NYC-WTC_000232844

NYC 9/11 Public Portal Document

STUYVESANT HIGH SCHOOT, LEAD-IN-WIPE-DUST MERCURY PCB’S SILICA (RESPIRABLE FIBERGLASS HYDROCARBONS DIOXINS WIPE SAMPLE METALS SAMPLE DUST) Date #of lead Lead Meeeiiey Concentration Range of Range of Results Indoor Outdone Indoor Air Plenum Tndnor Outdoor Sample Cone. On Cone. On Cone. (3 samples per Indoor Cone. Outdoor Cone. (U) samples Readings Reading Surfaces Cone. Readings Reading Floor Window (mg/m'’) day) (11 samples (1 sample day) per (lay) (2 samples (1 sample Range of Cone. (1 sample (2 samples (1 sample O'g/'ft’) Sill (M^cm2) pee day) pee day) pee day) (2 samples pee per day) pee day) per day) (uU/fV) day) (ng/m') (mg/m’) (mg/m’) (ng/m~) 01 30.02 .3 air samples w ere .3 wipe samples for I 2 air samp es fur silica were eullecled. I'liloriiforni ,3 wipe samples f I blank) were 3 air samples for metals were collected lor I’GBs were Silica was not deteeted on any of the was deteeted eolleeted tor dioxin, fhe levels found eolleeted. Hie levels .il airborne mercury, l.lercurv collected The i’CB samples eolleeted ill both indoor in these samples are below the metals did not exceed the limits was found in all results ofall samples (Main XYSDOIT niiiilelines (>1'2.5 lu'.'in’. ofdeleel’on in anv ol Ilie samples three samples at a samples were below. lobby 0.049 eveepl for eliromiuni which was llie reporting limits ppir and 2'"' also found in 'he blank of 2.0 ug'saiiii)le. lloor Indue eiilraiiee 0 14 ppiTi). 02'06 02 5-'' lloor Bek"v 3 air samples were 3 wipe samples lor 3 air sample were eolleeted for 3 air samples lor metals were Hallway and Guidance collected tor I’CBs were lie NO liydrocarbons were collected, the levels ofairbome Room 635 Level mercury vapor. collected. The ?CB detected in Ilie aiuhlieal panel tncTals did not exceed the limits .After the samples lesalls of all were present abeie the limits of ordclcel.oii ill .my id llic samples siiiliices are are blank samples were below deteetion in any ol the samples. e.veept ler eln'omium and above Ihc corrected, the the reporting limits aluminum wliieh was also IoiiikI guidance max. at 2 0 ug.'sample. III tlie blank. limil 01' 40 concenlrations in the Indoor and outdoor samples fall below .he liiiiit of detection Relov GiiiitaiiLe T evel (I'ollow up samples!

c; I TY_2 IMG 10 0_0 0 513 86 2 b

NYC-WTC_000232851