What air quality index is bad for pregnancy?
Appropriate outdoor exercise is beneficial to the health of pregnant women. The current development of urbanization and industrialization has a greater impact on air quality. Pregnant women need to understand the local air quality index before traveling to prevent it from affecting their own health. This article mainly introduces What air quality index is bad for pregnancy? And which substances in the air are not good for the health of pregnant women?
What air quality index is bad for pregnancy?
Want to know what air quality index is bad for pregnancy? First, you must understand the local air quality index standards. The air quality index standards of each region and country are different and the display is different. You need to log in to the local air monitoring website to understand the air quality index and travel Suggestions, the following are China’s air quality standards and suggestions
0-50 | Level 1 Excellent | Suitable for outdoor activities and breathing fresh air |
51-100 | Level 2 Good | Can carry out normal outdoor activities |
101-150 | Level 3 Mild | Sensitive people should reduce physically demanding outdoor activities |
151-200 | Level 4 Moderate | Great impact on sensitive groups |
201-300 | Level 5 Severe | Everyone should appropriately reduce outdoor activities |
>300 | Level 6 severe | Try not to stay outside |
The above is the outdoor air quality index and suggestions. Indoor air quality monitor for home can be used to understand the air quality index indoors.
What are the harmful substances in the air that affect the health of pregnant women?
PM2.5, carbon monoxide, nitrogen dioxide, ozone, sulfur dioxide, and other common suspended particles (such as cigarette dust, lead ions) can affect health. Pregnant women should avoid carbon monoxide produced by burning materials because the affinity between carbon monoxide and heme is greater than that of oxygen. Long-term exposure to high concentrations of carbon monoxide will cause hypoxia in pregnant mothers with greater oxygen demand, which will affect the baby.
The dangers of PM2.5
Among harmful substances, the most harmful is PM2.5, which are fine suspended particles with a diameter of less than 2.5 microns and are easily attached to heavy metals and harmful substances and other carcinogens. Since the nasal cavity cannot remove particles below 10 microns, PM2.5 can easily enter the trachea and bronchi along the airflow, and even penetrate the air bubbles in the lungs and enter the blood vessels. It circulates throughout the body with the blood and is deposited in the body. Studies have shown that pollutant particles inhaled by pregnant women can enter the placenta through blood circulation. However, it is still not possible to conclude that this is a remnant of the placenta filtering pollutant particles or evidence that the pollutant particles have entered the fetus.
Three types of pregnant women should be careful about air pollution
Have cardiovascular-related diseases
Pregnancy increases the load on the heart. During pregnancy, the body of a pregnant mother who is carrying another little life will spontaneously adjust to supply the blood needed for the growth and development of the fetus. The output power of the heart will increase by about 30-50%, and the burden on the heart and blood vessels will be greater. Mothers with cardiovascular disease are at higher risk during pregnancy. Under the harm of air pollution, the cardiovascular system needs to bear double the load, which will lead to a shortage of mothers.
Have chronic respiratory disease
Pregnant women with chronic respiratory diseases, such as asthma and chronic obstructive pulmonary disease, are prone to irritation and difficulty breathing. The oxygen demand during pregnancy is higher than that of ordinary people. If the mother has difficulty breathing, the baby will also be hypoxic. It is recommended that mothers with the above diseases should pay more attention to the air quality, stay away from allergens (such as air pollution, volatile organic compounds), and try to avoid second-hand smoke.
Elderly mothers and first-time pregnant women
Older mothers may have higher blood pressure and greater cardiovascular stress than the average person, so they need to pay more attention. First-time mothers need more pressure to open their uterus during the first pregnancy, just like blowing up a balloon. They need more pressure for the first time, so they must be careful about air pollution aggravating the cardiovascular burden.
