OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Mr. Bernard P. Orlan January 15, 2002 Wipe Samples for Metals Page 2 H. S. for Leadership & Pub. Service (894M) ATC ProiectNo. 15-19125-0290
There are no established regulatory values for these metals on indoor surfaces. The New York State Department of Environmental Conservation (NYSDEC) has clean-up objectives for metals in soil but not for interior surfaces. There are no Occupational Safety and Health Administration (OSHA) standards that are applicable to this circumstance.
Wipe Sample Results
Metals were detected in all eight samples. Al, Cr, Cu, Fe, Mg, Mn and Zn were found in all samples. Ni was detected in three samples and Cd was detected in two samples. Copper, iron, magnesium and zinc were also recovered from the blank. Co and Mo were not detected in any of the samples. Metal concentrations are shown in the following table. Sample area was 1 ft’.
TABLE METAL CONCENTRATIONS fmicrograms/samplel METAL________ RANGE NO. OF SAMPLES LOCATION OF MAX. ALUMINUM (Al) 10.5-109 8 Main Lobby Floor
CADMIUM (Cd) 0.304-0.330. 2 Room 1106 Floor
CHROMIUM (Cd) 0.263- 1.71 8 Room 903 Floor
COBALT (Co) **BRL 0
COPPER* (Cu) 4.36-57.2 8 Cafeteria Serving Window (0.342)
IRON* (Fe) 31.9-546 0 Main Lobby Floor (5-89)
MAGNESIUM* (Mg) 52.3 - 174 ' 8 Main Lobby Floor (35.4)
MANGANESE (Mn) 0,596-6.91 8 Main Lobby Floor
MOLYBDENUM (Mo) BRL 0
NICKEL (Ni) 0.514-0906 3 Main Lobby Floor
ZINC* (Zn) 14.4-183 8 Room 1106 Floor (4.64) *Metal also detected in blank, concentration is shown in parentheses. **BRL = Below Reporting Limit
CITY_21MC100_002854421
NYC-WTC_000215149
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NYC-WTC_000176008
Laboratory report detailing wipe sample results for metals collected at P.S. 234M playground to evaluate potential contamination.
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Laboratory report providing results of metal wipe samples collected at PS 89M in December 2001 to evaluate building contamination.
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Laboratory report providing results of metal wipe samples collected at PS 89M in January 2002 to evaluate building contamination.
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NYC-WTC_000174796
Laboratory report providing results of metal wipe samples collected at PS 89M in December 2001 to evaluate building contamination.
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Laboratory report providing results of metal wipe samples collected at PS 89M in January 2002 to evaluate building contamination.
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000176008
Laboratory report detailing wipe sample results for metals collected at P.S. 234M playground to evaluate potential contamination.
Similarity score 0.980 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000174796
Laboratory report providing results of metal wipe samples collected at PS 89M in December 2001 to evaluate building contamination.
Similarity score 0.959 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000174796
Laboratory report providing results of metal wipe samples collected at PS 89M in December 2001 to evaluate building contamination.
Similarity score 0.956 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000176008
Laboratory report detailing wipe sample results for metals collected at P.S. 234M playground to evaluate potential contamination.
Similarity score 0.955 (not a probability)
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NYC-WTC_000174796
Laboratory report providing results of metal wipe samples collected at PS 89M in December 2001 to evaluate building contamination.
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