The Driving Forces of Point Source Wastewater Emission: Case Study of COD and NH<sub>4</sub>-N Discharges in Mainland China.

Int J Environ Res Public Health · 2019 · PMC6678656 · PMID 31319582

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a decreasing trendno p-value reported

According to Figure 1 , the water consumption of 10,000 Yuan showed a decreasing trend from 2004 to 2017, from 330.4 in 2004 to 95.5 in 2017, with an average annual decline rate of 9.12%.

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an increasing trendno p-value reported

At the same time, it is worth noting that an increasing trend in the emissions of COD and NH 4 -N was observed from 2004 to 2005 and 2010 to 2011.

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