Danger of flood:
Flood is the most common and harmful. Floods occur frequently, spread widely, are fierce and extremely destructive. Floods not only flooded houses and people, causing a large number of casualties, but also swept away everything in people's homes, including food, flooded farmland and destroyed crops, resulting in a substantial reduction in food production, which led to famine. Floods will also destroy factories, workshops, communication and transportation facilities, thus causing damage to the national economic sector.
According to the flood information provided by local TV, radio and other media, combined with their own location and conditions, calmly choose the best route to evacuate, so as to avoid the passive situation of "people arrive first and there is no water".
Precipitation and sun exposure will weather rocks and destroy large ancient cultural relics, such as the Forbidden City in Beijing. The purification of water will dissolve carbon dioxide, sulfur dioxide and sulfur trioxide in the air, form acid rain and destroy the environment and biology; Large-scale precipitation caused by typhoon will cause geological disasters such as flash floods and landslides; Destroy soil.
Due to frequent and sudden floods, the dangerous areas are relatively concentrated, which directly threatens the safety of human life and property.
Due to flood, flood discharge and livestock flooding, it is necessary to move the patent number of this person synchronously. On the one hand, the source of infection shifts to non-epidemic areas, and on the other hand, susceptible people enter epidemic areas, which has potential epidemic factors. Such as influenza, measles and malaria, may be caused by this kind of exercise. Some frequently-occurring diseases, such as pinkeye, skin diseases, etc., will also increase the chance of transmission because of dense crowds and contact.