V' .c b wila.sviiiiiisWiL i''jLu\J^ Editors: Louis Rothschild.

Nearly a tbe sequent* of events leading up to the month later the wort of the Italian re association's final pqbbc aciaouocetoctis searcher.

FILE NAME: Talc (TALC) DATE: 1972 Jan DOC#: TALC432 DOCUMENT DESCRIPTION: Grantham Proposition .

The de emphasis on controlling oxides of nitrogen, a partner in photo chemical reactions, can cause the "smog" problem to spread further into rural areas and lead to a buildup of oxides of nitrogen and pose yet another potential health risk.

____Filters ANALYSIS REQUESTED: Lead, Mercury, Other Asbestos Fiber Count YOUR IDENTIFICATION NUMBER name or sample description RESULTS OF ANALYSIS 29685 686 687 688 689 690 ju 3 * * 7 3 2 3 4 5 6 Fiber 6/ml > 5p 3. 7 20 26 23 22 30 29691 29692 blank #1 blank #2 * The values reported for blanks an A a calculated average for the total number of fibers to be found on the entire filter

. * ' J: t STABILITY unstable ^fx^enaVSAcxposure to 105F or higher ifi STABLE temoeratures may lead to rapid aecompositi o n with gassing.____ * INCOMPATSABtILrIoTYn(gMateoriaxls,i1aa qmvotnf) g or reducing agents, HA^ARDOl-'R DECOMPOSITION PRODUCTS Decomposition products are flammable.

lead him to predict that of the roughly 230,000; the?

*>ok df entific s and "hera. ishing nemo* matat e and -lead inocy. neou$ sfltaArch ct al: <bser- ;enta7:264* i MJ: with 19SS; Fig 2. -- Some asbestos bodies found in digest of colon carcinoma and mesentery (original magnification X320).

This can lead to serious lung disorders: asbestosis and lung cancer.

In addition to asbestos, shipyards must be prepared to deal with welding fumes, silicosis, lead, hydrocarbons and carcinogens yet undiscovered.

of a peripheral nerve leads to a remarkable over production of Schwann cells in the diMal nerve stump reaching a point a w hich these cells are applied in multiple layers around each single axon.

However, it has long been recognised that heavy exposure to dusts, such as quartz and asbestos, may lead to loss of function and, in the case of asbestos, to cancer of the pleura and of the lung itself.

lead him to predict that of the roughly 250,0001 asbestos industry workers today, about 93,0Q0i will die unnecessarily of occupational cancer, ii A.icfw'r.cn*tSc'inAulaaorTworAcrs- "In.the next 10 to 15 years we will enter the ts-1 sa\TiyK!

(c) (1) Section :502(a) of the Clean Air Act is amended to lead as follows: '`Administrator. ' "(a) The term `Administrator" means the Administrator of the Kniiionmental Protection Agency." 42 USC 1857 note

734 THE lANClt, APRIL 3, 1976 Occasional Survey GENETIC RISKS OF VINYL CHLORIDE Peter F.