GGR205H1 Lecture Notes - Lecture 5: Underground Storage Tank, Soil Contamination, Attenuation
13 Dec 2016
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Toxic organic chemicals industrialized societies have synthesized thousands of organic (carbon-containing) compounds for many uses. Included are plastics and plasticizers, lubricants and refrigerants, fuels and solvents, pesticides and preservatives. Some are extremely toxic to humans and other life. Through accidental leakage and spills or through planned spraying or other treatments, synthetic organic chemicals can be found in virtually every corner of our environment in the soil, in the groundwater, in the plants, and in our own bodies. Kinds of organic contaminants figure 15. 1 leaking underground storage tank replacement at a gas station in california. The old rusting steel tanks have been removed and replaced by more corrosion-resistant fiberglass tanks, which are set in the ground and covered with pea gravel. The soil and groundwater aquifer beneath the tanks were cleaned up using special techniques to stimulate soil microorganisms and to pump out volatile organics such as benzene vapors. Remediation and replacement typically costs ,000 for a single gas station.
