Online Monitoring of Ecoenvironmental Pollution Data in Internet Environment

Table 3

Times of evaluation factors in the grading standard interval.

Factor	Pollution-free	Light	Moderate	Severe
Nickel	16	35	15	8
Chromium	31	28	10	2
Lead	32	18	16	8
Zinc	27	34	8	5
Mercury	10	17	39	8