Soil testing helps the owner to establish the type of contamination that is present in the soil and the best cost effective tactics to be used to remove them. The owner also gets important information on the best strategy to use by the lab that has tested the soil.
The soil testing lab are able to test the whether there exists heavy metals like, like arsenic, lead, mercury, and zinc, other toxic metals such as cobalt, beryllium, nickel, and chromium, carcinogenic solvents like toluene and benzene, oils, fuel additives, cyanide, pesticides, poisons, and fertilizers.
These toxic metals can emanate from places of heavy industry including factories, plants, and infrastructural plants like airports, docks, the roads, rail yards, and other vehicle depots. The contaminants hazardous waste disposal may also come from leaking pipelines, runoff from agricultural activities, and d wastage dumpsites.
You need to evaluate what will happen to those who will be in contact with the contaminated once the lab tests have been done. This will depend on the amount of pollutant in the soil. Various contaminants have various effects on human beings. For instance some affect theory breathing system, some their skins and some their digestion system. Some will affect negatively children who will be born. In areas for agricultural activities, plants and animals can also be affected by these pollutants in a similar way they affect human beings. Human beings can be affected from eating such animals.
In residential areas, it is important to test the soils to establish the levels of t toxins and how they might affect children. This is because children like touching soils than adults and are likely to be affected by the toxins in it.
Government regulations in handling polluted soils testing and management differ in various jurisdictions. But, they lean towards an approach of risk mitigation. Heavy industrial polluters are highly taxed so that the government gets funds to mitigate pollution.
There are many ways that can be used to remediate polluted soils including planting of certain trees, burning of the soil, using solvents, using charcoal and tarpaulins. The soil testing labs should be able to suggest the method that should be used. In some cases, the soils are excavated and buried underground. In modern methods landfills are protected from by heavy plastic materials to avoid leakage of toxins.
Agricultural soil polluted by too much fertilizers and pesticides can be remediated by washing with la lot of water, as most pollutants are water-soluble salts.