A (pollution density) can be at a post of a river.Logical formLearned from3 sentences. Details may pertain-to a (pollution incident).Logical formLearned from3 sentences. An (air pollution index) may fall.Logical formLearned from3 sentences. (Pollution control) can be in a basin.Logical formLearned from3 sentences. Levels can be constituted-of-or-filled-with outdoor (air pollution).Logical formLearned from3 sentences. Prenatal exposure can be to (air pollution).Logical formLearned from3 sentences. An (air pollution control plan) can be annual.Logical formLearned from3 sentences. (Pollution control efforts) may pertain-to a country.Logical formLearned from3 sentences. A number of fish may be killed by pollution.Logical formLearned from3 sentences. A leader can be in a (pollution mishap).Logical formLearned from3 sentences. A (pollution control plan) may be developed for a region.Logical formLearned from3 sentences. A (pollution index) may worsen.Logical formLearned from3 sentences. (Sea pollution) can be constituted-of-or-filled-with information.Logical formLearned from3 sentences. (Air pollution issues) can be regional.Logical formLearned from3 sentences. Pollution may be caused by mining.Logical formLearned from3 sentences.