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Soil pollution phpapp01

  1. soil pollution effects in human
  2. What is Soil..? What is soil pollution..? Soli pollution cause and effects in human How to prevent…
  3. SOIL- Soil is dynamic natural body composed of mineral matter and organic matter and living forms in which plant grows. POLLUTION- An undesirable change in the physical chemical or biological characteristics of air, water or soil.
  4. Provides nutrients Recycles/filters water Stores water Soil is the basis of life on Earth…why do you think? Plants get nutrients from soil and plants provided glucose and oxygen (producers)
  5. The contamination of soil with solid waste, acid rain excess of fertilizers, Insecticides andherbicides is called soil pollution (or land pollution).
  6. 1) Agricultural pesticides 2) Disposal of solid wastes on land 3) Mining activities 4) Urbanization 5) Biological agents 6) Radioactive pollutants 7) Heavy metal pollutants kind of soil pollutionkind of soil pollution
  7. Acid Rain is caused by air pollution. The acidic water falls on the soil and pollutes it by making the soil acidic. Acid RainAcid Rain
  8. Comes from homes, cattle sheds, agricultural fields, industries and many other places and get accumulated in the form of heaps. Solid waste include Cow dung; Night soil (Human excreta), fruits and vegetable peels ash ,waste paper, metal objects etc. Solid WastesSolid Wastes
  9. The use of excess fertilisers to increase the crop yields makes the soil either acidic or alkaline and pollutes it. For example, excessive use of ammonium sulphate fertilisers makes the soil highly acidic whereas the excessive use of sodium nitrate fertilisers makes the soil highly alkaline. FertilisersFertilisers
  10. Insecticides and Herbicides are poisonous chemicals which are used to spray standing crops to prevent them from harmful insects and herbs . These insecticides and herbicides mix with the soil and pollute it. Insecticides and HerbicidesInsecticides and Herbicides Insecticides
  11. The solid wastes like garbage destroy the natural beauty and become a breeding ground for mosquitoes which spread diseases like malaria and Dengue. Land Pollution caused by acid rain reduce the fertility of soil leading to reduction of crop yields.
  12. Cause of soil pollution
  13. Causes of Soil Pollution • High levels of radionuclides like nitrogen and phosphorus can be found surrounding farm centers containing high population densities of livestock. • Pesticides applied to plants can also seep into the ground, leaving lasting effects. • Heavy metals can arrive in the soil by using polluted water to wet crops and by using mineral fertilizers. • Industry is to blame for some of the biggest soil-pollution disasters.
  14. • Reduced soil fertility • Reduced nitrogen fixation • Increased erodibility • Larger loss of soil and nutrients • Deposition of silt in tanks and reservoirs • Reduced crop yield • Imbalance in soil fauna and flora Agricultural effects
  15. Agricultural effects
  16. Industrial effects • Dangerous chemicals entering underground water. • Ecological imbalance. • Release of pollutant gases. • Increased salinity. • Reduced vegetation.
  17. Industrial Effects Polluted land with dangerous chemicals Soil pollution due to industrial waste
  18. Urbanization effects • Clogging of drains • Inundation of areas • Public health problems • Pollution of drinking water sources • Foul smell and release of gases • Waste management problems
  19. Urbanization effects Contamination of soil due to waste water
  20. Some more effects of soil pollution
  21. Process in which certain non-biodegradable substances go on accumulating in the food-chain. Most common example is of methyl mercury in fish and mercury in eagles. Not only does bio magnification put the particular species at risk, it puts all the species above and below it at risk, and ultimately affects the food pyramid. Ecosystem effects
  22. Health consequences from exposure to soil contamination vary greatly depending on pollutant type, pathway of attack and vulnerability of the exposed population. Health hazards: Direct affect on human health. Contamination of ground water aquifers. Chronic exposure to chromium, lead and other metals, petroleum, solvents, and many pesticide and herbicide can be carcinogenic, can cause congenital disorders. Health effects
  23. 1. Adoption of sustainable agriculture having organic farming and use of biofertilizers, biointegrated pest management and proper water management, composting etc. 2. Adoption of suitable and proper industrial and urban wastes management. 3. Adequate controlled use of heavy metal and toxic substances. 4. Non-biodegradable wastes can be recycled and used again 3. Biomedical wastes should be carefully disposed off so that it does not create any health hazard.
  24. Prevention of Soil Pollution Landfills Recycling Composting Incineration Production of Biogas and Manure Naturally, prevention is the best cure for soil pollution. Consumers can also make a concerted effort to buy organic foods to demand that chemical pesticides aren't used on their foods.
  25. Most of the solid wastes in urban areas are buried in low-lying areas to level the uneven ground. This is called Landfills. LandfillsLandfills
  26. It is the method of recovery and processing of Biodegradable wastes or materials after they have been used, which enables them to be used. For example, solid wastes like paper, plastics and metals, etc., are recycled. Industrial wastes are treated in special plants and valuable wastes are recycled. RecyclingRecycling 11 CompostingComposting In this method, the domestic waste like fruit and vegetable waste, left-over food, leaves of potted plants etc., can be converted into compost and used as manure.
  27. It means ‘reduction to ashes’. The burning of a substance at high temperature to form ash is called Incineration. It is used to destroy household waste, chemical waste and biological waste. Incineration is carried out in incinerator. IncinerationIncineration 11
  28. In this method Cow dung is fed into biogas plants to produce biogas and obtain manure. Production of Biogas & ManureProduction of Biogas & Manure
  29. Contour planting Plant across a hillside (instead of up and down),slows run off Strip farming Planting alternating crops in strips across land In combination with contour planting, this slows erosion
  30. • Terracing  Similar to strip farming  Land is shaped…level ridges of land are created to hold water and soil in place  More expensive and time consuming but allows cultivation on steep grades and increases sustainability (this is how rice is grown in Asia) • Perennial plant growing  Coffee and tea  Plants that grow during several seasons  Do not have to harvested yearly AND hold soil longer  Ground cover plants (alfalfa) hold and protect soil from erosion if planted right after initial harvest
  31. "Treat the earth well: it was not given to you by your parents,"Treat the earth well: it was not given to you by your parents, it was loaned to you by your children. We do not inherit theit was loaned to you by your children. We do not inherit the Earth from our Ancestors, we borrow it from our Children."Earth from our Ancestors, we borrow it from our Children." Ancient Native Indian ProverbAncient Native Indian Proverb
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