The goal of this observational study is to analyze the acute effects of meteorological factors and air pollution on cardiovascular system. The main question it aims to answer is:
1. How do meteorological factors and air pollution affect cardiovascular system?
2. What is the interaction between meteorological factors and air pollution on cardiovascular system?
Participants will:
1. Provide their health data obtained in physical examination, including but not limited to blood pressure, blood routine, urine routine and B-ultrasound.
2. agree that the research team will use their personal identification number, gender, age, education level and other information for statistical analysis of the data.