Did Chaohu lake have a nucleic acid test on September 7?

No, emergency headquarters, Chaohu issued a notice on September 7th to carry out regional nucleic acid testing, and it didn't start until September 8th, so no nucleic acid testing was conducted in Chaohu on September 7th. Chaohu Lake is a county-level city under the jurisdiction of Anhui Province, which is managed by Hefei City. It is located in the middle of Anhui Province, south of Jianghuai Hill, between Hefei and Wuhu, bordering hanshan county in the east, Feidong County in the northwest, Wuwei County in the south, Lujiang County across the Zhaohe River in the southwest and Quanjiao County across the Chuhe River in the northeast.