(Pollution control technologies) can be effective.Logical formLearned from5 sentences. Communities may be affected by pollution.Logical formLearned from5 sentences. A federal government may place regulations on industrial pollution.Logical formLearned from5 sentences. (Pollution problems) may pertain-to the world.Logical formLearned from5 sentences. Pollution can be unwanted.Logical formLearned from5 sentences. A level of pollution may increase.Logical formLearned from5 sentences. Watersheds may undergo pollution.Logical formLearned from5 sentences. A level may pertain-to pollution.Logical formLearned from5 sentences. A percent may pertain-to a (water pollution).Logical formLearned from5 sentences. (Pollution decreases) may occur.Logical formLearned from5 sentences. An (air pollution) may pertain-to a facility.Logical formLearned from5 sentences. An (air pollution) may be increased by thousands of thousands of tons.Logical formLearned from5 sentences. Pollution can be on an increase.Logical formLearned from5 sentences. Reports can be constituted-of-or-filled-with (oil pollution).Logical formLearned from5 sentences. (Pollution levels) may fall.Logical formLearned from5 sentences.