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  • What is vapor intrusion and its impact?

    Vapor intrusion occurs when contaminates and chemicals, perhaps from a polluted site, leach down into the ground water and begin to flow with the groundwater. If the ground water flows near, or underneath a building, contaminated vapors from the water can travel up through the soil, and into a closed building or house through the basement, floor, or cracks in the wall. The most likely source of such volatile vapors is that of industrial dump sites, and contaminates that are left in the soil. There are many such solvents and degreasers, petroleum residue, and improperly disposed components like these. These are called volatile organic compounds, or VOCs. The VOCs themselves are fairly stable, but at the level of the water table they can evaporate and assume to a vapor, thus traveling through soils that are overlying the groundwater. The commonly found pollutants are perchiorethylene, trichloroethylene, Benzene, toluene and xylene. These are all very toxic to humans, and can cause discomfort and disorders of human health. Continue reading…

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    18 Jun