On December 16, 2019, "PetroChina XX oil production plant", an enterprise self-monitoring platform in Liaoning Province, discharged cod pollutants exceeding the standard. Lvse Jiangnan reminded the local environmental protection bureau of the situation through 12369 and microblog. See the picture below for details:

On December 17, 2019, we received a reply from the Environmental Protection Bureau: the Environmental Protection Bureau has gone to the site for inspection and filed a case for investigation.