NYC Law Department release
Independent mirror · updated as the City releases more · v1.2.6
← Document results/DEP Box 53/E-Mail 1/2/02
Document / 57 pages

WTC environmental lab report and data distribution, January 2002

Machine-extracted title · confidence 65%

57-page lab report documenting World Trade Center environmental test results distributed to multiple federal, state, and local agencies including CDC and EPA.

NYC-WTC_000130550–000130606

Folder label: “E-Mail 1/2/02

Page image
Scanned page image, NYC-WTC_000130558
OCR text

OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document

• NYC / ER (Dec 28) - Particulate Monitoring (Dataram)

o Particulate levels noted at three locations (Stations L, N, R) were below the OSHA TWA. o Instruments operated approximately 6 hours. o Station L values ranged from 15.1 to 554.3 ug/m3 with an average of 41.6 ug/m3. o Station N values ranged from 8.4 to 100.0 ug/m3 with an average of 20.3 ug/m3. o Station R values ranged from 1.9 to 88.9 ug/m3 with an average of 23.9 ug/m3.

• NYC / ER (Dec 29) - Particulate Monitoring (Dataram)

o Particulate levels noted at three locations (Stations L, N, R) were below the OSHA TWA. o Instruments operated approximately 6 hours. o Station L values ranged from 18.8 to 174.3 ug/m3 with an average of 35.4 ug/m3. o Station N values ranged from 14.2 to 131.2 ug/m3 with an average of 23.7 ug/m3. o Station R values ranged from 9.6 to 99.9 ug/m3 with an average of 23.2 ug/m3.

• NYC / ER (Dec 30) - Particulate Monitoring (Dataram) o Particulate levels noted at three locations (Stations L, N, R) were below the OSHA TWA. o Instruments operated approximately 6 to 612 hours. o Station L values ranged from 0.1 to 139.4 ug/m3 with an average of 14.5 ug/m3. o Station N values ranged from 0.1 to 82.8 ug/m3 with an average of 13.7 ug/m3. o Station R values ranged from 1.2 to 53.2 ug/m3 with an average of 19.1 ug/m3.

• NYC / ER (Dec 25) - Volatile Organics (Mobile Laboratory)

o Incorrectly noted in December 27 Sampling Situation Report that no samples were collected on this day. o Benzene exceeded OSHA TWA PEL (1 ppm) at one location (North Tower) in the debris area at ground level. o 2 of the 3 of the other samples (Washing Tent and Austin Tobin Plaza) did not note any benzene above the detection limit (20 ppbv).

• NYC / ER (Dec 28) - Volatile Organics (Mobile Laboratory)

o Benzene did not exceed OSHA TWA PEL (1 ppm) at any of the four locations monitored, including in the debris area at ground level. o Benzene was not detected above the detection limit (ranging from 20 ppbv to 50 ppbv) in 3 of the 4 locations monitored (Washing Tent, Austin Tobin Plaza, South Tower), including in the debris area at ground level.

• NYC / ER (Dec 29) - Volatile Organics (Mobile Laboratory)

NYC-WTC 000130558

OCR can misread numbers and units. Confirm readings against the page image before using them.

NYC-WTC_000130558Source: NYC Law Department, mirrored locally

Related records

Browse subjects →

Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.

Same-box records

Filed elsewhere

More like this page

Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.

Page similarity is temporarily unavailable or this page has no indexed vector.

Buildings in this record

Machine-extracted building matches; verify each source. Buildings, never households.

Others also read

Readers open these alongside this record — through an Ask answer, the same folder, or indexed similarity. Not a claim they are about the same event.

NYC-WTC_000130435 · Box DEP Box 53

Summary of asbestos air sampling results from October 1, 2001, including PCM and TEM standard comparisons for NYC and NJ locations.

Filed in the same folder

NYC-WTC_000130438 · Box DEP Box 53

Draft special investigative audit report on environmental data from the World Trade Center site prepared by IT Corporation.

Filed in the same folder

Compare copies and versions →