Reduction of household air pollution through clean fuel intervention and recovery of cellular immune balance.

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ID: 276876
2023
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Abstract
We conducted a clean fuel intervention trial (Bangladesh Global Environmental and Occupational Health (GEOHealth) (NCT02824237) with liquefied petroleum gas (LPG) for 26 months among rural Bangladeshi women chronically exposed to household air pollution (HAP) from biomass fuel (BMF) use. We aimed to evaluate the effect of HAP reduction following LPG intervention on immune response outcome.We supplied LPG cook stove and refills in cylinder in 200 households for 26 months. We measured personal exposure to HAP [particulate matter 2.5 (PM), black carbon (BC) and carbon monoxide (CO)] in 200 women (main cook) by personal monitors at pre- and post-intervention. Immune function was assessed before and after intervention, in blood collected within 2 weeks of HAP measurements. Primary endpoints included reduction in HAP, lymphocyte proliferation and oxidative stress response, and alterations in T and B cell proportions.Exclusive LPG use for 26 months resulted in significant reduction in PM (43.5%), BC (13%) and CO (48%) exposure in the women. For one unit decrease in BC, Treg cells and memory B cells increased by 7% and 34% respectively, in the peripheral circulation. One unit decrease in CO was significantly associated with increase in early B cells and plasmablasts by 66% and 5% respectively. For one unit decrease in BC, percent-dividing cells, proliferation and expansion indices increased by 2%, 0.4%, and 1%, respectively.Reduced personal exposure to HAP through clean fuel intervention was related to a return towards cellular immune balance.
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raqib2023reductionenvironment Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Raqib, Rubhana;Akhtar, Evana;Ahsanul Haq, Md;Ahmed, Shyfuddin;Haque, Farjana;Chowdhury, Muhammad Ashique Haider;Shahriar, Mohammad Hasan;Begum, Bilkis Ara;Eunus, Mahbub;Sarwar, Golam;Parvez, Faruque;Sharker, Yushuf;Ahsan, Habibul;Yunus, Mohammed;
Journal Environment international
Year 2023
DOI
10.1016/j.envint.2023.108137
URL
Keywords
black carbon carbon monoxide immune cells biomass fuel particulate matter 2.5

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