Why a cigarette pollutes 15 times more than a Euro 3 diesel car

The results of a scientific study: cigarette smoke can produce up to 10-20 micrograms of fine particles. Much more than a diesel car.

How much does a cigarette pollute?

We still know little about the environmental damage caused by cigarettes, which adds to and overlaps with health damage, resulting in a single, gigantic waste of human lives. But a major study published in Environmental Pollution compared the pollution impact of cigarettes with that of other sources, such as cars with Euro 3 diesel engines . Researchers found that a single cigarette produces 15 times more fine particulate matter (PM2.5) pollution than a Euro 3 diesel engine when smoking.

  • During smoking, a cigarette produces a large amount of fine dust (PM2.5), which are released into the atmosphere with every puff. According to the study published in Environmental pollution  Cigarette smoking can produce up to 10-20 micrograms of PM2.5 per cigarette, depending on various factors, such as the type of tobacco and smoking method. This is a very high value for a single unit of consumption.
  • A Euro3 diesel engineDiesel engines, even those with Euro3 emission standards (which are old and less efficient than current standards), produce fine particulates, but in significantly lower quantities than cigarette smoke, especially when compared on a single basis. A Euro3 diesel engine generally emits around 0,03-0,1 grams of PM2.5 per kilometer traveled, but a cigarette can produce a similar or even greater amount of particulate matter in less than 10 minutes of smoking.

Do smokers pollute?

But beyond air pollution, there's environmental pollution, starting with the 14 billion cigarette butts discarded in Italy every year, everywhere. Even in parks, beaches, woods, and, of course, on sidewalks. Tobacco smoke contains nitrogen dioxide, methane , and carbon dioxide: with these compounds, it can pollute any indoor or outdoor environment. Smoking at home, for example, should be banned to prevent indoor pollution. Harmful emissions from tobacco products are equivalent to three million transatlantic flights. And for every 300 cigarettes, one tree is consumed in the tobacco drying process. This cultivation involves pesticides and pollutes the air and water.

Smoke and CO2

A single cigarette emits 14 grams of CO2, and over the course of an average lifetime, a person smoking a pack a day for 50 years emits 5,1 tons of CO2 into the atmosphere. To offset these emissions, it would be necessary to grow 132 seedlings for ten consecutive years.

How polluting is smoking?

An Italian study, published in the European Respiratory Journal , made another surprising discovery, comparing pollution data between 6 p.m. and midnight in two areas of Milan, in the same Brera district: one closed to traffic and therefore pedestrianized, and the other where cars pass. The result: the pedestrian area was found to be more polluted than the traffic-ridden one. It's all because of smoke.

How harmful is secondhand smoke?

The environmental damage caused by cigarettes to nonsmokers can be considered secondhand smoke. This damage adds to the health problems to which nonsmokers are exposed by tobacco users. In contact with them, secondhand smokers increase their risk of lung cancer and cardiovascular disease by 25-30 percent. These data suggest we should be more severe with smokers if they're around us, and we don't smoke, and perhaps even help them with the right foods to help them quit.

Cigarettes that are more harmful

All cigarettes are harmful, but some are more harmful than others . Smoking five minutes after waking, for example, means absorbing twice as many harmful substances as a cigarette lit an hour after waking. The same goes for a cigarette lit before bed, which is one of the most harmful cigarettes of the day.

What does a cigarette a day do?

Even just one cigarette a day has negative effects on our bodies and our health, significantly increasing the risk of cardiovascular and cerebral diseases (from heart attacks to strokes). A meta-analysis by researchers at the Cancer Institute in London, which reviewed 141 studies, calculated the risk of smoking just one cigarette a day. In men, the risk of heart attack and coronary heart disease was 48 percent higher than in non-smokers, and the risk of developing a stroke was 25 percent higher. In women who smoked just one cigarette a day, these increased risk percentages, compared to non-smokers, were even higher: 31 percent for stroke, 57 percent for heart disease.

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