Matched context for carbon and ppm

The page lists matched contexts for carbon and ppm.

Share - carbon	Share - ppm	Phrase
18.33%	3.25%	{carbon or ppm} monoxide
0.59%	2.20%	{carbon or ppm} content
0.16%	2.14%	{carbon or ppm} co
0.18%	0.69%	{carbon or ppm} concentration
0.10%	1.75%	{carbon or ppm} hydrocarbon
0.12%	0.59%	{carbon or ppm} level
0.22%	2.18%	{carbon or ppm} oxide
0.10%	8.31%	{carbon or ppm} ppm
0.01%	0.46%	amount {carbon or ppm}
0.02%	0.93%	base {carbon or ppm} [perform operation]
0.12%	1.02%	contain {carbon or ppm} [perform operation]