An aminobiphenyl is an amine derivative of biphenyl.
The three most widely used culprits---Yellow 5, Yellow 6 and Red 40---contain compounds, including benzidine and 4-aminobiphenyl, that research has linked with cancer. So yes they are often bad for you.
Cigar is a big cigarette containing more nicotine. If you inhale cigar smoke, it's not good for you. You absorb the nicotine through the surfaces of your mouth and you get the kick. That's all. Don't inhale the smoke.
DEP or direct etching, plastic, astrafoil ink was manufactured from the benzidine based azo dye "Direct Black 38" in an aniline liquid carrier. Other colored Azo dyes were also used. It was withdrawn and banned in the United States of America during the early 1960's due to health concerns and its relation to bladder cancer in draftmen using it. Investigation during the 1980's of human exposure to the dye demonstrated certain metabolites were formed within 7 days after exposure which were isolated and identified by gas chromatography-mass spectrometry as: benzidine, 4-aminobiphenyl, monoacetylbenzidine, and acetylaminobiphenyl. Formation of the deaminated and N-acetylated analogs of benzidine, which have enhanced mutagenicity and lipophilicity effect on the large intestine and could, in some cases, be related to the onset of bowel cancer in later life.
Cigarette smoke contains over 4,000 chemicals, including 43 known cancer-causing (carcinogenic) compounds and 400 other toxins. These include nicotine, tar, and carbon monoxide, as well as formaldehyde, ammonia, hydrogen cyanide, arsenic, and DDT.
Here's all 81 of them: Acetaldehyde Acetamide Acrylamide Acrylonitrile 2-Amino-3,4-dimethyl-3H-imidazo[4,5-f]quinoline (MeIQ) 3-Amino-1,4-dimethyl-5H-pyrido [4,3-b]indole (Trp-P-1) 2-Amino-l-methyl-6-phenyl-1H-imidazo [4,5-b]pyridine (PhlP) 2-Amino-6-methyldipyrido[1,2-a:3',2'-d]imidazole (Glu-P-1) 3-Amino-l-methyl-5H-pyrido {4,3-b]indole (Trp-P-2 2-Amino-3-methyl-9H-pyrido[2,3-b]indole (MeAaC) 2-Amino-9H-pyrido[2,3-b]indole (AaC) 4-Aminobiphenyl 2-Aminodipyrido[1,2-a:3',2'-d]imidazole (Glu-P-2) 0-Anisidine Arsenic Benz[a]anthracene Benzene Benzo[a]pyrene Benzo[b]fluoranthene Benzo[j]fluoranthene Benzo[k]fluoranthene Benzo[b]furan Beryllium 1,3-Butadiene Cadmium Catechol (1,2-benzenediol) p-Chloroaniline Chloroform Cobalt p,p'-DDT Dibenz[a,h]acridine Dibenz[a,j]acridine Dibenz(a,h)anthracene 7H-Dibenzo[c,g]carbazole Dibenzo(a,e)pyrene Dibenzo(a,i)pyrene Dibenzo(a,h)pyrene Dibenzo(a,i)pyrene Dibenzo(a,l)pyrene 3,4-Dihydroxycinnamic acid (caffeic acid) Ethylbenzene Ethylene oxide Formaldehyde Furan Glycidol Heptachlor Hydrazine Indeno[1,2,3-cd]pyrene IQ 92-Amino-3-methyl-3H-imidazo[4,5-f]quinoline) Isoprene Lead 5-Methyl-chrysene 2-Naphthylamine Nitrobenzene Nitrogen mustard Nitromethane 2-Nitropropane N-Nitrosodi-n-butylamine (NDBA) N-Nitrosodi-n-propylamine (NDPA) N-Nitrosodiethanolamine (NDELA) N-Nitrosodiethylamine (DEN) N-Nitrosodimethylamine (DMN) N-Nitrosoethylmethylamine (NEMA, MEN) 4-(N-Nitrosomethylamino)-1-(3-pyridinyl)-1-butanone (NNK) N'-Nitrosonornicotine (NNN) N-Nitrosopiperidine (NPIP, NPP) N-Nitrosopyrrolidine (NPYR, NPY) Polonium-210 (Radon 222) Propylene oxide Safrole Styrene Tetrachloroethylene o-Toluidine (2-methylaniline) Trichloroethylene Urethane (carbamic acid, ethyl ester) Vinyl acetate Vinyl chloride 4-Vinylcyclohexene 2,6-Xylidine (2,6-dimethylaniline) ****** You missed out ethanol (the same stuff as in a pint of beer or large glass of wine - around 16 grams of it). Unlike most of the above, which are probable or possible human carcinogens or only carcinogenic to rodents, ethanol is classified as a 'Known Human Carcinogen'. The amount of carcinogens in a pint of beer (2 units of alcohol) is equivalent to that taken in by an average smoker in around a year. So the recommended 30 units of alcohol a week for a male equates to about 15 years of smoking. (That's in terms of weight. In the more realistic terms of molar mass, it's over a lifetime of smoking.) But then, ethanol is produced endogenously by the human body (along with at least two of the above). We're all doomed anyway!
