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In a scientific context, PPT can also stand for “parts per trillion.” It’s a unit of measurement used to express extremely low concentrations of substances in a mixture, indicating one part of a substance for every trillion parts of the mixture.
PPM stands for “parts per million.” It’s another unit of measurement used to express the concentration of a substance in a mixture. It indicates one part of a substance for every million parts of the mixture.
Converting from “ppt” (parts per trillion) to “ppm” (parts per million) involves scaling the concentration of a substance in a mixture from one unit to the other. Here’s how you can do it:
Understand the Conversion Factor: Since there are 1,000,000 parts in a million and 1,000,000,000,000 parts in a trillion, the conversion factor between ppt and ppm is 1 trillion (10^12).
Conversion Formula
To convert from ppt to ppm, you can use the following formula:
Concentration (ppm) = Concentration (ppt) / 106
Where:
Concentration (ppm) is the concentration of the substance in parts per million.
Concentration (ppt) is the concentration of the substance in parts per trillion.
Example: Let’s say you have a concentration of a substance of 5 ppt and you want to convert it to ppm.
Ans. Concentration (ppm) = 5 ppt / 106 = 0.000005 ppm
So, a concentration of 5 ppt is equivalent to 0.000005 ppm.
| ppt | ppm |
| 1 | 0.000001 |
| 10 | 0.00001 |
| 100 | 0.0001 |
| 1000 | 0.001 |
| 10000 | 0.01 |
| 100000 | 0.1 |
| 106 | 1 |
| 107 | 10 |
| 108 | 100 |
| 109 | 1000 |
| 1010 | 10000 |
1 ppm is equal to 0.001 ppt (parts per trillion).
1 ppt (parts per trillion) is equal to 0.000001 ppm (parts per million).
10 ppt (parts per trillion) is equivalent to 0.00001 ppm (parts per million).
No, ppt (parts per trillion) and ppm (parts per million) are not the same. Ppt represents a smaller concentration compared to ppm.
A salinity of 35 ppt (parts per trillion) refers to a concentration of dissolved salts in water, commonly used to measure the salinity of seawater.
A salinity of 1 ppt (parts per trillion) indicates a very low concentration of dissolved salts in water.
To create a salinity of 20 ppt (parts per trillion), you would need to dissolve a specific amount of salts in a given amount of water, ensuring the ratio of salt to water is 20 parts per trillion.
The value 1.026 is typically associated with the specific gravity of seawater, which doesn't directly convert to ppt. However, it indicates the density of seawater compared to freshwater. If you're looking for the equivalent ppt value, you would need more information about the specific composition of the solution.