Passive device for vapor intrusion sampling
First Claim
1. A passive vapor intrusion sampling device comprising:
- a barrier layer having first and second major sides;
an absorbent stack disposed over a first portion of a surface of the first major side of the barrier layer, the absorbent stack comprising;
a first absorbent layer, anda first spacer layer disposed between the first absorbent layer and the barrier layer; and
an adhesive layer disposed on a second portion of the surface area of the first major side of the barrier layer and transversely surrounding the absorbent stack.
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Accused Products
Abstract
Disclosed herein is a passive vapor intrusion measurement device including a barrier layer having first and second major sides; an absorbent stack disposed on a first portion of the surface of the barrier layer first major side, the absorbent stack including a first absorbent layer, an optional second absorbent layer; and spacer layer(s) disposed between the first and second (if present) absorbent layer and the barrier layer; and an adhesive disposed on a second portion of the surface of the barrier layer first major side and transversely surrounding the absorbent stack. The device is applied to a substrate in need of vapor intrusion sampling. A method of vapor intrusion analysis includes individually collecting the first and second (if present) absorbent layers after a test period; analyzing the amount of an analyte the absorbent layer(s); and subtracting the amount of the analyte in the second absorbent layer (if present) from the amount of the analyte in the first absorbent layer.
20 Citations
20 Claims
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1. A passive vapor intrusion sampling device comprising:
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a barrier layer having first and second major sides; an absorbent stack disposed over a first portion of a surface of the first major side of the barrier layer, the absorbent stack comprising; a first absorbent layer, and a first spacer layer disposed between the first absorbent layer and the barrier layer; and an adhesive layer disposed on a second portion of the surface area of the first major side of the barrier layer and transversely surrounding the absorbent stack. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification