1 ppb = 0.001 mg/L

1 ppb = 0.001 mg/L

 

 

NO2 0.00215 μg/m^3을 ppb 단위로 환산하면 얼마인가?

 

-----------------------------------------

 

1 ppb

= (0.000001 g solute / 1000 g solution) × 10^9

= (0.001 mg solute / 1 kg solution) × 10^9

= 0.001 mg/kg ≒ 0.001 mg/L

 

1 μg = 0.001 mg

1 m^3 = 1000 L

 

(0.00215 μg/m^3) * (0.001 mg / 1 μg) * (1 m^3 / 1000 L) 또는

0.00215 * 0.001 mg / 1000 L = 2.15E-9 mg/L

 

(2.15E-9 mg/L) * [1 ppb / (0.001 mg/L)] = 2.15E-6 ppb

 

답: 2.15*10^-6 ppb