Difference Between PPM and PPMV (With Table)

In science, there are certain mathematical calculations by which we get to know about the value. Therefore, PPM and PPMV are two types of short forms of scientific calculations. The PPM and PPMV fall under the category of dimensionless quantities. One should have a clear concept and vision for the terms as they are very much distinct from each other. Both, are the units of measurement.

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PPM vs PPMV

The main difference between PPM and PPMV is that PPM is associated with the quantity by weight per million. On the other hand, PPMV is associated with the volume per million. Both, the measure varies from each other. The PPM is a configuration of measurement that is associated with solid or hard concentrations. And on the other hand, PPPMV is a configuration of measurement that is associated with the gaseous concentration.

The short form of PPM is parts per million. It is mainly the concentration of solid objects. PPM is used to calculate the measurement of the quantity by weight. Generally, this is the manner of concluding the traces of contaminants and food ventures. The subjects such as physics, chemistry, and engineering conclude the abbreviation PPM and are used to describe the notions as per the no-dimensional quantities. It is generally denoted as PPM or mg/L (milligram per liter).

On the other hand, the short form of PPMV is parts per million volume. It is concentrated with gaseous substances. PPMV is used to calculate the amount of gaseous substance that is present in the atmosphere. Also, sometimes it is used to measure liquid substances as well, where one million parts per volume of a liquid element get dissolved in the air. The expression of concentration is denoted as PPMV or mg/m³ (milligram per cubic meter).

Comparison Table Between PPM and PPMV

Parameters of Comparison

PPM

PPMV

Definition

PPM is used to calculate the assemblage of pollutants present in the soil and sediments.

PPMV is used to calculate the assemblage of air pollutants present in the atmosphere.

Abbreviation Full Form

PPM generally stands for Parts Per Million.

PPMV generally stands for Parts Per Million Volume.

Concentration

PPM is concentrated with solid substances.

PPMV is concentrated with gaseous substances.

Suffix

PPM requires the suffix ‘w’ to denote the weight. That means PPMW stands for Parts Per Million Weight.

PPMV does not require any suffix, as it already explains on its own.

Convert

To convert PPM to PPMV, one needs to multiply the mass by the density of molecules.

To convert PPMV to PPM, one needs to divide the volume by the density of molecules.

Concentration’s Denotation

PPM is denoted as mg/L (milligram per liter).

PPMV is denoted as mg/m³ (milligram per cubic meter).

What is PPM?

In the science and engineering courses, PPM is used to measure the pollutants in the soil and sediments. It is the value of measurement of weight, by which the units of contamination are concluded. The PPM is generally the short form of Parts Per Million. PPM is concentrated with solid substances, which are dissolved in the solids and liquid. The chemical impurities and the traces of pollutants present in the soils.

Physics, Chemistry, and Engineering are the subjects that denote the concentration of PPM. PPM requires the suffix ‘w’ to denote the weight. That means PPMW stands for Parts Per Million Weight, it is used to calculate the weight of the molecules. The PPM is used to do the calculations in research-based work.

To convert PPM to PPMV, one needs to multiply the mass by the density of molecules. PPM is denoted as mg/L (milligram per liter). One example of PPM– The concentration of a drug addictive in an animal feed is 12.5 ppm. Calculate the amount of drug that is required for preparing 5.2 kg of feed.

12.5 g (drug) ——–> 1,000,000 g (feed)

X ————-> 5200 g

X = 12.5 x 5200 divide by 1000000 = 0.065g

= 65mg

What is PPMV?

PPMV represents the calculation of the volume of the particles that are present in the air. These gaseous and harmful substances include carbon dioxide, sulphur, nitrogen, and other various pollutants in the air. It is the abbreviation of the calculations of these substances. PPMV is the short form of Parts Per Million Volume. It represents the volume of the particles. PPMV is concentrated with gaseous substances. Sometimes PPMV also represents the parts per million volume in the dissolved liquids.

In numerical solutions, one has to be careful while dealing with both PPM and PPMV, as it often leads to confusion. PPMV does not require any suffix, as it already explains on its own. The letter v which stands for volume clearly explains that PPMV is all about the calculation of the volume of the particles. PPMV is denoted as mg/m³ (milligram per cubic meter).

To convert PPMV to PPM, one needs to divide the volume by the density of molecules. For example — The percentage of Carbon Dioxide in the atmosphere is 78.09% of volume or 780,800 ppmv, Oxygen is 20.95% volume or 209,500 ppmv, Argon is 0.93% by volume or 9,300 ppmv, etc.

Main Differences Between PPM and PPMV

  1. PPM is used to calculate the assemblage of pollutants present in the soil and sediments. On the other hand, PPMV is used to calculate the assemblage of air pollutants present in the atmosphere.
  2. PPM generally stands for Parts Per Million. On the other hand, PPMV generally stands for Parts Per Million Volume.
  3. PPM is concentrated with solid substances. On the other hand, PPMV is concentrated with gaseous substances.
  4. PPM requires the suffix ‘w’ to denote the weight. That means PPMW stands for Parts Per Million Weight. On the other hand, PPMV does not require any suffix, as it already explains on its own.
  5. To convert PPM to PPMV, one needs to multiply the mass by the density of molecules. On the other hand, to convert PPMV to PPM, one needs to divide the volume by the density of molecules.
  6. PPM is denoted as mg/L (milligram per liter). On the other hand, PPMV is denoted as mg/m³ (milligram per cubic meter).

Conclusion

PPM and PPMV, are the two types of measurements. Both PPM and PPMV are the versions of measurements but, they have their respective concentrations that are, the PPM is used to measure the pollutants of the soil and sediments and on the other hand, PPMV is used to measure the pollutants of the atmosphere. Both, have distinct features and calculations. The abbreviation of PPM denotes Parts Per Million. And the abbreviation of PPMV denotes Parts Per Million Volume.

References

  1. https://www.sciencedirect.com/science/article/pii/S0168160515002470
  2. https://aip.scitation.org/doi/abs/10.1063/1.1149625

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