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Dust sample statistical summary, June 2001
Machine-extracted title · confidence 90%Statistical analysis of dust sample concentrations collected during the World Trade Center recovery operations in June 2001.
NYC-WTC_000186516Page image
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NYC 9/11 Public Portal Document
Exterior Vacuum Dust Samples collected during Monte Study (values are in ppm) Number Collected Min 0.0 Max 21095.2 St. Dev 2642.2 Median 1194.1 Mean 1953.5
(raw data on next sheet)
The SAS System 15:28 Wednesday, June 27, 2001 220
Univariate Procedure
Variable=EXTDUST EXTDUST
Moments Quantiles(Def=5)
N 182 Sum Wgts 182 100% Max V 21095.2 99% 13676.9 Mean 1953.453- Sum 355528.5 75% Q3 202376“ 95% 6942.5 Std Dev 2642.234 Variance 6981400 50% Med 0^9470^ 90% 3753.8 Skewness 3.823669 Kurtosis 19.06993 25% 01 588.7 10% 336.4 USS 1.9581E9 CSS 1.2636E9 0% Min 0 5% 189.1 CV 135.2596 Std Mean 195.8554 1% 69.6
T:Mean=0 9.973957 Pr>|T| 0.0001 Range 21095.2 Num "= 0 181 Num > 0 181 Q3-Q1 1434.9 M(Sign) 90.5 Pr>=|M| 0.0001 Mode 0 Sgn Rank 8235.5 Pr>=|S| 0.0001
Extremes
Lowest Obs Highest Obs 0( 1) 11443.8( 178) 69.6( 2) 11485.6{ 179) 98.2 ( 3) 11922.6( 180) 121.6( 4) 13676.9( 181) 131.8( 5) 21095.2( 182)
NYC-WTC_000186516
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NYC-WTC_000186516Source: NYC Law Department, mirrored locally
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