OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Table 4. Lead
Tier Action Lead (settled dust) Lead (indoor air) Level Basis Level Basis 1 Aggressive >40 ug/tf 1) HUD standard >1.5 ug/m’ NAAQS cleaning. If levels for floors (intended to persist, take 2) Residential keep 99.5% of additional action to Lead Hazard children below reduce exposure. Standard (TSCA 30ug/dl) . Section 403) II Maintain 40 ug/tf to 25 25 ug/f? is HUD 1.5 ug/m" to 1 ug/m’ is the recommended ug/ft^ (or screening level 1 ug/nr (or calculated value cleaning methods. background) for floors backgiound) using EPA’s Consider additional lEUBK Lead monitoring. Model for Children* III No further action <25 ug/tf (or Level could also 1 ug/m’ (or Level could also background) be set at that background) be set at that found in found in background, or background, or unaffected, areas, unaffected, so that no areas, so that no increase in risk increase in risk due to lead due to lead would be would be expected. expected.
* EPA developed the Integrated Exposure Uptake Biokinetic (lEUBK) Lead Model [EPA, 1994] to evaluate multimedia lead exposure to children in residential settings. EPA established a goal of attaining a 95% probability that blood lead levels in children be less than 10 ug/dl [EPA 1994a]. Setting the indoor air lead concentration at 1 ug/m^ (and using background concentrations for lead in water, diet, soil and dust) the lEUBK Lead Model estimates that 96% of the blood lead probability distribution falls below 10 ug/dl. See Appendix E for model run data files and graph of blood lead probability distribution.
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NYC-WTC_000199597
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Draft assessment summarizing eight months of monitoring data regarding air, dust, and water contaminants at the WTC site and surrounding areas.
31 shared non-person entities · 1 shared topics · similarity 0.988
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000176140
Appendix document outlining health protective screening values and contaminants of concern for WTC site workers and Lower Manhattan residents.
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EPA staff distributed an environmental laboratory report to federal and city agencies on May 15, 2002.
29 shared non-person entities · 1 shared topics · similarity 0.987
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Interim final report from EPA Region 2 detailing a background study of environmental conditions at the World Trade Center site.
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Table listing volatile organic compound (VOC) sampling sites and dates outside of Ground Zero from September 2001 to January 2002.
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machine-extracted · confidence unavailable · Check page ↗20 shared non-person entities · 1 shared topics · similarity 0.969
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000160878
EPA notice of chain-of-custody and benchmarks presentation for WTC Taskforce meeting on April 8, 2002.
17 shared non-person entities · 1 shared topics · similarity 0.969
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000151128
Report establishing health-based screening levels for the indoor environment with cross-agency representation.
14 shared non-person entities · 1 shared topics · similarity 0.965
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000125845
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22 shared non-person entities · 1 shared topics · similarity 0.965
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164862
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17 shared non-person entities · 1 shared topics · similarity 0.965
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NYC-WTC_000145869
Interim final report from EPA Region 2 detailing a background study of environmental conditions at the World Trade Center site.
Similarity score 0.998 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000176160
Draft assessment summarizing eight months of monitoring data regarding air, dust, and water contaminants at the WTC site and surrounding areas.
Similarity score 0.988 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.980 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000162222
EPA staff distributed an environmental laboratory report to federal and city agencies on May 15, 2002.
Similarity score 0.980 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000151128
Report establishing health-based screening levels for the indoor environment with cross-agency representation.
Similarity score 0.974 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164862
Document introduction describing a cross-agency group tasked with identifying contaminants and establishing health-based screening levels.
Similarity score 0.973 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Machine-extracted building matches; verify each source. Buildings, never households.
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