brain-picking *boring alert* how to represent ppm result diagrammatically when they are low.

[wallyfeatures]

Any of you lovely ladies able to help me with how to represent visually some results for a project I'm working on (uni level)?
I have results for exposure to a chemical that is parts per million for each of the 5 people. The permissible limit is 5 ppm and the subjects have values within the range of 65 -85. How can I represent this with a diagram? I have no idea and am not a visual person.

Bar Graph for the subjects with the permissable limit as a line graph across it? A visual representation of how far over the limit the are?

What Gin said. Bar chart of the 5 individuals (or a range if you've more than one reading for each participant and draw a line at y=5

What they said

Like this, but with nicer formatting!

Thank you for the suggestions. Sorry I abandoned the thread last night but my brain had just stopped working! I think I was hung up on the need to show the results as a proportion out of a million. But if I state that it is ppm then there is no need and I can just draw the y to a nominal amount, such as the 90 suggested by Gin.

Cheers everyone grin