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Appendix A: Glossary
Pages 135-138

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From page 135...
... Results from chronic toxicity tests are reported as the toxicant concentration that causes a given effect. Commonly transported crude oils -- The oils carried by most transmission pipelines in the United States.
From page 136...
... Low molecular weight petroleum compounds -- Compounds with a molecular weight lower than about 250 Daltons; typically these compounds are liquids at ambient temperatures. Medium crude oil -- A naturally occurring, unrefined petroleum product with a density ranging from 0.85 to 0.92 g/cm3 or an API gravity ranging from 36 to 21.
From page 137...
... It is distinct from smaller, shorter pipelines used to collect oil from individual wells or to distribute to points of consumption. Unconventional oil -- Oil that is produced by unconventional means, including thermal separation of non-liquid bitumen from a host rock and hydraulic fracturing of impermeable reservoirs or source rocks.


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