A5084430438- Energy and Environment Impacts
- Air Quality and Health Impacts
- Energy, Environment, and Transportation Policies
- COVID-19 impact on air quality
- Climate Change and Health Impacts
- COVID-19 Pandemic Impacts
- Air Quality Monitoring and Forecasting
- Global Health Care Issues
- Health disparities and outcomes
- Noise Effects and Management
- Obesity, Physical Activity, Diet
- Hybrid Renewable Energy Systems
- Poverty, Education, and Child Welfare
- Health and Conflict Studies
- Atmospheric chemistry and aerosols
- Advanced Battery Technologies Research
- Electric Vehicles and Infrastructure
- Impact of Light on Environment and Health
- Obesity and Health Practices
- Economic Sanctions and International Relations
- Environmental and Cultural Studies in Latin America and Beyond
- Gender, Labor, and Family Dynamics
- Urban Heat Island Mitigation
- Healthcare Policy and Management
- Wastewater Treatment and Reuse
University of Liverpool
2020-2025
Harvard University
2023-2025
University of British Columbia
2017-2022
International Collaboration On Repair Discoveries
2018
World Bank Group
2017
World Health Organization - Pakistan
2017
BackgroundApproximately 2·8 billion people are exposed to household air pollution from cooking with polluting fuels. Few monitoring studies have systematically measured health-damaging pollutant (ie, fine particulate matter [PM2·5] and black carbon) concentrations a wide range of fuels across diverse populations. This multinational study aimed assess the magnitude kitchen personal exposures PM2·5 carbon in rural communities environments.MethodsAs part Prospective Urban Rural Epidemiological...
This longitudinal study presents the joint effects of a COVID-19 community lockdown on household energy and food security in an informal settlement Nairobi, Kenya. Randomly administered surveys were completed from December 2019-March 2020 before (n = 474) repeated April during 194). Nearly universal (95%) income decline occurred led to 88% households reporting insecurity. During lockdown, quarter 17) using liquefied petroleum gas (LPG), cleaner cooking fuel typically available pre-set...
BackgroundRelatively clean cooking fuels such as liquefied petroleum gas (LPG) emit less fine particulate matter (PM2·5) and carbon monoxide (CO) than polluting (eg, wood, charcoal). Yet, some interventions have not achieved substantial exposure reductions. This study evaluates determinants of between-community variability in exposures to household air pollution (HAP) across sub-Saharan Africa.MethodsIn this measurement study, we recruited households primarily with LPG or exclusively wood...
This study evaluates the combined use of mobile transects and fixed stations to analyze atmospheric urban heat islands (UHIs'a) in Temuco, Chile. Data were collected using 23 3 traversing predefined city routes, capturing temperature records at one-minute intervals. Results revealed moderate correlations between methodologies (coefficients: 0.55-0.62) average differences 0.72 °C 1.6 °C, confirming their compatibility for integrated use. UHI intensities ranged from weak (0.5 °C) extremely...
Approximately 2.8 billion people rely on polluting fuels (e.g. wood, kerosene) for cooking. With affordability being a key access barrier to clean cooking fuels, such as liquefied petroleum gas (LPG), pay-as-you-go (PAYG) LPG smart meter technology may help resource-poor households adopt by allowing incremental fuel payments. To understand the potential PAYG facilitate cooking, objective evaluations of customers' and spending patterns are needed. This study uses novel data collected between...
Abstract Household transitions to cleaner cooking fuels (for example, liquefied petroleum gas (LPG)) have historically been studied from a demand perspective, with clean energy usage expected increase improvements in household socio-economic status. Although recent studies demonstrate the importance of supply-side determinants increasing cooking, few large-scale assessed their quantitatively, relative demand-related factors. Here, as part CLEAN-Air(Africa) study, we examine population-based...
Over 900 million people in sub-Saharan Africa (SSA) live energy poverty, relying on cooking polluting fuels (e.g. wood, charcoal). The association between poverty and mental/physical health-related quality of life (HRQoL) among women SSA, who are primarily tasked with cooking, is unknown.Females (n = 1,150) from peri-urban Cameroon, Kenya Ghana were surveyed their household use health status using the standardized Short-Form 36 (SF-36) questionnaire. Random effects linear regression linked...
