Vapor intrusion definition

Vapor intrusion means the migration of volatile chemicals from contaminated environmental media into a building, subsurface conduit or structure.

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Vapor intrusion means the migration of volatile or semi-volatile chemicals from contaminated environmental media or product into a building, subsurface conduit or structure.

Vapor intrusion means the migration of volatile chemicals from the subsurface into overlying buildings through subsurface soils or preferential pathways (such as underground utilities).

Examples of Vapor intrusion in a sentence

• Vapor intrusion primarily occurs when there is a lower pressure inside the building, i.e., causing soil gas to flow into a building through cracks in the floor (U.S. EPA, 2002b).

• Vapor intrusion barriers (Section 5.1.3.6) and sealing of cracks in the floor (Section 5.1.3.7) may also be implemented to further reduce the potential for vapor intrusion to occur.

• Alternative materials for vapor intrusion barriers are described in the design guidance sources listed in Section 5.1.3.1. Vapor intrusion barriers are not required by this EIMP, but may be used in conjunction with the other vapor intrusion mitigation methods described herein.

• Vapor intrusion is believed to occur primarily through cracks and penetrations that occur in the floor that is in contact with the ground (see guidance documents listed in Section 5.1.3.1).

• Vapor intrusion into buildings can be mitigated using ventilated parking garage construction at ground level beneath the occupied residential, education or commercial space, as discussed below.

More Definitions of Vapor intrusion

Vapor intrusion means the presence of volatile and semi-volatile organic compounds in residential or commercial buildings, assessed in accordance with Section 7.3 of the UST Corrective Action Manual, incorporated by reference in 401 KAR 42:060, resulting from con- taminated subsurface media originating from a UST system release. (22 Ky.R. 427; 918; eff. 11-14-1995; 23 Ky.R. 986; eff. 3-12-1997; 29 Ky.R. 2146; 2458; eff. 4-11-2003; 32 Ky.R. 2109; 33 Ky.R. 456; 732; eff. 9-13-2006; 37 Ky.R. 2686; 38 Ky.R. 255; 510; eff. 10-6-2011; Crt eff. 10-9-2018; 45 Ky.R. 1365, 2360, 2630; eff. 4-5-2019.)

Vapor intrusion means a process by which a hazardous substance from a vapor source has migrated or has the potential to migrate through the subsurface or preferential pathways, or both, into overlying buildings.

Vapor intrusion means the presence of volatile and semi-volatile organic compounds in residential or commercial buildings, assessed in accordance with Section 7.3 of the UST Corrective Action Manual, incorporated by reference in 401 KAR 42:060, resulting from contaminated subsurface media originating from a UST system release.

Vapor intrusion means the presence of volatile and semi-volatile organic com- pounds in residential or commercial buildings, assessed in accordance with Section 7.3 of the UST Corrective Action Manual[Release Response and Initial Abatement Requirements Out- line], incorporated by reference in 401 KAR 42:060, resulting from contaminated subsurface media originating from a UST system release.[(128) "Wastewater treatment tank" means a tank that is designed to receive and treat an influent wastewater through physical, chemical, or biological methods.]

Vapor intrusion means the presence of volatile and semi-volatile organic compounds in residential or commercial buildings, assessed in accordance with the Release Response and Ini- tial Abatement Requirements Outline, resulting from contaminated subsurface media originating from a UST system release.

Vapor intrusion means the migration of vapors from VOCs in subsurface soil or groundwater to an enclosed space where exposure to humans may occur.

Vapor intrusion means the presence of volatile and semi-volatile organic compounds in residential or commercial buildings, assessed in accordance with Section