[Retracted] The Development of “Internet +” Smart Environmental Protection Multi-Environment Perception System

Table 1

Statistics of the basic situation of the respondents.

Personal characteristics	Category	Number of people	Percentage (%)
Age	18–24	21	4.6
	25–34	151	32.8
	35–44	259	56.1
	≥45	30	6.5
Education level	High school	85	18.4
	College	110	23.8
	Undergraduate	151	32.8
	Master	41	8.9
	PhD	35	7.6
Occupation	College students	90	19.5
	Civil servants	73	15.8
	Institution	40	8.7
	Enterprise employees	171	37.1
	Teacher	87	18.9