– Desalination and Water Treatment, 2013, 51 (10-12), 2269-2274. [Online] Web of Science (08.04.2013) Arseen – naha- ja kehasiseste vähkide tekitaja Veest eemaldamise protsess nanofiltreerimismeetodil OTSING Wiley Online Library - saab materjali erinevate ainevaldkondade kaupa otsida carcinogens AND groundwater AND “health risk” in all fields 446 vastet, millest 263 artiklit ja 183 raamatut Krewski, D; Thomas, R. D. (1992). Carcinogenic Mixtures. - Risk Analysis, 12 (1), 105–113. [Online] Wiley Online Library (11.04.2013) Kantserogeensed segud, mis on varieeruva ja mitmekesise koostisega, nende kantserogeensuse hindamine võrreldes puhaste ainetega. Toksikoloogilised ja epidemoloogilised laboratoorsed uurimused. OTSING RCS Journals - sisaldab keemia ja loodusteaduste artikleid groundwater AND health AND problems AND carcinogens OR cancer OR carcinoma
There are several steps that can be taken to help prevent water pollution from getting worse. Keep Machinery in Good Working Order The oil used to lubricate engines in all types of machines needs to be changed regularly. When the oil is changed, it presents a number of environmental hazards if not disposed of properly. As oil moves throughout the crank case of an engine, it breaks down into many different types of carcinogenic and even mutagenic compounds. When a leaky engine releases this oil into the street, it runs to the sewer and from there it becomes part of a laundry-list of contaminants that makes its way into waterways. Even a small drip of oil can turn into a disaster when you consider the fact that there are more than 250 million cars on the road in the United States alone. Even if all of these vehicles were in perfect working order, the disposal of the used oil would still be a huge issue.
to be 150 mg/person/day or 15 mg/m3. · Reproduction toxicity No effects in any of the organs of the reproductive system of either males or females (for mice). No information is available on the reproductive effects of aniline in humans. · Teratogenicity Toxic starting from 21 mg aniline/kg bw/day. c) Carcinogenicity Aniline is currently classified as carcinogenic, category 3 and labelled with R40 "limitedevidence of a carcinogenic effect". Animal studies have shown an increase in tumors of the spleen in rats exposed to aniline hydrochloride. EPA calculated an oral cancer slope factor of 5.7 x 10-3 (mg/kg/d) -1 and an oral unit risk estimate of 1.6 × 10- 7 (µg/L)-1. d) Genotoxicity and mutagenicity Aniline did not induce unscheduled DNA repair in primary human or rat hepatocytes. In
com/details.php?p=146 (23.03.2016) 2. Coca-Cola. 2011 http://antimarketing.by/nauchnye-issledovaniya/coca-cola/ (23.03.2016) 3. Coca-Cola. 2014 http://www.coca-colarussia.ru/brands/coca-cola/coca-cola (03.03.2016) 4. Excessive Cola Consumption Can Lead To Super-sized Muscle Problems, Warn Doctors. 2009 https://www.sciencedaily.com/releases/2009/05/090519075420.htm (03.03.2016) 5. Fanta «» http://otruta.com/details.php?p=46 (23.03.2016) 6. FDA Urged to Prohibit Carcinogenic "Caramel Coloring". 2011 http://www.cspinet.org/new/201102161.html (23.03.2016) 7. Mueller, N. T. Odegaard, A. Anderson, K. Yuan, J. Gross, M. Koh, W. Pereira, M. A. Soft Drink and Juice Consumption and Risk of Pancreatic Cancer: The Singapore Chinese Health Study. 2009 http://cebp.aacrjournals.org/content/19/2/447.abstract (03.03.2016) 8. Muir, H. Science of Mentos-Diet Coke explosions explained. 2008 https://www.newscientist
exchanges (SCE) in peripheral lymphocytes of exposed persons were seen in some studies but not in others. Interpretation of these results is difficult because of the small number of subjects, co- exposure to wood dust, and lack of details in the reports. At best a weak positive response is indicated, at the site of initial contact. Carcinogenicity Studies in animals Formaldehyde has been tested in chronic animal studies and a number of other experimental models to assess its carcinogenic potential in different species. Inhalation of concentrations of 10 ppm (12 mg/m 3 ) or above leads to clear increases in nasal tumor incidence in rats. Marked non- neoplastic pathological lesions of the nasal cavity were present at tumorigenic concentrations. In contrast, no significant numbers of tumors were seen in mice and Syrian hamsters following chronic exposure to concentrations up to 14.3 or 30 ppm (17 - 36 mg/m 3 ), respectively.
addressing a range of medical conditions. But using marijuana at a young age can result in structural and functional deficits of the brain. This could cause you to develop weakened verbal and communication skills, lowered learning capabilities and a shortened attention span. In addition to the possible effects on your brain, smoking marijuana may also be hazardous to your developing lungs. Marijuana smoke contains 50% to 70% more carcinogenic hydrocarbons than tobacco smoke. You may have heard people argue that marijuana is a "gateway drug" to harder drug use. Some say this is a myth, others insist it is a fact. The truth is that there is a link. Research shows that the earlier you start using marijuana, the more likely you are to become dependent on it or other types of drugs later in life. Marijuana is also known as : Blunt, dope, ganja, grass, herb, joint, bud, Mary Jane, pot, reefer,
one or more carbon rings to which hydrogen atoms are attached according to the formula CnH2n. Cycloalkanes have similar properties to alkanes but have higher boiling points. The aromatic hydrocarbons are unsaturated hydrocarbons which have one or more planar six-carbon rings called benzene rings, to which hydrogen atoms are attached with the formula CnHn. They tend to burn with a sooty flame, and many have a sweet aroma. Some are carcinogenic. These different molecules are separated by fractional distillation at an oil refinery to produce petrol, jet fuel, kerosene, and other hydrocarbons. For example, 2,2,4- trimethylpentane (isooctane), widely used in petrol, has a chemical formula of C8H18 and it reacts with oxygen exothermically: 2 C8H18(l) + 25 O2(g) → 16 CO2(g) + 18 H2O(g) (ΔH = −10.86 MJ/mol of octane) The amount of various molecules in an oil sample can be determined in laboratory. The
Another way to reduce the required be submitted to food regulation (e.g., addi- amount of salt and phosphate is to use micro- tives defined in the Council Directive 89/107/ bial transglutaminase (MTG). It is a calcium- EEC 1989). Most food additives are consid- independent enzyme that catalyzes the ered safe. However, some are known to be polymerization and crosslinking of proteins carcinogenic or toxic. Allergic reactions to through the formation of covalent bonds colorings and hyperactivity from phosphates between protein molecules (Carballo et al. have been reported for sensitive individuals. 2006; Heinz 2007). Although the addition Moreover, some nonmeat ingredients, such of MTG had beneficial effects on reducing as vegetables, egg, or milk proteins, contain cook loss and increasing hardness and chewi- substances that cause allergic reactions in
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