Matched context for byproduct and byproduct

The page lists matched contexts for byproduct and byproduct.

Share - byproduct	Share - byproduct	Phrase
56.17%	56.17%	combustion {byproduct or byproduct}
22.78%	22.78%	exhaust [physical/chemical] {byproduct or byproduct}
12.67%	12.67%	discharge {byproduct or byproduct} [perform operation]
8.37%	8.37%	{byproduct or byproduct} emission