An (air pollution) can be pervasive.Logical formLearned from5 sentences. Scientists may study pollution.Logical formLearned from5 sentences. Public access can be to (pollution information).Logical formLearned from5 sentences. Lack of practices may result in (pollution problems).Logical formLearned from5 sentences. A load can be constituted-of-or-filled-with pollution.Logical formLearned from5 sentences. (Pollution standards) can be allowable.Logical formLearned from5 sentences. (Health standards) can be for (air pollution).Logical formLearned from5 sentences. (Pollution allowances) may undergo a trading.Logical formLearned from5 sentences. Trading can be in (pollution credits).Logical formLearned from5 sentences. Pollution can be long-range.Logical formLearned from5 sentences. (Mercury pollution) can be from coal-burning (power plants).Logical formLearned from5 sentences. (Pollution sources) can be regional.Logical formLearned from5 sentences. A fraction may pertain-to an (air pollution).Logical formLearned from5 sentences. Protection can be against (oil pollution).Logical formLearned from5 sentences. Procedures may relate to a prevention of pollution.Logical formLearned from5 sentences.