Inside Out: The State of Evidence on Household Air Pollution’s Contribution to Ambient Air Pollution
Exposure to household air pollution (HAP) contributes to up to 4 million premature deaths per year globally. HAP emitted indoors must go somewhere, and much of it goes outdoors, contributing to ambient air pollution (AAP). As such, HAP is a leading source of AAP in low and middle-income countries, often being a larger contributor than sources which are often considered indices of development, including road transport, the industrial sector, coal-fired power plants, brick kilns, and construction dust.
To distill the currently available literature on the relationship between HAP and AAP and identify key knowledge gaps, CCA recently commissioned a global review of the state of evidence of HAP’s contribution to AAP. The review was led by Sourangsu Chowdhury from the Center for International Climate Research (CICERO) with support from Ajay Pillarisetti from UC Berkeley. We found that HAP is a dominant source of ambient fine particulate (PM2.5) matter globally, contributing about 20% of global PM2.5 exposure, regardless of variations in model types, configurations, and emission inventories used.
This webinar will focus on (1) translating the main findings from the state of the evidence review, (2) reviewing key knowledge gaps that were identified, and (3) discussing the importance of addressing HAP at a policy level to improve air quality globally.
- 11:00 – 11:05 Welcome note – Donee Alexander, Clean Cooking Alliance
- 11:05 – 11:10 Opening remarks – John Mitchell, U.S. Environmental Protection Agency
- 11:10 – 11:40 Presentation: “How much pollution released indoors goes out?” Sourangsu Chowdhury, CICERO, and Ajay Pillarisetti, UC Berkeley
- 11:40 – 11:55 Q&A – Sourangsu Chowdhury, CICERO, and Ajay Pillarisetti, UC Berkeley
- 11:55 – 12:00 Closing remarks – Donee Alexander, Clean Cooking Alliance