Nicotine may be cited as one of the most well-known additives of cigarettes, but there are other substances added by tobacco companies that pack a more powerful, and dangerous, punch.Cigarette smoke contains over 4,000 chemicals -- a big jump from the tobacco, rolling paper and filter tip. Of those 4,000 additives, there are nearly 50 known carcinogens -- cancer-causing substances -- in each cigarette. Some of these include cadmium, a substance used to produce batteries; and formaldehyde, the liquid most commonly recognized for preserving amphibians in science labs. Both of these have been proved to cause cancer in both humans and animals.In addition to cancer-causing chemicals found in cigarette smoke, there are many other irritants found in cigarette smoke.Ammonia, acetone and arsenic are household names because of their use in cleaning products, nail-polish remover and rat poison. These are also included in cigarette smoke. Some chemicals, including ammonia, have been added by tobacco companies to mask the harsh taste of the tobacco. These chemicals also help to convert the nicotine to a gaseous form. This helps the addiction-forming nicotine to be absorbed into the blood stream more effectively.Each time a smoker lights up, they are exposing themselves -- and all others around them -- to carcinogens, chemicals and secondhand smoke.Cigarettes that have been analyzed in labs have revealed a very large number of different substances, due in part to the fact that the original chemicals placed into a cigarette are burned, and produce a plethora of byproducts from the burning. Hence a comprehensive list of chemicals is near impossible, however a list can be formulated based on the amount produced and its effects of health. Of the harmful and possibly harmful chemicals, these include:Acetaldehyde - 980 micrograms to 1.37 milligramsAcrylonitrile - formerly 1 to 2 milligrams. This product was used as a fumigant in tobacco. Its use has since been discontinued.4-Aminobiphenyl - 0.2 to 23 nanograms per cigaretteArsenic - unknownBenzene - 5.9 to 75 microgramsBeryllium - 0.5 nanograms1,3-Butadiene - 152 to 400 microgramsCadmium - 1.7 micrograms1,1-Dimethylhydrazine - unknownEthylene oxide - unknownFormaldehyde - unknownHeterocyclic amines - unknownHydrazine - 32 microgramsIsoprene - about 3.1 milligramsLead - unknown2-Naphthylamine - 1.5 to 35 nanogramsN-Nitrosodi-n-Butylamine - 3 nanogramsN-Nitrosodiethanolamine - 24 to 36 nanogramsN-Nitrosodiethylamine - up to 8.3 nanogramsN-Nitrosodimethylamine - 5.7 to 43 nanogramsN-Nitrosodi-n-Propylamine - 1 nanogram4-(N-Nitrosomethylamino)-1-(3-Pyridyl)-1-Butanone - up to 4.2 microgramsN-Nitrosonornicotine - 14 microgramsN-Nitrosopyrrolidine - 113 nanogramsN-Nitrososarcosine - 22 to 460 nanogramsPolonium-210 - variable, depending on soil and fertilizer used to grow tobaccoPolycyclic aromatic hydrocarbon - 28 to 100 milligramso-Toluidine - 32 nanogramsVinyl chloride - 5.6 to 27 nanogramsChemical quantities are unknown generally due to the fact that either a process of measuring them reliably is not possible or the value varies for too much for unknown reasons.Nicotine is an allelochemical - one produced naturally by the plant - not an additive. All plants, including fruit and vegetables, produce their own allelochemicals, yet very little research has been done on their toxicity and carcinogenicity (apart from those of one particular plant!).All the above 'nasties' will be found in the combustion gases of most carboniferous substances, such as domestic gas, oil, petroleum, coal, candle wax, wood and incense. Several impartial studies have suggested that exposure to the fumes from gas heaters and wood-burning stones is more harmful than exposure to tobacco smoke.