What is considered second hand smoke?

What is considered second hand smoke?

Secondhand smoke is the combination of smoke from the burning end of a cigarette and the smoke breathed out by smokers. Secondhand smoke contains more than 7,000 chemicals, of which hundreds are toxic and about 70 can cause cancer.

What are examples of secondhand smoke?

Secondhand smoke and vaping aerosols come from burning or heating tobacco through a cigarette, cigar, pipe, hookah, or electronic cigarette. They also come from the air a smoker exhales while smoking.

How harmful is secondhand smoke?

Secondhand smoke causes lung cancer in adults who have never smoked. Nonsmokers who are exposed to secondhand smoke at home or at work increase their risk of developing lung cancer by 20–30%. Secondhand smoke causes more than 7,300 lung cancer deaths among U.S. nonsmokers each year.

What is 2nd and 3rd hand smoke?

Second-hand smoke or vapour – smoke or vapour that is exhaled (mainstream smoke or vapour) or the smoke that comes from the end of a burning cigarette (sidestream smoke) Third-hand smoke or vapour – the residue and gases left on clothes, cars, or in a room after someone smokes or vapes.

How do you know if you have second-hand smoke?

Secondhand smoke exposure can be measured. This is done by testing indoor air for chemicals found in tobacco smoke, such as nicotine. Your healthcare provider can also test your own level of exposure. This is done by testing the level of cotinine in your blood, saliva, or urine.

What is the difference between 1st 2nd and 3rd hand smoke?

While first-hand smoke refers to the smoke inhaled by a smoker and second-hand smoke to the exhaled smoke and other substances emanating from the burning cigarette that can get inhaled by others, third-hand smoke is the second-hand smoke that gets left on the surfaces of objects, ages over time and becomes …

Should I be worried about third hand smoke?

The nicotine in third-hand smoke residue reacts with common indoor air pollutants, such as nitrous acid and ozone and goes on to form carcinogens, or compounds that may cause cancer, according to researchers from the Massachusetts General Hospital for Children.

What is secondhand smoke and why is it so dangerous?

Secondhand smoke is the combination of smoke from the burning end of a cigarette and the smoke breathed out by smokers. Secondhand smoke contains more than 7,000 chemicals, of which hundreds are toxic and about 70 can cause cancer. 1,2,3,4

How is second-hand smoke worse than first-hand smoke?

The rates of death and disease from actively smoking are higher than the rates for people who inhale secondhand smoke. According to some studies, second hand smoke can be more harmful. No it is the same thing. It is not any worse and certainly not any better but you certainly should try to avoid secondhand smoke.

Is secondhand smoke as dangerous as smoking a cigarette?

Actually second hand smoke is considered more dangerous than the mainstream smoke that is actually inhaled. The smoke that comes off the end of the cigarette has a higher concentration of cancer-causing agents.

How bad is second-hand smoke?

Exposure to secondhand smoke raises the risk — by as much as 30 percent — that others will get lung cancer and many other types of cancer, it can lead to emphysema, and it is bad for your heart. Smoke makes your blood stickier, raises your ” bad ” LDL cholesterol, and damages the lining of your blood vessels.