RT null
T1 Fourth International Day of Clean Air for blue skies
A1 United Nations Environment Programme, 
K1 air pollution
K1 pollution control
K1 air pollutant
K1 pollution
YR 2023
FD 2023-09
LK https://wedocs.unep.org/handle/20.500.11822/45848
UL https://wedocs.unep.org/handle/20.500.11822/45848
NO he Fourth International Day of Clean Air for blue skies was held on 7 September 2023, under the theme of “Together For Clean Air, emphasizing the need for stronger partnerships, investment and shared responsibility
DS UN Environment Document Repository
RD Sep 21, 2026