A blue-green algae phenomenon broke out in Qijiang City, Province H. At this time, Wang Wu, the deputy mayor in charge of environmental protection work, had to suspend work due to overwork and the recurrence of old illnesses.Lin Hanjiang, a university professor who has made great achievements in the field of environmental protection, was appointed as the director of Qijiang Municipal Environmental Protection Bureau.After Lin Hanjiang took office, he discovered that there were greater environmental risks hidden behind the blue algae. However, the test reports of Qijiang water samples over the years had shown that they were qualified.With the support of the organization, Lin Hanjiang worked hard to find out the real cause of the blue-green algae outbreak, and was determined to not only solve the blue-green algae problem, but also completely solve the water quality problem of Qijiang water.However, it is easier to treat the symptoms than to cure the root cause. To fundamentally solve Qijiang's environmental pollution not only involves Qijiang City's largest industrial park, but also is related to night markets, boiler plants, etc. that are related to people's lives and livelihoods. It also faces economic development and ecological problems.Tough choices for environmental protection.But Lin Hanjiang always adhered to his original intention and was not afraid of difficulties. He not only restored Qijiang with green waters and green mountains, but also submitted a high-quality answer sheet for balancing ecological protection and economic development.