The Study Based on Intelligent Big Data Technology for Water Resources Audit

Table 2

Domestic sewage water quality of a village in this province.

Index	COD (mg/L)	BOD (mg/L)	NH + -N (mg/L)	TP (mg/L)	PH
Ranges	150∼350	100∼200	20∼45	3.0∼5.8	6.5∼8.4