1 Spread of the cancer to other parts of the body: Pain caused by cancer itself is more common in people who have metastatic (or advanced) disease, in which the breast cancer spreads to other parts of the body.
Toxicological Effects: 1  Acute toxicity: Atrazine is slightly to moderately toxic to humans and other animals. 2  Chronic toxicity: Some 40% of rats receiving oral doses of 20 mg/kg/day for 6 months died with signs of respiratory distress and paralysis of the limbs.
BIOLOGICAL EFFECTS OF IONIZING RADIATION. Ionizing radiation in very high levels is known to increase the incidence of cancer, birth. anomalies, erythema, and other problems. In low levels, these effects are either very, very small. compared to natural incidences or non-existent depending on the biological model used for. estimating the potential risk.