How long does it take for the Level 2 response to heavy pollution in Heze to be lifted?

One week. Heze City's Level 2 response warning for heavy pollution weather generally takes a week to be lifted. Implement orange warning level II response emission reduction measures, strictly implement production suspension and restriction measures, improve the operating efficiency of pollution control facilities, reduce the frequency of material transportation and other measures to achieve emergency emission reduction targets and ensure that all emission reduction measures are implemented.