PPB (Parts Per Billion) Calculator

Formula

To calculate the concentration in PPB:

\[ ppb = \left(\frac{C}{T}\right) \times 10^9 \]

Where:

\(ppb\) is the concentration in parts per billion
\(C\) is the concentration of the substance in the sample in mg/L
\(T\) is the total volume of the sample in L

What is PPB (Parts Per Billion)?

PPB, or parts per billion, is a unit of measurement used to denote the concentration of a substance within another substance. It represents the ratio of the amount of one substance to a billion parts of the total mixture. For example, one ppb could mean one molecule of a particular substance mixed into a billion molecules of another substance. It is commonly used in scientific research, environmental pollution studies, and in the measurement of very low concentrations of a substance.

Example Calculation 1

Let's assume the following values:

Concentration of the Substance (\(C\)) = 0.5 mg/L
Total Volume of the Sample (\(T\)) = 1 L

Using the formula:

\[ ppb = \left(\frac{0.5}{1}\right) \times 10^9 = 500000000 \text{ ppb} \]

The concentration is 500,000,000 ppb.

Example Calculation 2

Let's assume the following values:

Concentration of the Substance (\(C\)) = 1 mg/L
Total Volume of the Sample (\(T\)) = 2 L

Using the formula:

\[ ppb = \left(\frac{1}{2}\right) \times 10^9 = 500000000 \text{ ppb} \]

The concentration is 500,000,000 ppb.