PM2.5 Episode: Jan 15-20, 2024
▶
▼
▼
PM
2.5
, µg/m³
< 5 †
5-10 ‡
10-15 §
15-20 ¶
20-25 *
25-30
30-35 ⁑
35-40
40-45
45-50
> 50
† WHO guideline
‡ < GLA/WHO Int 4
§ WHO Int 3
¶ UK
* WHO Int 2
⁑ WHO Int 1