The harmful effects of secondhand smoke
Cigarette smoke has been the International Agency on Cancer Research (International Agency for Research on Cancer IAFC) under the World Health Organization (WHO) has said
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The components of cigarette smoke, including toxic substance as: Nicotine, Carbon Monoxide (CO), tar, benzene, formaldehyde, ammonia, acetone, arsenic, hydrogen cyanide, small molecules in the smoke Leaf, the carcinogen. However, cigarette smoke contains over 3,800 chemicals, including over 200 kinds of harm to health.
Nicotine: A colorless, turns brown when the fire and smell the drug when exposed to air. Nicotine is absorbed through the skin, mouth and nasal mucosa or inhalation. Average smokers take in lung 1 2 mg nicotine per cigarette smoking. Racing smokers nicotine to the brain quickly, within 10 seconds after inhalation.
Control Agency and the US Drug Administration (FDA) classified into the group of substances nicotine pharmacological properties essentially addictive, like drugs, heroin, cocaine. Addiction to nicotine effects mainly on the central nervous system in the presence of nicotine receptors in the brain structure. This alkaloid substance impact the receptors in the nervous system with the neurotransmitter dopamine. Dopamine is a chemical in the brain adjust the desired use of the substance, causing excretion of adrenalin (tachycardia, peripheral vasoconstriction, contraction and inhibition of secretion of stomach acid). However, the body will quickly nicotine is metabolized to cotinine and excretion in the urine.
Carbon monoxide (CO GAS): Gas CO have high concentrations in cigarette smoke are absorbed into the blood, associated with stronger affinity of hemoglobin with oxygen 20 times. The average smoking 1 pack of cigarettes per day, the amount of hemoglobin leads to reduced oxygen transfer to the organization, causing anemia organizations and perhaps contributing to the formation of arterial plaque.
Small molecules in cigarette smoke: Cigarette smoke contains many irritants gaseous or small format. This stimulants cause structural changes in the bronchial mucosal proliferation leads to bronchial glands, mucous secreting cells and loss of cilia cells. These changes increase the mucus and reduce the efficiency of purification of mucus-cilia carpet. most of these changes are reversible when smoking cessation.
The carcinogens: In smoke more than 40 substances, among them including aromatic compounds with closed loop as benzopyren have carcinogenic properties. These chemicals act on the cell surface of the airways causing chronic inflammation, destroyed nest containers, cell transformation leading to dysplasia, and malignant type of chemical product
Definitions smoke: There are 3 types of cigarette smoke: mainstream smoke, the smoke flow additives and environmental cigarette smoke
Field mainstream smoke (MS): the flow of smoke inhaled by smokers few body. It is inserted through the origin of gas cigarette
Field side smoke (SS) is the smoke from a burning cigarette emits into the air, it does not include the smoke exhaled by smokers.
About 80% of the cigarette was burning away. Environmental cigarette smoke (ETS) is a mixture of secondary smoke flow and smoke exhaled mainstream smoke of contaminants as well as diffusion through cigarette paper and cigarette between aspirations.
ETS is very similar to MS: it includes more than 3,800 chemicals. Surprisingly, the SS has many carcinogenic mixture sharply on MS. This is because SS contaminants other than MS in place MS.SS also standalone products may exist in other forms, eg nicotine primarily solid in mainstream cigarette smoke, but in gaseous of environmental cigarette smoke.
The size of the particles is very different in different kinds of smoke. The size of the solid particles in the range of 0.01 to 1 micron in-line secondary smoke. When women smoke stream diluted compassionate than the size of the particles become smaller. Because of the size of particles in the gas stream smaller side, so easy in deeper in the lung organization.
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Posted in Transportation/Automotive Post Date 10/10/2016