November 8, 2021, Shaanxi Province, key monitoring enterprises self-monitoring information public platform shows that Shaanxi xxx wastewater treatment plant total discharge total nitrogen in 2021.10.27 - 2021.10.29 exceeded the emission standards, PECC through 12369 and microblogging to the local environmental protection bureau to reflect the situation, see the following chart:

December 3, 2021 received a specific reply from the local ecological environment 12369 Complaint Center: for the enterprise exceeded the standard has been issued a supervisory letter requesting rectification as soon as possible.