RETRACTED: Construction of Surface Water Pollution Prediction Model Based on Machine Learning

Table 3

Real values of test sample data.

Time	Water temperature (°C)	pH	Transparency (cm)	Conductivity (μs/cm)	Dissolved oxygen (mg/L)	Ammonia nitrogen (mg/L)	Chlorophyll a (mg/L)	Algal Q index
20200301	2.21	8.31	19	1571	9.51	0.74	17.25	2.54
20200401	9.05	8.47	18	1482	8.92	0.59	18.04	1.34
20200501	17.19	8.87	18.2	2260	9.78	0.63	35.91	1.31
20200601	21.15	8.76	18.35	2055	8.47	2.04	68.58	0.71
20200701	25.23	9.15	18.51	1706	6.02	1.21	78.31	0.57
20200801	27.72	8.71	18.42	1831	5.47	0.59	69.83	0.60
20200901	15.11	8.73	15.24	1936	5.52	1.47	55.05	0.48
20201001	12.46	8.74	13.12	2005	6.32	0.79	34.84	1.85
20201101	8.30	8.61	24.33	1948	5.91	1.12	15.21	2.80