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Acid rain

Acid rain is rain droplets containing sulphuric oxides (SO2 and SO3) and nitrogen dioxide (NO2).

Aerosols

Aerosols The aerosol is a term used to describe a collection of airborne solid or liquid particles with a typical size between 0.01 and 10 μm that reside in the atmosphere from periods of hours to days or months. They may be natural or anthropogenic in origin....

PFC (perfluorinated compounds)

The perfluorinated compounds, PFOA and PFOS, are compounds used in non-stick and water-repellent coatings for fabrics, recent studies indicate that these compounds, which can be environmental pollutants, also interfere with the efficiency of vaccine for children.