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ppb

See parts per billion.

Subject: 
Environmental Science [1]
Vocabulary: 
Chapter 11 - Risk, Toxicology, and Human Health [2]
Source URL:https://course-notes.org/glossary/term/ppb#comment-0

Links
[1] https://course-notes.org/subject/environmental_science [2] https://course-notes.org/vocabulary/chapter_11_risk