The corresponding specific index of ozone is determined by fitting the concentration of the average hourly concentrations in one of the fields listed in the following table:
Field of ozone concentrations (ug / m3) | specific index |
0-50 |
1
|
50-100 |
2
|
100-130 |
3
|
130-240 |
4
|
240-380 |
5
|
380-800 |
6
|