTTIIOONN 1. Nuclear explosions and detonations of nuclear weapons 2. Defense weapon production 3. Mining 4. Nuclear accidents 5. research procedures and wastes 6. medical procedures and wastes 7. nuclear power plants 8. TVs 9. computers 10. radio waves 11. cell-phones …..
  6. 6. NNuucclleeaarr eexxpplloossiioonn
  7. 7. NNuucclleeaarr ppoowweerr ppllaanntt
  8. 8. Procedures
  9. 9. NNuucclleeaarr wweeaappoonnss
  10. 10. UUrraanniiuumm mmiinniinngg
  11. 11. TTTTYYYYPPPPEEEESSSS O OOOFFFF R RRRAAAADDDDIIIIAAAATTTTIIIIOOOONNNN PPPPOOOOLLLLLLLLUUUUTTTTIIIIOOOONNNN CCOONNTTIINNUUOOUUSS RRAADDIIAATTIIOONN PPOOLLLLUUTTIIOONN OOCCCCAASSIIOONNAALL RRAADDIIAATTIIOONN PPOOLLLLUUTTIIOONN AACCCCIIDDEENNTTAALL RRAADDIIAATTIIOONN PPOOLLLLUUTTIIOONN Eg: Workers in radioactive reactors Eg: explosion of reactor Eg: Natural disaster
  12. 12. IIMMPPAACCTT OOFF RRAADDIIAATTIIOONN PPOOLLLLUUTTIIOONN IIMMPPAACCTT OOFF RRAADDIIAATTIIOONN PPOOLLLLUUTTIIOONN OONN HHUUMMAANN HHEEAALLTTHH IINNSSTTAANNTTAANNEEOOUUSS EEFFFFEECCTT DDEELLAAYYEEDD EEFFFFEECCTT OONN HHUUMMAANN HHEEAALLTTHH PPRROOLLOONNGGEEDD • IMMEDIATE EFFECT EEFFFFEECCTT • LONGER EFFECT • NO SYMPTOMS • ADVERSE EFFECT Eg: hiroshima and nagasaki (August 1945) killed at least 129,000 people Eg: hiroshima and nagasaki Effecting 3rd generation Eg: Cancer
  13. 13. FFAACCTTOORRSS IINNFFLLUUEENNCCIINNGG TTHHEE IIMMPPAACCTT OOFF RRAADDIIAATTIIOONN PPOOLLLLUUTTIIOONN OONN FFAACCTTOORRSS IINNFFLLUUEENNCCIINNGG TTHHEE IIMMPPAACCTT OOFF RRAADDIIAATTIIOONN PPOOLLLLUUTTIIOONN OONN DDOOSSEE OOFF RRAADDIIAATTIIOONN OOBBSSEERRVVEEDD BBYY TTHHEE BBOODDYY SSEENNSSIITTIIVVIITTYY OOFF TTHHEE PPEERRSSOONN HHUUMMAANN HHEEAALLTTHH HHUUMMAANN HHEEAALLTTHH DDUURRAATTIIOONN OOFF EEXXPPOOSSUURREE
  14. 14. FFIIRRSSTT MMEEDDIICCAALL FFIINNDDIINNGGSS First skin-burn attributed to radiation - 1901 First radiation induced leukemia described -1911 First publication describing “a clinical syndrome due to atomic bomb” - 1946
  15. 15. RRAADDIIAATTIIOONN AANNDD HHUUMMAANN CCEELLLL Primary target for cell damage from ionizing radiation is deoxyribonucleic acid (DNA) in chromosomes of cell’s nuclei
  16. 16. VIABLE CELL 1) Mutation repaired UNVIABLE CELL 2) Cell dies Stoch.effect 3)Cell survives but mutated
  17. 17. Effects of Radiation oonn tthhee HHuummaann BBooddyy (1) Hair The losing of hair quickly and in clumps occurs with radiation exposure at 200 rems or higher (2) Brain Since brain cells do not reproduce, they won't be damaged directly unless the exposure is 5,000 rems or greater. Like the heart, radiation kills nerve cells and small blood vessels, and can cause seizures and immediate death. (3) Thyroid The certain body parts are more specifically affected by exposure to different types of radiation sources. The thyroid gland is susceptible to radioactive iodine. In sufficient amounts, radioactive iodine can destroy all or part of the thyroid. By taking potassium iodide, one can reduce the effects of exposure. (5) Heart Intense exposure to radioactive material at 1,000 to 5,000 rems would do immediate damage to small blood vessels and probably cause heart failure and death directly. (6) Gastrointestinal Tract Radiation damage to the intestinal tract lining will cause nausea, bloody vomiting and diarrhea. This is occurs when the victim's exposure is 200 rems or more. The radiation will begin to destroy the cells in the body that divide rapidly. These including blood, GI tract, reproductive and hair cells, and harms their DNA and RNA of surviving cells. (7) Reproductive Tract Because reproductive tract cells divide rapidly, these areas of the body can be damaged at rem levels as low as 200. Long-term, some radiation sickness victims will become sterile. 4) Blood System When a person is exposed to around 100 rems, the blood's lymphocyte cell count will be reduced, leaving the victim more susceptible to infection. This is often refered to as mild radiation sickness.
  18. 18. SSeevveerree MMeennttaall RReettaarrddaattiioonn A study of about 1,600 children exposed in-utero at Hiroshima and Nagasaki to various radiation doses and at various developmental stages: excess mental retardation was at a maximum between 8 and 15 weeks Risk: 0.05% per mSv (8-15 weeks)
  19. 19. CCAANNCCEERR
  20. 20. CCHHEERRNNOOBBYYLL EEXXPPEERRIIEENNCCEE Acute Radiation Syndrome and Radiation burns (ARS) 2266..0044..11998866 at the Chernobyl Nuclear Power Plant in Ukraine
  21. 21. HHEERREEDDIITTAARRYY EEFFFFEECCTTSS In the absence of human data the estimation of hereditary effects are based on animal studies Risks to offspring following prenatal exposure: Total risk = 0.0003 - 0.0005% per mGy to the first generation Constitutes 0.4-0.6% of baseline frequency (UNSCEAR 2001 Report Hereditary Effects of Radiation)
  22. 22. TYPICAL EFFECTS OOFF RRAADDIIAATTIIOONN OONN EEMMBBRRYYOO Death of the embryo or fetus Induction of; 1. malformation 2. growth retardation 3. functional disturbance 4. cancer Factors influencing the probability of effects 1. Dose for embryo or foetus 2. Gestation status at the time of exposure
  23. 23. QQUUEESSTTIIOONNNNAAIIRREE

×