What are the altitudes of Tongliao, Changchun, Jilin, Harbin and Jiamusi? Which cities have altitude sickness and hypoxia? Why?

Tongliao City in Inner Mongolia is between 400- 1300m above sea level. The altitude of Changchun is between 250 and 300 meters. The average elevation of Jilin City is188.3m..

Elevation of downtown196m. Harbin altitude 127.95 meters. Jiamusi altitude100-300m. There is no altitude sickness in most cities in Northeast China. Occasionally, hypoxia in some areas is also caused by haze weather or dusty weather!

Altitude sickness is a pathological reaction after human body is exposed to low pressure and hypoxia, and it is a common disease peculiar to plateau areas. Symptoms such as headache, dizziness, nausea and vomiting, palpitation, shortness of breath, chest tightness and chest pain occur. Patients with acute altitude sickness have dry cough, headache, dyspnea or cyanosis. A few patients with fulminant type have extreme dyspnea, irritability or delirium, and cough up a lot of pink foam-like sputum.

When the altitude reaches about 2700 meters above sea level, altitude sickness will occur.