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These results could lead to changes in the medical surveillance and medico-legal manage ment of colorectal cancers in subjects occupa tionally exposed to asbestos. two particular advantages: information on cancer incidence and anatomical site from cancer registries and data on occupational exposure derived from an employment exposure matrix developed within the employing organisation and based on workshop measurement data.

ROM GEORGE H.

KAGAKU TO KOGYO (OSAKA) 4_9 (3> , 90-97 (1975) "TOXICITY OF ORGANOTIN CHEMICALS ADDED AS STABILIZERS AND THEIR USE AS PESTICIDES" Moriji Miyake and Sanae Fujita Introduction Compounds which possess Sn-C bonds, the so-called organotin compounds, may be divided into the following 4 types: RSnX^, R^SnX^, R^SnX, and R^Sn (R= alkyl or aryl group).

However, the idea of complete additivity of effects is not essential to our arguments, and a variety of other assumptions would lead to effectively the same conclusion. 3.

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MaRdiisvoenr BlaMckotuaniltains TMeonudnotyains MaRdiivseorn 45o301' 13o 45' 30' 15' 112o 15' 45o STUDY AREA 40 22 18 14 21 20 12 17 23 1619 1 24 2,5 27 28 8 9,32 10 33 34 36 37 38 39 13 35 3 25 26 29 30 31 7 11 6 15 51 42 41 43 46 44 45 47 50 48 49 45' 44o301' 13o 45' Base from U.S.

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Toxicology, 11 (1978) 45-54 Elsevier/North-Holland Scientific Publishers Ltd.

be protected tsy copyright r i i s i CARCINOGENICITY OI^VINYL CHLORj}3^ VinyLtdenZ Ctflcttttf AND VINYLIDENE CHL5RTOT--------------- C.

FSOM GEORGE H* FARRAH ENVIRCNMENTAL HEALTH LABORATORY ALCOA TECHNICAL CENTER INDUSTRIAL HYGIENISTS / April 17, 1972 RE: INDUSTRIAL HYGIENE NEWSLETTER - ASBESTOS DUST EXPOSURES Mr.

kg 418 mg/k* 1 8/kg >1.6 g/kg 1 g/kg 1 8/kg 1 g/kg >320 tng/k* 167 mg/kg 867 mg/kg I S g/kj Methotrexate 2-Nitrofluoren# cCaprolaettne Glycidaldehyde Ethyl-p-toluenesulfonate 1.0 g/kg LS g/kg 1.3 g/ki 200 mg/kg 1 g/kg 5-Udo-2'-deoxyuridine 1 g/kg 1,4- Butaaeeultone 138 mg/kg 2- Methyl-4-<dimethylemino >azobenzene 345 mg/kg iV-Nitroeodiethylemine Thioaeetamide 132 mg/kg L13 yiw1 1-Phenyl-3,3-dimethyltriaaeM 232 mg/kg Thiourea 1 g/kg* S-Amino 1.2.4-triaxoie >5 g/kg Propytenimine B-Propioiactone 365 mg/kg 406 mg/kg Lead acetate 15 g/kg* Tttanoeene dichloride >680 mg/k| Beryllium sulfate A/-Methyl-iV'-iutro-iV-nitrooofUtniriine U g/kg 66 mg/kg 2-Fluorenamine 132 mg/kg' 4-NitroquinoliM N-aside 190 mg/kg L3-Properesultone 467 mg/kg Methylaaoxymethanol acetate 106-160 me) A/'Njtmeoethyiurw 600 mg/kg* N-Acetoxy-iV-2-fluorenylacetamide >660 mg/k| e-Naphthylisothioeytnate 162 mg/kg' Phenanthre

Mutchler Lead in Hair Among Exposed Workers..................................................... ......................... .