Formation of ozone by fireworks
2001; Nature Portfolio; Volume: 411; Issue: 6841 Linguagem: Inglês
10.1038/35082634
ISSN1476-4687
AutoresArun K. Attri, Ujjwal Kumar, V. K. Jain,
Tópico(s)Solar and Space Plasma Dynamics
ResumoOzone is a secondary pollutant and greenhouse gas that is formed from molecular oxygen in the presence of sunlight and nitrogen oxides. The extent of production also depends on the presence of volatile hydrocarbons, carbon monoxide and methane1,2,3,4,5,6. But we have discovered a surprising source of ozone which is generated in spontaneous bursts even in the absence of sunlight and nitrogen oxides — namely, the exuberant mass of colour-emitting sparklers that are lit during the Diwali festivities, which take place every year during October and November in Delhi, India. The underlying process of ozone formation resembles that induced by ultraviolet radiation in the stratosphere7,8.
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