Sanitation is a subordinate unit of Urban Management Bureau, just as Urban Management Bureau is a subordinate unit of Urban Construction Bureau.
Urban management is urban management, which manages the appearance of the city, such as lampblack, noise, sewage and illegal buildings, which affect the appearance of the city and must be enforced.
Sanitation is the cleaning and maintenance of the city appearance, such as the replacement and cleaning of garbage bins, and the daily dirty street phenomenon, all of which need the manual intervention of the urban management department.
The environmental protection bureau has the right to define whether a citizen's behavior is illegal, and also has the right to punish enterprises or individuals that are not environmentally friendly and illegal. The EPA is different. Generally speaking, it is sweeping the road, but it has many functions. In short, these two bureaus are very fat and have a lot of money to earn.