*2.2. The Guiding Emission Standards of VOCs in China*

The guiding emission standards of VOCs include six kinds of VOCs on the boundary of factories (Table 1) and four pollutant classifications with a total of 16 compounds in the areas surrounding workshops and installations (Table 2) [13]. These parameters are determined in 1 h by 3~4 samples for the average value. They are detected by the portable instruments or GC. These target VOCs are carcinogenic, odorous, and harmful organic compounds, which are mainly used as solvents and raw materials.


**Table 1.** The extreme emission value of volatile organic compounds (VOCs) on the boundary of factories and the highest concentration of selected VOCs allowed in 1 h for employees [13].

a. They will be put into effect after the publication of national standards.


**Table 2.** The limiting value of specific pollutants in workshops and installations [13].

a. They will be put into effect after the publication of national standards.
