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VSI Environmental Web Site - Home of Illinois largest radon reduction contractors.
Soil testing has been tried and shown to be unreliable, ... average by 50%. The techniques may also lower levels of other soil gases and decrease moisture problems. Building in the features is much cheaper ... the house to the roof to safely vent radon and other soil gases above the house. E. Junction Box An electrical junction box is ...
www.radongas.com

VSI Environmental Web Site - Home of Illinois largest radon reduction contractors.
Soil Depressurization. The negative pressure field beneath the slab caused by the system has reversed the normal direction of soil gas flow into the house. Radon and other soil gases are drawn indoors primarily by the lower air pressure in the house compared to that of the soil. To reduce radon-bearing soil ... directly from the soil. Phone: (815 ...
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Glossary of Terms | Indoor Air | Air | US EPA
SOIL GAS: The gas present in soil which may contain radon. SOIL-GAS-RETARDER: A continuous membrane or other comparable material used to retard the flow of soil gases into a ... the soil-gas-retarder membrane. Top of page TRACER GASES: Compounds, such as sulfur hexafluoride, which are used to identify suspected pollutant pathways and to quantify ventilation rates. Trace gases may ...
epa.gov

Radon: Environmental Health in Minnesota
This negative pressure acts as a vacuum (suction) that pulls soil gases, including radon, into the lower level of the structure. Some causes of home vacuum are ... easy, inexpensive, and can be done privately. Every home is unique due to its local soil, construction details, maintenance and degree of depressurization. Therefore, test results from nearby homes cannot be ...
www.health.state.mn.us

ESB: Forced-Air Systems Need Pressure Relief
The suction can pull soil gases, moisture and sewer gases into the home. It can also cause chimneys and combustion appliances to spill carbon monoxide and other harmful flue gases. To avoid these problems ...
oikos.com

Radon Environmental - Radon Mitigation and Testing - Indianapolis Indiana
Soil Gases Can Make You Sick! Today's homes are built to be ... do when we fail to control the entry of air (soil gas) from the soil which surrounds a home's foundation. This air can ... prevent all types of soil gases, including Radon, from entering your home. The Healthy Home Program includes the installation of a soil gas removal fan ...
www.radon-environmental.com

Radon and Sump Pumps
Special covers and sealants ...
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Radon Real Estate, Radon Dangers, Radon Home Test, Radon In The Home, Levels Of Radon
Radon-resistant techniques: Making Upgrading Easy: Even if built to be ... is placed beneath the slab or flooring system to allow the soil gas to move freely underneath the house. In many cases, ... the house to the roof, to safely vent radon and other soil gases to the outside. Junction Boxes: An electrical junction box is included ...
radonzone.com

Other Greenhouse gases - Hydrogen
Hydrogen Other Indirect Greenhouse Gases - Hydrogen Hydrogen (H2) is similar to carbon monoxide ... in the atmosphere, hydrogen increases the lifetime of some direct greenhouse gases, such as methane. Much hydrogen is itself produced in the atmopshere ... with OH, significant amounts of hydrogen are also taken up by soil microorganisms. Human Impact Currently man is responsible for around half of ...
www.ghgonline.org

Slurry wall construction, jet grouting, soil mixing, diaphragm wall, groundwater n environmental remediation services by Geotechnical Company
Usually the reagents are mixed with water to produce a grout or slurry. Although, gases ... generated during the oxidation process resulted in the formation of gases that were drawn through a thermal oxidation unit for treatment ... Biopolymer Trenches Slurry Walls Diaphragm Wall Soil Mixing Jet Grouting Sheet Piles Soil Stabilization Deep Soil Mixing Auger Cast Piles Anchors & ...
www.recon-net.com