Other (e.g. Water use )

Discharge of Wastewater and Major Pollutants:
The total amount of industrial and urban household wastewater discharged during the year was 46 billion tons, which was 4.7% more than the previous year. Among this, 21.24 billion tons were industrial wastewater, which was 2.5% more than the previous year; and 24.76 billion tons were urban household wastewater, which was 6.6% more than the previous year. In the industrial wastewater, the total amount of COD discharged was 13.336 million tons, which was 2.4% less than the previous year. Of industrial waste water, the discharge of COD was 5.119 million tons, down 12.3% against previous year. The amount of COD discharged in municipal household wastewater was 8.217 million tons, which was 5.0% higher than the previous year. The amount of ammonia nitrogen in the wastewater was 1.297 million tons, which was 0.7% more than the previous year. Among this, the amount of ammonia nitrogen discharged in industrial wastewater was 404,000 tons, which was 4.0% less than the previous year; and the amount of ammonia nitrogen discharged in municipal wastewater was 893,000 tons, which was 3.0% more than the previous year.
In 2003, the industrial wastewater discharge standards attainment rate was 89.2% across the country, which was 0.9% higher than the previous year. The attainment rate for key enterprises was 90.5%, which was 1.1% higher than the previous year. The attainment rate for other enterprises was 77.7%, which was 2.6% lower than the previous year.

Reference: Report on the State of the Environment of China (2003) State Environmental Protection Administration of China