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ACMT Misc Tox Jeopardy IrritantsCancer- Causing Famous Disasters MetHb Formers Name Alert (sound similar) 10 20 30 40 50.

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Presentation on theme: "ACMT Misc Tox Jeopardy IrritantsCancer- Causing Famous Disasters MetHb Formers Name Alert (sound similar) 10 20 30 40 50."— Presentation transcript:

1 ACMT Misc Tox Jeopardy IrritantsCancer- Causing Famous Disasters MetHb Formers Name Alert (sound similar) 10 20 30 40 50

2 -Potent herbicide & biocide -Manufacture of pharmaceuticals, perfumes, food suppls, & resins -WWI Lacrimator Acrolein

3 -Used to make plexiglass -Plastics, paper, dentistry, cosmetics, toys Acrylates

4 -Fumigant, solvent -Production of dye, lubricants, adhesives, drugs -Penetrates rubber -Sweet, chloroform odor has poor warning property Epichlorohydrin

5 -Fumigant (grain- banned, 1948) -Fire extinguishers -Lead scavenger in gasoline Ethylene dibromide (EDB)

6 Flu-like illness following exposure to heated vapors Polymer fume fever (similar to metal fume fever)

7 IARC Classification Group 1Carcinogenic to humans Group 2AProbably carcinogenic to humans Group 2B Possibly carcinogenic to humans Group 3 Not classifiable... to humans Group 4Probably not carcinogenic to humans

8 Agents Causing Liver Cancer Aflatoxins (mold) Anabolic steroids Arsenic= angiosarcoma Carbon tetrachloride (CCl4)?? Vinyl chloride (PVC manufacturing)= angiosarcoma

9 Agents Causing Bladder Cancer Aniline P-Phenylenediamine (PPD) Aromatic Amines Benzidine,  -naphthylamine Arsenic Aristolochia (herb): uretheral CA

10 Agents Causing Leukemia/ Lymphoma Benzene Butadienes (2A): lymphohematopoetic P-Phenylenediamine (PPD) (also bladder CA)

11 Agents Causing Lung Cancer Asbestos (mesothelioma) Arsenic Cadmium Chromium Coal Tar Products (also brain, skin scrotal CA) Nickel Tobacco smoke: benzo(a)pyrene

12 Bhopal, India Union Carbide release of: Methylisocyanate (MIC)

13 Toxic Oil Syndrome Spain, 1982 Rapeseed oil denatured with aniline (pulmonary disease)

14 Jake Leg Paralysis Triorthocresyl phosphate: -Jamacian ginger contaminated by TOCP -delayed sensory-motor neuropathy Also: Morocco: OPIDN after TOCP adulterated cooking oil

15 Epping England, 1965 Flour + methylenedianiline Toxic hepatitis “Epping Jaundice”

16 Turkey, 1956 Wheat + hexachlorobenzene Porphyria cunea tarda

17 Used as: oxidizer, pesticide, explosives, bleaching paper Chlorates

18 Used to make explosives & dyes Dinitrobenzene also Dinitrotoluene

19 Dyes, solvent, emulsifier (skin creams/ latex) Sensitizer= contact dermatitis Sensitizer= occupational asthma Ethylenediamine

20 O-Phenylenediamine (OPD) vs P-Phenylenediamine (PPD) Similarities vs different toxicities? Similarities: both are used in dyes O-Phenylenediamine (OPD) -Severe urticaria/ dermatitis P-Phenylenediamine (PPD) -Bladder cancer

21 -Used to manufacture dyes and pharmaceuticals -Gasoline additive -Intermediate in synthesis of: wood preservatives wetting agents for textiles frothing agents for ore dressing special lacquers metal complexes Xylidine

22 Acrylamides vs Acrylates -Similarities -Differences Similarities: polymer production Irritants Differences: Acrylamide- axonopathy

23 Dimethylamine vs Dimethylacetamide (DMAC) vs Dimethylformamide Dimethylamine -Breaks down to HCl, phosgene -P. neuropathy Dimethylacetamide -Paint remover, solvent for plastics -Potent hepatotoxin Dimethylformamide -Universal solvent, penetrates plastics -Potent hepatotoxin -Disulfiram rxn

24 Dinitrobenzene vs Dinitrotoluene -Similarities -Differences Similarities: -Used in explosives -MetHb -Yellowing of skin/ hair/ eyes -Optic neuropathy Differences: DNB -Hepatic necrosis, aplastic anemia DNT -Uncouples oxidative phosphorylation

25 Ethylene dibromide vs Ethylenediamine Ethylene dibromide -Fumigant, fire extinguishers, lead scavenger in gas -Hepatotoxicity -Strong irritant -Animal carcinogen (hemangiosarcoma, nasal CA) Ethylenediamine -Solvent, dyes, emulsifier -Sensitizer: contact dermatitis, occup asthma -MetHb

26 Odorant in natural gas Mercaptans (Mercaptomethane)


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