Memo on Ground Zero residential cleanup forum, May 2002

NYC 9/11 Public Portal Document

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'The importance of HP Environmental's results is the discovery of themicroscopic size of the particles. The EPA's tests are now irrelevant." . "The building owners are responsible for this." "The trucks of debris being carted to the barge at Pier 26 should bewetted down and covered and we can all,see. that is not always happening." "Lead contamination is definitely a concern. There is no safe level."

Joel Kupferman, Attorney with the NY Environmental Law & Justice Project: "The World Trade Center was built without the guidance of these typesof health and safety laws."

Dr. Chang, Professor of Environmental Medicine from NYU, reporting ontesting done by a team of scientists in the areas of Inhalation Toxicology, Neurotoxicology, Pulmonary & Critical Care, Epidemiology & Air Pollution. Please note: This data was extremely technical and difficult to comprehendin layman's terms. Dr. Chang was reluctant to translate this data ina way that might reveal his personal opinion about any of it, thoughhe did say more than once, 'we just don't know'. Here's the best I coulddo at deciphering it. Dust samples taken from the ground at various locations in the areaof Ground Zero are comprised of mostly large particles: "Only a verysmall fraction of the dust conatins the most dangerous, microscopic particles." Samples showed: A very high pH factor, which is an irritant to the nose & upper respiratorytract. causes discomfort but does not present danger. . arge concentration of lead, occassionally surpassing the EPA'ssafety standards A large concentration of carbon, often surpassing the EPA's safetystandards Dr. Chang also said his team and a similar team of scientists at RutgersUniversity hope they will have the funding necessary to continue monitoringthese levels for the duration of the WTC cleanup process.

There was an additional panelist, whose name & organisation I did notcatch. She was a Specialist in the area of Radioactive Contamination. Addressing the question of whether or not there is radioactive contaminationof the air, soil and water, she said: ".. .the probability is extremelyremote." This issue is monitored by both the Radiation Control Off iceof the Department of Health and private, independent agencies.

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