Cigarette smoke is pm how much?

We often see the weather forecast will report the value of pm2.5, if there is a haze outside, basically the value of pm2.5 is exceeded, this time we have to go out and wear a good mask. Because pm2.5 can be directly inhaled into the lungs, and rely on the body's immunity can not be discharged. In addition, indoor pm2.5 can also appear, especially if someone in the family smokes.

Cigarette smoke is PM how much

Instrumental tests show that the distance from the closest distance to light a cigarette within the PM2.5 more than 7600 micrograms / cubic meter, is more than 100 times the national standard!

Experts say: the amount of PM2.5 inhaled by people within one meter from the smoker is more than 20 times the national standard. If the body is weak, such as people suffering from asthma, bronchitis and lung diseases, it will seriously affect their health.

What does cigarette smoke contain

Tobacco smoke released during combustion contains more than 3800 known chemical substances, most of which are harmful to humans, including carbon monoxide, nicotine and other alkaloids, amines, nitrile, intoxication, phenols, alkanes, aldehydes, nitrogen oxides, polycyclic aromatic hydrocarbons, heterocyclic compounds, hydroxyl compounds, heavy metals, organic pesticides, and so on, in a wide range of categories. They have a variety of biological effects, causing a variety of harm to the human body.

What does pm2.5 mean

PM, known as particulate matter (particulate matter), is an important indicator for evaluating air quality in a particular place.PM includes PM2.5 (respirable particulate matter in the atmosphere with a diameter of less than 2.5 micrometers), PM10 (respirable particulate matter with a diameter of less than 10 micrometers) and TSP (total suspended particulate matter with a diameter of less than 100 micrometers). suspended particulate matter). According to the concentration of particulate matter, the corresponding indicators are obtained, such as PM2.5, PM10, indicating the severity of particulate matter pollution, the higher the indicator, the more serious the pollution month.