Matched context for pollution and instability

The page lists matched contexts for pollution and instability.

Share - pollution	Share - instability	Phrase
7.13%	3.97%	{pollution or instability} problem
6.14%	2.85%	reduce {pollution or instability} [perform operation]
1.87%	5.57%	cause {pollution or instability} [perform operation]
2.15%	2.84%	{pollution or instability} level
1.21%	4.05%	avoid {pollution or instability} [perform operation]
0.32%	10.42%	combustion {pollution or instability}
0.48%	5.14%	eliminate {pollution or instability} [perform operation]
1.17%	2.19%	prevent {pollution or instability} [perform operation]
0.49%	3.49%	lead to {pollution or instability}
0.24%	2.28%	engine {pollution or instability}