IoJc' 4/15/7, *1 ' t- * ' l t Monitoring Point L,i'i:uclT Loading 2 Quality Control Laboratory ,' west 3 Quality Control Laboratoryf east 4 Lunchroom 5 Hulk leading Tower 6 Dryer Room 7 hugging Seat 8 .

The train traveled approximately 2.3 miles from point of derailment until front trucks hit o switch track at Clay Bank, Ohio leading into Peabody Coal Company mine, causing tank car to roll off of trucks coming to rest upside down next to switch track.

Source - "Leading Cause of Death in Selected Areas of the World" 1972 Report, Senate Committee on Labor and Public Welfare. g.

Repair and extend the lead-sheet covered area on this bench to accommodate the maximum number of batteries that might be on "charge'* at any one time. 4.

Its relative affinity for toxic metals such as csdnium and mercury Is not presently known, nor have its chelating properties In complex Ionic solutions been characterised. . .Copper isd lead concentrations In biologically treated waste water after flocculation with aluminum sulfate (125 mg/1)'are a function of the KTA present (Nilsson 1971).

Ferry explained the present competitive state of the US talc market the various regulations being imposed on talc producers and sporadical adverse publicity which leads to consumer advocate pressures on the business Ferry couched that approach so Villa could see that there talc generally was was a possibility that what good for his talc also was good for Ferry and I then jointly explaine hodw the US talc status was more politically oriented than fact oriented We explained how DA hired Lewin as an expert and got themselves in a box with the wild answers he obtained on all talcs including Villas talc We explained.

John Stockham production Total US production 1969 valued at an estimated 10,648,000 was 125,936 tons The United States utilizes about fourth of the world's production of asbestos practically all of it is imported from Canada and Africa Figure 1 graphically illustrates domestic supply and consumption 3 ASBESTOS EMISSIONS 3.1 Industrial Sources Before entering into the main source of asbestos emissions that is through commercial manufacturers processes it is worthwhile to consider briefly other less mission sources These may be listed as obvious but important 8 Rock Outcrops e Farming 6 Construction fi Talcum Powder 3.1.1 Rock Outcrops It has been pointed containing rock outcrops out previously in Table 1 in very many areas of the that asbestosUnited States It is interesting to note that in 1920 Staten Island was once considered a large enough outcrop that mining on a commercial scale was undertaken there Emission from such outcrops will occur due to the natural eroding processes of earthquakes temperature wind rain Thus wind and borne erosion contain asbestos particles products will inevitably 3.1.2 Farming Farming of the soil in areas containing asbestos rock will cause the emission of the soil are always dusty fibers Such actions as tilling of operations unless of course it happens to be wet the extent of the emissions will depend on IIT RESEARCH INSTITUTE 4 the concentration of asbestos in the soil Studies have been conducted on the effect of such emis- sions on the health of the local population The evidence though not very conclusive suggested that asbestosis could be caused by agricultural employment 3.1.3 Construction The outcrops of containing rock will give rise to emissions whenever construction is undertaken Hence such activity as excavating for housing pipe laying and road making must be considered as a source 3.1.4 Talcum Powders Talcum powder is a mineral rock dust very closely related mineralogically to asbestos The main difference lies in the fact that talcum powder is characterized by its has a platy morphology fibrous nature while asbestos The fact ficant fibrous that talc is very content now leads frequently found with a signito a very important situation since the total quantities of talc mined in the U.S. exceeds that of asbestos |: metic It was pointed out by Cralley that the majority of cos- talcs contain significant quantities of fibrous particles Virtually everybody from babies up is exposed to cosmetic talc and so are exposed to the threat of asbestos bodies Apart from the ably in industry as in the production of Another large use is of crops cosmetic use talc is used very consider- for example a filler and as a lubricant pharmaceutical tablets and rubber goods as a carrier for pesticides in the spraying On a more exotic note there on the use of talcum for polishing with stomach cancer because of its has been recent publications rice and its association asbestos content Even more 11T RESEARCH INSTITUTE 6 Te a Doe oe ug inet children may be endangered by 2 tte ee in ou. be balloons Ces above discassion on talc has been included for com- should pleteness in this report concerning asbestos Certainly it not be neglnegleected cted when considering the health effects and hazard of asbestoasbestoss fibers Other studies discussing the presence of asbestiform fibers in the mining of talc are those of Siegal and of Greenberg 6 3.2 Manufacturing Processes 3.2.1 Introduction Several tasks preliminary to the manufacture of asbestos products are potential emission sources These are common to all asbestos processing They include such functions as unloading and storage of milled asbestos subsequent transport of the bagged asbestos to the bag opening area fluffing of the compacted fibers and a mixing process where asbestos fibers are dry mixed with other materials The bagged asbestos is usually unloaded from railway boxcars moved to storage areas and finally transported to bag opening areas by lift trucks Opportunities exist during each of these operations for bags to become damaged and spill fibers to the atmosphere The amount of emission from the bag opening and dumping processes depend upon the degree to in some instances the bags are cut which the open with tasks are enclosed sharp knives and the contents dumped into a container or onto a conveyor belt The compacted fibers from packing at the mill are fed through a willow or Moody fluffer which fluffs up and separates the fibers This operation may also be employed as a blending stage wherein several grades of fibers are thoroughly mixed HT RESEARCH INSTITUTE 7

I wish, therefore, that they remain indefinitely in the hands of the Department of Environmental Health, University of Cincinnati, as the final authority for whomever may be concerned and justified in this examination of the facts concerning the metabolism of lead in man

In be tween, viewers are sub jected to the pitiful specta- . de of workers--one only 19 years . old--who--are rsus pected of having fatal liver ' cancer; to the grisly dis eases it causes--collapse of tbe finger -' bones and changes in blood vessels and liver fibrosis leading to fatal' hemorrhage; and finally, the grimmest statistics from the vinyl chloride - plants: . five times as much brain cancer, 10 to 11 times as much liver cancer, twice as much lung -cancer and- lymphatic- tu mors. ' ' Full of-gloom and doom, the voice of Morton Dean intones: "The fear now . . the Time Bomb Theory.

.*+.mamwf-- AMERICAN CYANAMI O COM PA N V WAYNE, NEW JERSEY 07470 Chicago, 111 (MacGregor Lead) Attn: Accounting Dept.

The purpose of this survey is to develop data leading to low cost, reliable solutions to these problems.

Barber has already determined that the Vinyl Chloride Standard and the events leading up to its promulgation should be re-examined and has advised EDF accordingly.

The undersigned pointed out that in-a study done'by University of California at Berkeley, at the request of and supported by Pittsburgh Corning comparing Unibescos and 4 leading asbestos-containing thermal pipe insulation materials Indicated that none of these products would be used in the construction industry ,554without exceeding the 12 fibers/ML TLV and that this study intensified the research effort, in Pittsburgh Corning to find an asbestos substitute.

.__ 2.0 bA..... 2,*, `ft 7 (o ___ IVhO 9 Total 1 hSO .1.8 745 6( O) ro 7) o> r> O Q " Pi O 1 * 7 <W- rv o D n o Q O Oo .o COLORITE 006378 % \ t R.A. loje 4/15/7 I if Monitoring Point . 1Truck Loading 2 Quality Control Laboratory) west 3 Quality Control Laboratory) east 4 Lunchroom 65 hulk leading Tower Dryer Room 87 bagging Seat .

We intend to bring together the leading experts on PCBs to insure that the latest and most authoritative information is available for careful consideration in developing a regulatory program.