Know Thy Foe: Information Provision and Air Pollution in Tbilisi

Sandra Baquie, Arnold Behrer, Xinming Du, Alan Fuchs Tarlovsky and Natsuko Kiso Nozaki

No 10852, Policy Research Working Paper Series from The World Bank

Abstract: Middle-income countries host the majority of the world’s population exposed to unhealthy levels of air pollution, and the majority of this population lives in urban environments. This study investigates the impact of information provision on household behavior in connection with indoor and outdoor air pollution in a middle-income country’s major urban center — Tbilisi, Georgia. The study implemented a randomized controlled trial to assess whether providing households with different levels of pollution information changes their knowledge of air pollution and avoidance behavior with respect to air pollution, and improves their health outcomes. The study evaluates three treatments: a pamphlet with general information on pollution, the pamphlet combined with daily text messages about local outdoor pollution, and the pamphlet with messages about both indoor and outdoor pollution levels, supplemented with an indoor air pollution monitor. The findings show that while the pamphlet alone did not lead to behavioral change, daily text messages significantly enhanced knowledge about pollution, led to increased avoidance behaviors, and improved health outcomes. The study also examined infiltration rates throughout the city and document three facts: indoor air pollution levels are generally higher than outdoor ones, infiltration rates are high on average, and their variation is driven primarily by behaviors.

Date: 2024-07-16
New Economics Papers: this item is included in nep-ene, nep-env, nep-exp and nep-nud
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