Do and eat organic food that will be grown without the use of pesticides. Industrial Waste: Unused chemicals and unwanted industrial waste such as lead, copper, fly ash, mud, plastic and sawdust are some unused chemicals which inhibit the growth of organic agents in the soil. For the second and third cases, humans that eat contaminated animals are also exposed to even more concentrated pollutants. In other words, soil erosion is a process by which the soil particles transfer from place to place due to the effect of external factors air or flowing water. This hampers the land immensely.
The petroleum liquids are stored in underground tanks which may at times leak. Industrial Activity: Industrial activity has been the biggest contributor to the problem in the last century, especially since the amount of mining and manufacturing has increased. Main Causes of Soil Pollution 1. Thus, its average varies in different countries. Unlike deserts, which are suitable for its native vegetation, such land cannot support most forms of life. When acids are present in the soil, they are carried away with flowing water, causing harm to water bodies. H 2 gas liberated during electrolysis makes the phosphate and sludge to float on the surface as scum which can be scrapped off from the top layer.
Forests are also removed to meet the growing demand of population. Other chemicals cause rashes and allergies, and they may weaken the immune system. For example, lead is a common contaminant for areas with intensive industrial activity, and people may exhibit signs of lead poisoning. As a result harmful chemicals enter the food chain. Some of the sources of soil pollutions are discussed below: 1. Third, plants growing on polluted soil take up contaminants from the soil and store them in plant tissue. The leftover material is sent to landfill site which end up in polluting the environment.
Extraction and processing of mineral ores causes harm to the top soil layer. Effects of Soil Pollution 1. Industrial and Mining Wastes 3. Such processes release unused and unwanted waste into the environment. Not only does accumulation of these wastes result in poor human health, they also cause pollution of the soil.
Scientists at Tampere University of Technology, Finland used sand, vulcanite mineral, silica based material, called celite R-633 and pumice to clean up chlorophenol contaminated ground water. Agricultural Wastes: Agricultural practices also pollute the soil. They become home for rodents, mice etc which in turn transmit diseases. Cracked Paint Chips from Buildings As paint on building walls and facades grow old, it can develop cracks and create paint chips that get into the soil. Use of plants that can remove the pollutants from the soil is being encouraged. Wastes from nuclear reactors contain ruthenium-106 and rhodium-106, iodine-131, barium-140, lanthanum-140, cerium-144, etc. Human health is at risk due to the high concentration of pollutants found in soils and food produced in polluted lands.
Soil pollution can also lead to water pollution if the toxic chemicals and materials like dangerous heavy metals leach into groundwater or contaminate storm water runoff, which reaches lakes, rivers, streams, or oceans. Industrial wastes : There are two kinds of wastes that are generated from industrial activities: unused chemicals and unwanted industrial garbage. When plant macronutrients like potassium, phosphorus and nitrogen are used excessively, the soil becomes deficient in micronutrients like boron and zinc. Such construction dust can trigger respiratory illnesses such as asthma and bronchitis, and even cancer. For example, high concentrations of lead or mercury in the soil can endanger the functionality of kidneys and liver.
These metals are particularly absorbed by infants and children. These concentrations were substantially higher than the values found on soils 50 m away from the roads 97. For most practical application, only fabric filters, electrostatic precipitators and high energy scrubbers are capable of meeting the rigorous air pollution control regulations. Additionally, various compounds get into the soil from the atmosphere, for instance with precipitation water, as well as by wind activity or other types of soil disturbances, and from surface water bodies and shallow groundwater flowing through the soil. They are dumped beneath the earth to avoid any casualty. Soil pollution takes place when the or degraded. Noise pollution has more of a psychological effect rather than a physical one.
Soil pollution refers to the degradation of soil quality due to the addition of pollutants in the soil. The discharge of chemicals on land, makes it dangerous for the ecosystem too. Effective treatment of domestic sewage by suitable biological and chemical methods and adopting modern techniques of sludge disposal. Examples of indirect causes are acid rain and disposal of radioactive substances. Food animals that drink contaminated water or eat contaminated plants are a further, secondary source of pollutants.
The dumping of domestic and municipal wastes is a serious problem in cities because of its impact on environment and public health. Minimising Water Pollution : Following methods can be adopted: 1. All of these radionuclides emit gamma radiations, which are also harmful to the soil. Several creatures survive under the land too. They contaminate the soil by changing their physical and chemical properties.