Geography
What is the difference between primary and secondary pollutants?
Pollution Effects
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Answer
| S. no. | Primary pollutants | Secondary pollutants |
|---|---|---|
| 1. | They are directly released into the air. | They are formed due to chemical interactions between the atmospheric components and primary pollutants. |
| 2. | For example- smoke, dust, ash, sulphur oxide, nitrogen oxide etc. | For example- smog, acid rain. |
| 3. | It is comparatively less harmful. | It is more harmful. |
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