• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Incidence of Thyroid Cancer in Belarus

Extracts from this document...

Introduction

Incidence of Thyroid Cancer in Belarus Rebecca Newiss Biology Coursework 11O2 Belarus is a region just north of the Ukraine in an area that was previously part of the Soviet Union. In 1986 the nuclear reactor at the Chernobyl suffered a serious incident involving a fire and the release of significant amounts of radioactivity. The Gomel region lies immediately to the north of Chernobyl and is known to have received a high level of radioactivity as fallout after the breakdown of the reactor on 26th April 1986. The plume passed first over the Gomel region in the first few hours after a major release of radioactivity, and then over the Brest and Grodno regions. The fall out contained large amounts of iodine - 131. The 'cloud' of radioactivity then moved west over Northern Europe and eventually the U.K. The incidence of thyroid cancers has been monitored in many of town s in Belarus that the town passed over. Here were their findings. Town Years 1986 1987 1988 1989 1990 1991 1992* Total Brest 0 0 1 1 6 5 5 18 Vitebask 0 0 0 0 1 3 0 4 Gomel 1 2 1 2 14 38 13 71 Minsk 0 0 1 0 5 2 1 9 Mozyr 0 1 2 1 12 30 12 58 Mogilev 0 0 0 0 2 1 1 4 Zlobin 0 1 1 2 11 24 9 48 Bobrusk 0 0 0 3 5 13 6 27 * ...read more.

Middle

The number of cancers the town had was fifty eight, in comparison to the distance from the town this number was too low as the town Gomel, which was 30km more away from the incident site had seventy one cancers. I know that the number of cancers for Gomel is correct as it follows the line of best fit and also ties in with all the other results. Mozyr should have had around 90 cancers not fifty-eight. The second anomalous result was the town Mogilev; this had 4 cancers and was 287km away from Chernobyl, this result is also falls far away from the fine of best fit and is too low as the number of cancers should be much higher, around 17. The third and final anomalous result is for the town of Brest; this particular result shows that the number of cancers here is much too high for the distance it is away from Chernobyl, the result should have been around 3 or 4, instead it was a massive 17. I feel that these three particular points do not fit the pattern because of a number of issues, firstly the weather. The wind I feel could have been blowing in a direction that favored particular towns more so than others, this idea could explain why the town of Brest had such a high number of cancers, the wind could have been blowing in a westerly direction. ...read more.

Conclusion

To further the evidence collected that the children have got the cancer due to the Chernobyl accident I could look at their DNA for mutations. Mutations are changes in the DNA structure and are caused when individuals are exposed to mutagenic agents; an example of these is radioactive substances. We already know that the accident at Chernobyl released radioactive substances into the atmosphere that were then breathed in by the people in surrounding towns, I also know that if I greater the dose of radioactivity the greater the risk. This theory would then explain why towns closer to Chernobyl had a higher number of cancers. By looking at the structure of a DNA molecule I would know ones that had been subject to mutation would have resulted in a new form of gene, the ones that were not subjected to mutation would have the original genes. These changes can then be passed onto 'daughter' cells as a result of cell division, in other words the organization of part of the DNA molecule would be disturbed, which would result in the cell producing different sequences of amino acids and therefore proteins. Therefore, we can compare the proteins in the people who have thought to have been subjected to radioactivity and those who have thought not, if the proteins are different then we know that it is the radioactivity that has caused this, therefore the authorities should accept responsibility. 1 Rebecca Newiss ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Mechanics & Radioactivity section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Mechanics & Radioactivity essays

  1. Peer reviewed

    Are mobile phones a health risk?

    4 star(s)

    in my research I have also looked at the effects of low-frequency EM radiation in general; not just in the application of mobile phone technology. I have frequently found that concern for children specifically is raised as a common fear, and in the course of my research discovered an interesting

  2. Use of technology in a hospital radiology department. The department of imaging is one ...

    and remove intruders.[15] 2 the relationships between the productive section and support section of the organisation. Productive department Supportive department Radiologists Hospital receptionist Radiographer Maintenances staff Consultants Cleaners Porters The relationships between radiology, radiographer and receptionist are that the receptionist schedules the appointment for the patient, ensuring the patient in the right place and answering telephone.

  1. How successful was the management of the Chernobyl Incident?

    The whole idea of the Sarcophagus used as a shelter was effective, yet, as the sarcophagus was built in 'six months', one may criticise how quickly it was built and the builders/designers didn't acknowledge the design fully to make it effective.

  2. Multi-bladed Pumps. Does the number of propellor blades affect the efficiency of a ...

    The longer journey over the curved plane causes a drop in pressure, which translated to lift in planes, and thrust in propellers. According to all the textbooks, the optimum number of blades, the blade angle, the speed of rotation and the size of propeller all contribute to the efficiency.

  1. Physics a Nuclear Bomb

    2 This investigation aims to exploit the physics behind the detonation of Nuclear weapons, what they are theoretically capable of, and ways they can be used to save lives. Discussion Basics of Nuclear Bombs Nuclear bombs are not all the same, in fact, there are two different types of nuclear

  2. Force and Newton's three Laws

    Now if we also take the motion of the Earth around the sun then there is an additional factor of five times lower! In other words, these accelerations, even though they are real and can be measured - easily with today's high-tech instrumentation - they are much, much lower than

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work