NYC Law Department release
Independent mirror · updated as the City releases more · v1.2.6
← Document results/DEP Box 08/EPA OIG LAW
Document / 620 pages

NYC Law Department letter regarding EPA draft report excerpts, July

Machine-extracted title · confidence 100%

Correspondence from NYC Corporation Counsel providing comments on excerpts of a draft EPA evaluation report regarding the WTC response.

NYC-WTC_000146129–000146748

Folder label: “EPA OIG LAW

Page image
Scanned page image, NYC-WTC_000146541
OCR text

OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document

4. Provide information for later retrospective assessments of associations among adverse health impacts and air quality indicators related to the disaster.

te locations . During this period, air sampling will continue in roughly five regimes, referenced as:

I. -- -- Hot zone. The hot zone at and close to ground zero whrere portable and battery operated sampling takes place;

2. Nearby r.one. A slightly enlarged perimeter approximately 3 to IO blocks beyond the "hot zone"where residences and business are in operation. Note that these sites are fixed temporary with stable roof top locations and power. Some of the hot zone sites do extend into this area. For convenience they ae areas are separated based on location as well as methodology.

3. General population zone. Existing ambient monitoring stations operated by the NYDEC and NJDEP in the boroughs and NJ for background and transport (2 to 7 miles), depending on wind flow patterns.

4. Landfill r.one. The Fresh Kills landfill on Staten Island where investigation and eventual disposal occurs.

5. Diesel zone .In the vicinity of major temporary diesel generators (if deployed) and primarily to track particulates. There are no monitoring recommendations at this time.

1donitoring parameters

Rationale

The sampling plan focuses on the two most important parameters of interest, asbestos and particulate matter. The most intense sampling for asbestos has been occurring in the hot zone. This plan expands the asbestos sampling to the outer zones refemced above, and adds partcle matter sampling at allzones beyond the hot zone. Additional parameters covering a suite of possible pollutants are sampled for in the hot zone.

List of parameters

Asbestos.Known use in building construction, and some evidence of presence during early monitoring. Known inhalation carcinogen

PM 10 and PM2 S:. Respirable fractions of dust; NAAQS exist. PM.IO expected to be elevated relative to . PM2.s close to hot zone.

Dioxins. PCBs. P AHs. metals. inorganic acids. Hazardous air pollutants and possible emission and combustion products from site.

voes. General characterization of prevalent pollutants for public concern. Criteria gases. Measurements ongoing at existing stations, provides supplemntary data.

NYC-WTC_000146541

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

NYC-WTC_000146541Source: 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

No available related records indexed in this group.

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.

Compare copies and versions →