In most parts of China, especially in water scarce areas, emission standards are far from meeting the demand for water environment quality. Most watersheds, regions, or cities have a poor ecological environment quality of Class V, and the discharge of sewage or treated wastewater becomes a major source of water inflow, even with strict discharge standards, a poor Class V.

Kunming Lake, Daming Lake, Dongqian Lake, Xuanwu Lake, and West Lake have become the target pursuits for Class III water bodies to retreat from the city; The pursuit of Class III water quality in these areas includes lakes, Nansi Lake, Dongting Lake, Poyang Lake, and lakes; The pursuit goal of Class III water bodies in the Three Rivers and Three Lakes. Due to the decrease in water level, the "Technical Specification for Environmental Quality Assessment of Surface Water in Beijing (Trial)" has classified surface water into 10 categories for assessment.

The current water level and water quality standards for acrylic acid-2-acrylamide-2-methylpropanesulfonic acid copolymer AA/AMPS have a significant gap from the actual state to a certain extent. Strictly implementing sewage treatment discharge standards, strictly adhering to water quality standards, water quality standards, to a certain extent, has become a "goal" from a mandatory standard of actual discharge standards.