Going to the performance

It is recommended to light daily. However, the vulnerable, such as the elderly and pregnant women are different. From the 36 micrograms per cubic meter based on a poor wearing a mask it to avoid outdoor activities. But that does not mean they have to lighten the fine dust. [Hongyuncheol / Preventive Medicine, Seoul National University Professor, even if pretty nappeujiman 50㎍ / ㎥ limit physical ..