Chernobyl disaster!

Chernobyl disaster

Performed students of 32 IT Performed students of 32 IT group:group:Tarasovskiy V., Ermolaeva J.,Tarasovskiy V., Ermolaeva J.,Maruta J. and Ligay E.Maruta J. and Ligay E.Teacher:Teacher:Kochkina V.U.Kochkina V.U.

Project-work category: general human interest topic.

Type of the project: semi-structured (defined and planned by the teacher with students.

Time limit: in and out class project work, covering 8 academic hours.

Final outcome: multimedia and oral presentation.

Equipment and materials: the Internet, pictures, the Wikipedia

Aims of the project: to improve students’ language (reading, writing, speaking,

listening, grammar knowledge) and content knowledge; to recycle the vocabulary on the topic: “The Environment Nature. to encourage students to work together and to write their

messages to future; to develop students’ abilities to find and present information; to develop students’ autonomy and independence; to increase students’ motivation and ensure meaningful students’

engagement.

Contests:

Position Chernobyl The biggest accident of the XX-th century Catastrophic power Large quantities of radioactive contamination The accident occurred during an experiment The reason of accident Liquidators The radiation levels Evacuation developments Residual radioactivity in the environment Mutations in both humans and other animals Chernobyl after the disaster

Chernobyl, city (since 1941) in Ukraine, the Kiev area.

It is located on the river Pripyat, at its confluence of the Kiev water basin.

Exactly twenty five years ago, in April 1986 this terrible word has sounded on all planet, having announced to the world the biggest accident of the XX-th century – explosion on 4 power unit of the Chernobyl NPP, carried away lives of ten thousand people. This day we have realized that the atom can be not only peace…

On the 26-th of April 1986, at 01:23 reactor four suffered a catastrophic power increase, leading to explosions in its core.

An explosion and fire released large quantities of radioactive contamination into the atmosphere, which spread over much of Western USSR and Europe.

The attempted experimentThe accident occurred during an experiment scheduled to test a potential safety emergency core cooling feature, which took place during the normal shutdown procedure.

Rough infringements of service regulations of the atomic power station, made by its personnel, are the following:•Experiment carrying out "at any cost", despite change of a condition of the reactor;•The conclusion from work of serviceable technological protection which simply would stop the reactor still before it has got to a dangerous mode;• Hushing up of scale of failure in the first days management CNPP.

The bulk of the work was carried out in 1986-1987, were attended by approximately 240 000 people. The total number of liquidators (including following years) was about 600 000.

The radiation levels in the worst-hit areas of the reactor building have been estimated to be 5.6 roentgens per second, equivalent to more than 20,000 roentgens per hour. A lethal dose is around 500 roentgens over 5 hours, so in some areas, unprotected workers received fatal doses within minutes.

Evacuation developments

Announcement for the evacuation of Prypiat.

The evacuation began at 14:00 on 27 April. In order to expedite the evacuation, the residents were told to bring only what was necessary.

From 1986 to 2000, more than 350 000 people were evacuated and resettled from the most severely contaminated areas of Belarus , Russia and Ukraine.

Residual radioactivity in the environmentRivers, lakes and reservoirsThe Chernobyl nuclear power plant is located next to the Pripyat River, which feeds into the Dnipro River reservoir system, one of the largest surface water systems in Europe.

GroundwaterGroundwater was not badly affected by the Chernobyl accident since radionuclides with short half-lives decayed away long before they could affect groundwater supplies.

Flora and faunaAfter the disaster, four square kilometers of pine forest directly downwind of the reactor turned reddish-brown and died, earning the name of the "Red Forest".

Mutations in both humans and other animals increased following the disaster.

In the aftermath of the accident, 237 people suffered from acute radiation sickness, of whom 31 died within the first three months.

Assessing the disaster's effects on human health

The first victim26 of April 2011 | 13:11

Vladimir Shashenok. Was married. Had the son. In night of accident was on duty in, located under nutritious unit of a reactor.

The first victim

Valery HodemchukThe reactor became its tomb …

Firemen extinguishing the reactor during the Firemen extinguishing the reactor during the

first hours after failure were the following:first hours after failure were the following:

Vladimir Pravik 1961 - 1986

Victor Kibenok 1963 - 1986

Nikolay Vashchuk

1959 - 1986

Vladimir Tishura1959 - 1986

Vasily Ignatenko1961 - 1986

Nikolay Titenok1962 - 1986

Stanislav Gripas, a pilotHe, voluntary, did the first flights by the helicopter over the smoking reactor …

The number of excess cancer deaths worldwide (including all contaminated areas) is approximately 27 000

Other health problems linked with the Chernobyl disaster include

• Down syndrome• Chromosomal aberrations• Neural tube defects

The monument in Belgorod to people died from radioactive accidents.

After Before