Indoor air quality among Mumbai's resettled populations: Comparing Dharavi slum to nearby rehabilitation sites

© 2019 This study presents results from an experimental investigation of the severity and sources of household air pollution across two low-income housing archetypes in Mumbai. Experimentation was carried out in Dharavi—one of the world's largest slums—and two nearby communities representing Mu...

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Main Authors: Lueker, Justin, Bardhan, Ronita, Sarkar, Ahana, Norford, Leslie
Other Authors: Massachusetts Institute of Technology. Tata Center for Technology and Design
Format: Article
Language:English
Published: Elsevier BV 2021
Online Access:https://hdl.handle.net/1721.1/136501
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author Lueker, Justin
Bardhan, Ronita
Sarkar, Ahana
Norford, Leslie
author2 Massachusetts Institute of Technology. Tata Center for Technology and Design
author_facet Massachusetts Institute of Technology. Tata Center for Technology and Design
Lueker, Justin
Bardhan, Ronita
Sarkar, Ahana
Norford, Leslie
author_sort Lueker, Justin
collection MIT
description © 2019 This study presents results from an experimental investigation of the severity and sources of household air pollution across two low-income housing archetypes in Mumbai. Experimentation was carried out in Dharavi—one of the world's largest slums—and two nearby communities representing Mumbai's current slum resettlement scheme. Household surveys were conducted to understand aspects of occupant behavior that impact indoor air quality. Multi-pollutant logging sensors were installed inside units and in nearby outdoor locations to measure concentrations of particulate matter (PM2.5) and CO2. While rehabilitation architecture and gas cookstoves are often assumed to provide higher indoor air quality than in traditional slums, field monitoring and occupant behavior surveys demonstrated that indoor pollution levels were consistent across the two typologies even after infrastructure enhancements and ubiquitous gas cookstove usage. Indoor PM2.5 measurements ranged between 150 and 300 μg/m3, substantially higher than World Health Organization (WHO) guidelines. PM2.5 indoor/outdoor (I/O) ratios spiked during cooking periods but were otherwise less than 1.0 in over half of logged instances in rehabilitation units, highlighting the role of particle deposition phenomena and ambient-sourced PM2.5 in indoor environments. To minimize the impact of both indoor and outdoor pollutant sources while respecting culturally-normative occupant behavior, this study points to the need for architectural design guidelines and enhanced indoor air quality interventions.
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spelling mit-1721.1/1365012023-11-07T20:01:41Z Indoor air quality among Mumbai's resettled populations: Comparing Dharavi slum to nearby rehabilitation sites Lueker, Justin Bardhan, Ronita Sarkar, Ahana Norford, Leslie Massachusetts Institute of Technology. Tata Center for Technology and Design Massachusetts Institute of Technology. Department of Architecture © 2019 This study presents results from an experimental investigation of the severity and sources of household air pollution across two low-income housing archetypes in Mumbai. Experimentation was carried out in Dharavi—one of the world's largest slums—and two nearby communities representing Mumbai's current slum resettlement scheme. Household surveys were conducted to understand aspects of occupant behavior that impact indoor air quality. Multi-pollutant logging sensors were installed inside units and in nearby outdoor locations to measure concentrations of particulate matter (PM2.5) and CO2. While rehabilitation architecture and gas cookstoves are often assumed to provide higher indoor air quality than in traditional slums, field monitoring and occupant behavior surveys demonstrated that indoor pollution levels were consistent across the two typologies even after infrastructure enhancements and ubiquitous gas cookstove usage. Indoor PM2.5 measurements ranged between 150 and 300 μg/m3, substantially higher than World Health Organization (WHO) guidelines. PM2.5 indoor/outdoor (I/O) ratios spiked during cooking periods but were otherwise less than 1.0 in over half of logged instances in rehabilitation units, highlighting the role of particle deposition phenomena and ambient-sourced PM2.5 in indoor environments. To minimize the impact of both indoor and outdoor pollutant sources while respecting culturally-normative occupant behavior, this study points to the need for architectural design guidelines and enhanced indoor air quality interventions. 2021-10-27T20:35:42Z 2021-10-27T20:35:42Z 2020 2021-05-10T18:34:13Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/136501 en 10.1016/J.BUILDENV.2019.106419 Building and Environment Creative Commons Attribution-NonCommercial-NoDerivs License http://creativecommons.org/licenses/by-nc-nd/4.0/ application/pdf Elsevier BV Other repository
spellingShingle Lueker, Justin
Bardhan, Ronita
Sarkar, Ahana
Norford, Leslie
Indoor air quality among Mumbai's resettled populations: Comparing Dharavi slum to nearby rehabilitation sites
title Indoor air quality among Mumbai's resettled populations: Comparing Dharavi slum to nearby rehabilitation sites
title_full Indoor air quality among Mumbai's resettled populations: Comparing Dharavi slum to nearby rehabilitation sites
title_fullStr Indoor air quality among Mumbai's resettled populations: Comparing Dharavi slum to nearby rehabilitation sites
title_full_unstemmed Indoor air quality among Mumbai's resettled populations: Comparing Dharavi slum to nearby rehabilitation sites
title_short Indoor air quality among Mumbai's resettled populations: Comparing Dharavi slum to nearby rehabilitation sites
title_sort indoor air quality among mumbai s resettled populations comparing dharavi slum to nearby rehabilitation sites
url https://hdl.handle.net/1721.1/136501
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AT sarkarahana indoorairqualityamongmumbaisresettledpopulationscomparingdharavislumtonearbyrehabilitationsites
AT norfordleslie indoorairqualityamongmumbaisresettledpopulationscomparingdharavislumtonearbyrehabilitationsites