지정물질은총22종이있는데요,암모니아(배출허용기준ppm0.02)황화수소(0.02)황화메팅(0.01)이황화메틸(0.009)트리메틸아민(0.005)아세트할데하이드(0.05)등
당신은 어느 그룹입니까?