Theme for 2009:
"Universal participation: Ozone protection unifies the world"
http://ozone.unep.org/

http://ec.europa.eu/environment/ozone/pdf/fact_sheet.pdf
http://www.mmediu.ro/departament_mediu/substante_chimice/ozon.htm

http://www.apmbm.ro/docs/monitorizare/Buletin%20zilnic.pdf
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