Passive smokingActive smoking, what is passive smoking

Active smoking, of course.

Some brain-disabled people, in order to be alarmist, hear that passive smoking is more harmful, and they know that it is nonsense with their knees, but unfortunately, a lie becomes the truth when it is told 1,000 times.

Active smokers smoke secondhand smoke at the same time as second-hand smoke, and much closer to second-hand smoke than passive smokers.

If you have to say that secondhand smoke is more harmful, this is debatable, but ignoring the basic fact that active smokers smoke both cigarettes, then it is not a matter of raising the bar to say that passive smokers suffer more.

Passive smoking, also known as indirect smoking, refers to the process by which a non-smoker is exposed to the smoke caused by the smoker and is forced to inhale the smoke of the environment.

Some studies from the United States have concluded that the relative risk of lung cancer in non-smokers living with smokers is that of non-smokers exposed to smoke in public places, indicating that the increased risk of lung cancer in passive smoking is not significant. Scientists generally believe that the relative danger is less than that does not say anything.

Is passive smoking more harmful than active smoking?

This formulation itself is inappropriate, smokers are not not breathing while smoking, but also inhale environmental tobacco smoke, that is to say, smokers not only actively smoke, but also passive smoking, if from the perspective of harm, smokers must be more harmful than passive smokers, how can it be said that passive smokers are more harmful? This argument is obviously a reversal of the concept of environmental tobacco smoke, confusing environmental tobacco smoke with side-stream smoke, thus drawing the wrong conclusion, or subjectively exaggerating the harm of environmental tobacco smoke. As long as we understand the process of formation of environmental tobacco smoke, this argument is self-defeating.

It is true that passive smokers are more intolerant of smoke than active smokers, because smokers are accustomed to a "smoky" environment.

Secondhand smoke is a little heavier than smoking yourself.

1.Passive smoking, also known as second-hand smoke and environmental tobacco smoke, refers to the mixed smoke formed by the tobacco smoke released from the combustion end of cigarettes or other tobacco products and exhaled by the smoker;

2.It is the act of involuntarily inhaling the smoke exhaled by other smokers, also known as forced smoking or indirect smoking, which consists of two kinds of smoke, one is the smoke exhaled by the smoker, which is called mainstream smoke, and the other is the smoke produced when the cigarette is burned, which is called lateral flow smoke, and non-smokers are considered second-hand smoke no matter what kind of smoke they inhale;

3.It is the most harmful and serious indoor air pollution, one of the major causes of death in the world, and secondhand smoke has more than 4,000 harmful chemicals such as tar, ammonia, nicotine, suspended particulates, and dozens of carcinogens.

1. Passive smoking, also known as second-hand smoke and environmental tobacco smoke, refers to the mixed smoke formed by the tobacco smoke released from the combustion end of cigarettes or other tobacco products and exhaled by smokers;

2. It is the act of involuntarily absorbing the smoke exhaled by other smokers, also known as forced smoking or indirect smoking, which is composed of two kinds of smoke, one is the smoke from the smoker's exhalation, the orange shed is called mainstream smoke, and the other is the smoke produced when the cigarette is burned, which is called lateral flow smoke, and non-smokers are considered second-hand smoke no matter what kind of smoke they inhale;

3. It is the most extensive and serious indoor air pollution, and one of the major causes of death in the world, with more than 4,000 harmful chemicals and dozens of carcinogens such as tar, ammonia, nicotine, suspended particles, etc.

According to relevant data, the number of people who die from passive smoking in China every year is more than 100,000, and every withered life is an important reason to refuse passive smoking.

However, there is still a significant proportion of the population who are unaware of the health damage caused by passive smoking, and the proportion of passive smoking in indoor workplaces, public transportation, indoor public places and other places is still quite high.

Experts point out that there are many factors that lead to the seriousness of passive smoking in China.

Among them, 4 are the main reasons: the high smoking rate among men, and there are almost no restrictions on smoking places; lack of effective anti-smoking laws and regulations; The social atmosphere of not smoking, not respecting cigarettes, and not giving away cigarettes has not yet been formed; There is a lack of awareness about the dangers of passive smoking.

Experiments have shown that the tobacco smoke formed by burning a cigarette contains up to 180 nanograms of benzopyrene. This results in a 30 cubic metre room with a concentration of 6 nanogram cubic meters, which is six times higher than the sanitary standard (1 nanogram cubic meter). In order to dilute it to the allowable concentration, it is necessary to replace 30 cubic meters of air in the room 5 to 6 times per hour, and the ** air conditioner and ordinary air conditioner commonly used in hotels and families do not have the function of filtering and removing ultrafine particles such as benzopyrene, and it is difficult to remove cigarette smoke once it is formed indoors.

In a poorly ventilated environment, a passive smoker who was exposed to tobacco smoke for just one hour was roughly equivalent to smoking a cigarette with a moderate tar content.

Even a short period of passive smoking can have the following consequences: it can lead to upper respiratory tract damage in healthy people, making asthma patients more frequent and sicker; It increases blood viscosity, damages the lining of blood vessels, causes insufficient blood supply to the coronary arteries, and increases the risk of heart attack.

This is despite the extent to which the public has become aware of the dangers of passive smoking in recent years.

What is a passive smoker?

a.At a meeting at a venue, eating at a restaurant, or on public transportation, there are people who smoke quietly in the vicinity, and those who are nearby are passive smokers.

b.There are people in the family who smoke regularly, and those who don't smoke are passive smokers.

c.Inhaling smoke from a smoker's breath for more than 15 minutes a day is called a passive smoker.

Correct Answer: a