Air pollution returns to pre-lockdown levels in China after falling 40 percent

Air pollution in China dropped significantly during the worst of the country’s coronavirus outbreak, falling to far below normal levels before rising again with the return of China’s workers to their jobs.A study from the Centre for Research on Energy and Clean Air first reported by Bloomberg shows air pollution dipping to levels far below last year’s springtime measurements during March and April, when many Chinese remained at home due to…