EPA memorandum on WTC environmental data concealment, July 2004

NYC 9/11 Public Portal Document

NYC data claimed that these levels were either "not detectable" (below the detection limit), or claimed that there were no TEM tests at the particular location for that day.

NYC concealment of high asbestos levels 7 blocks north/northeast of Ground Zero on 9/12/01

The NYC tests using TEM on 9/12/01 included 5 air samples as far away as 10 blocks north and northeast from the perimeter of Ground Zero. The following table shows the air levels which were above the 70 s/mm^, and the changes made in the altered 2002 version.

After finding these alarming levels of airborne asbestos so far north of Ground Zero the day after the disaster, NYC never came back to retest to see if the levels had subsided. Much less did they warn anyone.

LOCATION s/mm^ COMMENT DISTANCE/DIRECTION FROM Ground Zero

CENTRE & 123.73 123.73 data as well as sampling 7 blocks NE of GZ perimeter, CHAMBERS ST. location deleted in NYC web version east of Broadway.

SPRUCE & 157.48 157.48 data as well as sampling 7 to 8 blocks NE of GZ GOLD ST. location deleted in NYC web Version perimeter, east of Broadway

GREENWICH & overload "Overload" means that there was so 5 blocks north of GZ perimeter CHAMBERS ST. much material on the sampling device, the laboratory could not make out the asbestos fibers. This data was included in 2002 version.

High air levels on 9/12/01 were UPWIND from Ground Zero

NASA photographs on 9/12/01 show that the WTC plume was blowing from the northeast to the southwest, thus blowing the plume towards New Jersey on the day these high asbestos levels were found to the north-northeast of Ground Zero. The 9/13/01 EPA press release also states that Brooklyn was "downwind" from the WTC on 9/12/01.’

Thus it is surprising that the air levels could have been this high on 9/12/01 when the overhead winds were blowing to the southwest. Several explanations may be possible.

One explanation could be that the wind was resuspending the asbestos from the streets and roofs that had been deposited the day before from the initial dust cloud.

Another explanation might be that winds in and around the streets of NYC were turbulent, blowing in opposite directions, swirling through the cannons of NYC. The NYnet project of the Brookhaven National Laboratory is studying the canyon effect in NYC for distributing particulates in different directions from the overhead wind direction. This is to assist responses to dirty bomb and bioterrorism attacks.

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