For most pregnant women, especially those in the second and third trimester of pregnancy, they often choose to go out in a vehicle driven by their family members due to inconvenient mobility and family worries. However, issues such as odor pollution and exhaust pollution from new cars still require their attention. 1. New car odor If you just bought a new car, you should pay attention to the odor inside the car, especially the economy car. Due to cost reasons, a large number of decorations made of plastic, artificial leather and other materials are used in the car, and the smell produced is intolerable to most people.