RT null T1 Reducing Exposure to Particulate Matter in Indoor Environment - Policy Brief A1 United Nations Environment Programme, A2 Balasubramanian, Rajasekhar K1 particulate matter K1 air quality K1 outdoor air pollution K1 Pollution YR 2019 FD 2019 LK https://wedocs.unep.org/handle/20.500.11822/28965 UL https://wedocs.unep.org/handle/20.500.11822/28965 NO The objective of this policy brief is to give practical information to policymakers and health authorities on reducing exposure to particulate matter (PM) in indoor environment that are naturally or mechanically ventilated and strongly influenced by outdoor air pollution sources. Prolonged exposure to harmful PM indoors can have adverse health effects, such as increased respiratory symptoms and reduced lung function. NO https://www.unenvironment.org/asia-and-pacific/asia-pacific-clean-air-partnership DS UN Environment Document Repository RD Sep 24, 2026