Wildfires cause air quality to decline in Lake Tahoe, California, U.S. 2021-08-18T10:31:10.511Z Release time: 2021-08-18 18:20:24 【Editor: Li Peiyun】 Release time: 2021-08-18 18:20:24 【Editor: Li Peiyun】 Source: chinanews All life articles on 2021-08-18