1. health hazards: harmful substances in toxic land can enter human body through soil particles, water sources and air, which is harmful to human health. These harmful substances may cause respiratory diseases, skin diseases, cancer and other diseases.
2. Ecological destruction: Poisonous land will destroy the soil ecosystem and affect the survival and reproduction of microorganisms, plants and animals in the soil. This will lead to the reduction of biodiversity and destroy the ecological balance.
3. Water pollution: harmful substances in toxic land can pollute water sources through the infiltration and flow of groundwater and surface water. This will not only affect people's drinking water safety, but also cause harm to aquatic organisms.
4. Crop pollution: harmful substances in toxic land can be absorbed by crops and then enter the human food chain. This will lead to pollution of agricultural products and pose a potential threat to human health.
5. Waste of land resources: toxic land cannot be used for agriculture, industry and residential activities, resulting in waste of land resources and economic losses.