A combination can be constituted-of-or-filled-with industrial pollution.Logical formLearned from4 sentences. Pollution can be from a smelter.Logical formLearned from4 sentences. Pollution can be from refineries.Logical formLearned from4 sentences. A percent may pertain-to a (carbon dioxide pollution).Logical formLearned from4 sentences. Reductions can be in (mercury pollution).Logical formLearned from4 sentences. Pollution may cause an increase.Logical formLearned from4 sentences. Controls can be on (water pollution).Logical formLearned from4 sentences. Aspects can be constituted-of-or-filled-with environmental pollution.Logical formLearned from4 sentences. An (air pollution) can be in a capital.Logical formLearned from4 sentences. Pollution can be by particles.Logical formLearned from4 sentences. Compliance can be with (pollution control standards).Logical formLearned from4 sentences. Areas can be as (pollution control).Logical formLearned from4 sentences. A world-city may have an (air pollution).Logical formLearned from4 sentences. An (air pollution) can be in a US-city.Logical formLearned from4 sentences. A reduction can be in a level of pollution.Logical formLearned from4 sentences.