Online Monitoring of Ecoenvironmental Pollution Data in Internet Environment

Table 1

Classification of specific grade data of air quality index.

Air quality index	Index level	Index category
0-50	Class a	Excellent
51-100	Second level	Good
101-150	Tertiary	Light
151-200	Level 4	Moderate
201-300	Five levels	Moderate
>300	Six levels	Serious