NEET BIOLOGY

Detailed explanation-1: -Increased risk of thyroid cancer has been one of the most important adverse health effects observed after the accident. The energy from ionizing radiation breaks the chemical bonds in DNA, resulting in a number of different types of damage.

Detailed explanation-2: -Taken together, results of analyses of time trends in cancer incidence and mortality in Europe do not, at present, indicate any increase in cancer rates – other than thyroid cancer in the most contaminated regions – that can be clearly attributed to radiation from the Chernobyl accident.

Detailed explanation-3: -On April 26, 1986, an accident occurred at the Chernobyl nuclear power plant in northern Ukraine. In addition to 28 near-term deaths due to radiation, the accident resulted in the exposure of 5 million people in Belarus, Russia and Ukraine to fallout from the accident, principally radioiodines.

Detailed explanation-4: -The Chernobyl disaster caused serious radiation sickness and contamination. Between 50 and 185 million curies of radionuclides escaped into the atmosphere. Millions of acres of forest and farmland were contaminated, livestock was born deformed, and humans suffered long-term negative health effects.