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1. Characteristics of nitrogen oxide molecules
The term NO x is the generic term for a series of compounds containing nitrogen and oxygen at different oxidation stages. These include nitrous oxide N 2 O, nitric oxide NO, nitrogen dioxide NO 2 , nitrogen tetraoxide N 2 O 4 and nitrogen trioxide N 2 O 3 (sometimes also N 2 O 5 ), but also, in the presence of water vapor, the nitrous and nitric acids HNO 2 and HNO 3 respectively.
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Characteristics of nitrogen oxide molecules
Environmental impacts and sources
Regulations
Council Directive 96/61/EC of September 24, 1996 concerning integrated pollution prevention and control, known as the IPPC Directive (OJ L 257, October 10, 1996, p. 26-40).
Directive 2000/76/EC of the European Parliament and of the Council of December 4, 2000 on the incineration of waste (OJ L 332, December 28, 2000, p. 91-111).
Directive 2001/80/EC of the European Parliament...
Standards and norms
- Ambient air quality – standard method for measuring nitrogen dioxide and nitrogen monoxide concentration by chemiluminescence. - EN 14211 - (2005)
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