Water sources in floodplains are seriously polluted. When this disaster occurs, the amount of water rises to cover the land, carrying mud, soil, toxic waste generated in the flood water.

Floods lead to various diseases for humans. Due to water pollution, people in floodplain areas will lack domestic water sources, or domestic water has been contaminated during floods, creating conditions for infectious diseases to spread and spread rapidly.
( Lũ lụt dẫn đến nhiều bệnh tật cho con người. Do nguồn nước bị ô nhiễm, người dân vùng lũ sẽ thiếu nguồn nước sinh hoạt, hoặc nước sinh hoạt đã bị ô nhiễm khi có lũ, tạo điều kiện cho các bệnh truyền nhiễm phát sinh, lây lan nhanh. )

If the flood occurs lightly, it destroys crops, and when heavy, Typical disasters caused the highest number of casualties, simultaneously killing many people and swept away many possessions

the natural imbalance in floods like turns the downstream areas into drought
(sự mất cân bằng tự nhiên trong lũ lụt biến các vùng hạ lưu trở thành hạn hán)

After the flood, it is necessary to: Check equipment before use to ensure safety. Urgently overcome the consequences, restore production. Statistics of damage, timely, complete and accurate report with local authorities.

/pollution is an environmental concern for people throughout the world. water in many developing countries is contaminated with toxic chemicals. Air pollution is a growing problem throughout the world. Soil pollution is also a major concern, both in industrial and developing countries./