Does Dalian need to be isolated from Zhaozhou at the end of August 2022?

No need. According to relevant reports, according to National Health Commission's Ninth Edition of Normalization Measures for Epidemic Prevention and Control, in August, 2022, people in Dalian and Zhaozhou passed the health code green code and big data travel code free of charge, because both places are low-risk areas, although they don't need to be isolated, they should report to the community.