Skip to Content
MilliporeSigma
  • Evaluation of site-specific lateral inclusion zone for vapor intrusion based on an analytical approach.

Evaluation of site-specific lateral inclusion zone for vapor intrusion based on an analytical approach.

Journal of hazardous materials (2015-06-10)
Yijun Yao, Yun Wu, Mengling Tang, Yue Wang, Jianjin Wang, Eric M Suuberg, Lin Jiang, Jing Liu
ABSTRACT

In 2002, U.S. EPA proposed a general buffer zone of approximately 100 feet (30 m) laterally to determine which buildings to include in vapor intrusion (VI) investigations. However, this screening distance can be threatened by factors such as extensive surface pavements. Under such circumstances, EPA recommended investigating soil vapor migration distance on a site-specific basis. To serve this purpose, we present an analytical model (AAMLPH) as an alternative to estimate lateral VI screening distances at chlorinated compound-contaminated sites. Based on a previously introduced model (AAML), AAMLPH is developed by considering the effects of impervious surface cover and soil geology heterogeneities, providing predictions consistent with the three-dimensional (3-D) numerical simulated results. By employing risk-based and contribution-based screening levels of subslab concentrations (50 and 500 μg/m(3), respectively) and source-to-subslab attenuation factor (0.001 and 0.01, respectively), AAMLPH suggests that buildings greater than 30 m from a plume boundary can still be affected by VI in the presence of any two of the three factors, which are high source vapor concentration, shallow source and significant surface cover. This finding justifies the concern that EPA has expressed about the application of the 30 m lateral separation distance in the presence of physical barriers (e.g., asphalt covers or ice) at the ground surface.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Silicon dioxide, −325 mesh, 99.5% trace metals basis
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Sigma-Aldrich
Silica
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Sigma-Aldrich
Silica, nanopowder, 99.8% trace metals basis
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Sigma-Aldrich
Silicon dioxide, JIS special grade
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Sigma-Aldrich
Silica, mesostructured, MCM-41 type (hexagonal)
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Sigma-Aldrich
Silicon dioxide, single crystal substrate, optical grade, 99.99% trace metals basis, L × W × thickness 10 mm × 10 mm × 0.5 mm
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Sigma-Aldrich
Silicon dioxide, nanopowder (spherical, porous), 5-20 nm particle size (TEM), 99.5% trace metals basis
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Sigma-Aldrich
Silicon dioxide, nanopowder, 10-20 nm particle size (BET), 99.5% trace metals basis
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Sigma-Aldrich
1-Naphthyl phosphate monosodium salt monohydrate, ≥98% (titration), powder
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Sigma-Aldrich
Silica, fumed, powder, 0.2-0.3 μm avg. part. size (aggregate)
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Sigma-Aldrich
Silica, fumed, powder
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Sigma-Aldrich
Silica, mesostructured, MSU-F (cellular foam)
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Sigma-Aldrich
LUDOX® CL colloidal silica, 30 wt. % suspension in H2O
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Sigma-Aldrich
LUDOX® TM-40 colloidal silica, 40 wt. % suspension in H2O
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Sigma-Aldrich
LUDOX® LS colloidal silica, 30 wt. % suspension in H2O
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Sigma-Aldrich
LUDOX® HS-30 colloidal silica, 30 wt. % suspension in H2O
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Sigma-Aldrich
LUDOX® SM colloidal silica, 30 wt. % suspension in H2O
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Sigma-Aldrich
Silicon dioxide, granular, ≥99.9%
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Supelco
Silica, 99.8%
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Supelco
Glass spheres
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Sigma-Aldrich
Silicon dioxide, fused (granular), 4-20 mesh, 99.9% trace metals basis
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Sigma-Aldrich
Silica, mesostructured, SBA-15, 99% trace metals basis
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Sigma-Aldrich
Silica, nanoparticles, mesoporous, 200 nm particle size, pore size 4 nm
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Sigma-Aldrich
Activated charcoal, suitable for cell culture, suitable for plant cell culture
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Sigma-Aldrich
Sand, white quartz, CP, beads
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Sigma-Aldrich
LUDOX® TM-50 colloidal silica, 50 wt. % suspension in H2O
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Sigma-Aldrich
LUDOX® CL-X colloidal silica, 45 wt. % suspension in H2O
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Sigma-Aldrich
LUDOX® TMA colloidal silica, 34 wt. % suspension in H2O
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Sigma-Aldrich
Sand, white quartz, ≥99.995% trace metals basis
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00
Sigma-Aldrich
LUDOX® AS-40 colloidal silica, 40 wt. % suspension in H2O
Sign Into View Organizational & Contract Pricing
SKUPack SizeAvailabilityPriceQuantity
100 g
Estimated to ship on March 21, 2025
$575.00