출처:안전보건공단
LC50 이란?
* LD50은 피부에 도포 또는 입에 넣는 것이라면, LC50은 일정 농도를 공기 중에 퍼져있을 때를 의미
People check the time several times a day without even thinking about it.But have you…
I took an early morning flight from Gimpo to Jeju Island for a day trip…
Three Practical Guidelines for Effective Time Management . . 1. Plan your day with just…
Not far from the Gyeongju tollgate lies Namsan Mountain, a peaceful place filled with history…
I came to Gyeongsang Province for a work-related training program. . After finishing the…
Our annual camping spot in the valleys of Gapyeong, Gyeonggi Province . We’ve been camping…