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Where PPM Stands for :

The presence of pollutants in the environment is usually expressed in ppm, where ppm stands for;

  1. pollutant prevent measure
  2. parts per million
  3. purity per microgram
  4. particles per mole
Anurag Mishra Professor Asked on 5th October 2015 in Environment Science.
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Answer: (2) Parts per million

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Anurag Mishra Professor Answered on 5th October 2015.
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