With the improvement of China's economic level, people's living standards have also slowly improved, and the car has become an indispensable means of transportation for every household. With the popularity of automobiles, let us experience the convenience of travel, and the environmental pollution caused by automobile exhaust is also a serious problem that cannot be ignored.
Speaking of the harm of car exhaust to pregnant women, we can first talk about the composition of car exhaust - car fuel is composed of carbon and hydrogen, and gasoline will produce carbon dioxide and water vapor, excess oxygen and so on when it is normally burned. These substances do not appear to be obviously harmful substances, but due to the combustion containing impurities or additives, the car fuel combustion is not complete, and some harmful substances are emitted.
According to social experiment statistics, the composition of automobile exhaust is very complex, up to more than 100 kinds. The pollutants emitted by cars mainly include carbon monoxide, hydrocarbons, hydrocarbons, PM2.5, and lead compounds, etc., which have a very adverse impact on our human health.
Car exhaust contains hydrogen compounds, it will breathe into our human blood, and can quickly accumulate into human bones and teeth, they will interfere with the synthesis of red blood hormone invasion of red blood cells, it will cause anemia, damage to our nervous system, severe may damage brain cells caused brain damage.
Car exhaust contains some allergic particulate matter and excessive inhalation of lead, which may induce allergies or poisoning in pregnant women, which may cause premature birth. According to a new U.S. study, the risk of preterm birth in clothing living in areas with more carbon monoxide or suspended particulate matter is 10 to 25 percent higher than that of pregnant women living in areas with fewer pollutants. Photochemical fumes produced by exhaust gases may cause pharyngeal tracheitis, causing pregnant women to cough constantly, and even severe episodes may lead to miscarriage.
Not only that, because the carbon monoxide emitted by the exhaust of the car is a toxic gas, if people inhale excessively, it will affect the body's blood oxygen supply, which is extremely unfavorable to pregnant women and the body is extremely unfavorable to the fetus. If the pregnant woman is in a serious air pollution environment for a long time, harmful gases will enter the baby's body through the placenta of the pregnant woman, causing fetal malformations and the probability of autism in the fetus born is very large. And according to studies, in the first trimester of pregnancy, if the mother inhales excessive amounts of lead, it means that up to 90% of the lead will be injected through the maternal placenta to the baby, resulting in congenital Tanaka pupil nervous system defects, resulting in fetal dementia.
Today Yanhua original ecological life sharing content temporarily here, hope to help everyone, if you like this content welcome to like, pay attention, collect, share, forward, what is the exchange of topics, please leave a message in the comment area, thank you!