How to Use "ppm" with Example Sentences

1. Concentrations of 10 ppm can be endured for only a few minutes and cause profuse lacrimation in all people .

2. It has a repulsive acidic odor that can usually be detected at or below a concentration of 5 ppm .

3. Type I Diabetes mellitus usually starts from adolescent , whose morbidity rate is about 83 ppm and still increases .

4. By chance , oryza sativa is a like aluminum plant , its optimum concentration is 30 ppm was observed .