Switching from polluting (e.g. wood, crop waste, coal) to clean cooking fuels gas, electricity) can reduce household air pollution (HAP) exposures and climate-forcing emissions. While studies have evaluated specific interventions assessed fuel-switching in repeated cross-sectional surveys, the role of different multilevel factors fuel switching, outside across diverse community settings, is not well understood.We examined longitudinal survey data 24,172 households 177 rural communities nine...
The Cameroon government has set a target that, by 2030, 58% of the population will be using Liquefied Petroleum Gas (LPG) as cooking fuel, in comparison with less than 20% 2014. National LPG Master Plan (Master Plan) was developed for scaling up sector to achieve this target.This study aimed estimate potential impacts planned expansion (the on health and climate change mitigation, assuming primary, sustained use daily cooking.We applied existing new mathematical models calculate expanding...
This study assessed the performance of modeling approaches to estimate personal exposure in Kenyan homes where cooking fuel combustion contributes substantially household air pollution (HAP). We measured emissions (PM2.5, black carbon, CO); stove use; and behavioral, socioeconomic, environmental characteristics (eg, ventilation kitchen volume). then applied various approaches: a single-zone model; indirect models, which combine person-location area-level measurements; predictive statistical...
Abstract In sub-Saharan Africa, approximately 85% of the population uses polluting cooking fuels (e.g. wood, charcoal). Incomplete combustion these generates household air pollution (HAP), containing fine particulate matter (PM 2.5 ) and carbon monoxide (CO). Due to large spatial variability, increased quantification HAP levels is needed improve exposure assessment in Africa. The CLEAN-Air(Africa) study included 24-h monitoring PM CO kitchen concentrations (n pm2.5 = 248/n 207) female...
Over 70% of Africans rely on polluting sources energy for cooking. There is a paucity epidemiological evidence the burden cooking fuel-related burns (CRBs) among women and children in low- middle-income countries. We estimated prevalence CRBs association with main fuel choice primary cooks 0-5 years age peri-urban areas Kenya, Cameroon, Ghana. conducted multisite cross-sectional survey Mbalmayo, Cameroon; Obuasi, Ghana; Eldoret, Kenya. Standardized questionnaires were administered between...
Associations between gaseous pollutant exposure and stillbirth have focused on exposures averaged over trimesters or gestation. We investigated the association short-term increases in nitrogen dioxide (NO2) ozone (O3) concentrations risk among a national sample of 116 788 Medicaid enrollees from 2000 to 2014. A time-stratified case-crossover design was used estimate distributed (lag 0–lag 6) cumulative lag effects, which were adjusted for PM2.5 concentration temperature. Effect modification...
Few studies have investigated the relationship between food and physical activity environment odds of gestational diabetes mellitus (GDM). This study quantifies association densities several types establishments fitness centers with having GDM.
The Global Household Air Pollution (HAP) Measurements database, commissioned by the World Health Organization, provides an organized summary of data reported in literature describing HAP microenvironments, methods and measurements. As June 2018, database contains measurements from 43 countries obtained 196 studies published through 2016. includes information useful for understanding range household personal air pollution that have been collected a country, as well characteristics cooking...
Abstract A COVID-19 lockdown may impact household fuel use and food security for ∼700 million sub-Saharan Africans who rely on polluting fuels (e.g. wood, kerosene) energy typically work in the informal economy. In an settlement Nairobi, surveys administered before (n=474) after (n=194) a mandatory COVID-19-related community documented socioeconomic/household impacts. During lockdown, 95% of participants indicated income decline or cessation 88% reported being insecure. Three quarters cooked...
Use of polluting cooking fuels generates household air pollution (HAP) containing health-damaging levels fine particulate matter (PM2.5). Many global epidemiological studies rely on categorical HAP exposure indicators, which are poor surrogates measured PM2.5 levels. To quantitatively characterize a large scale, multinational measurement campaign was leveraged to develop and personal models.The Prospective Urban Rural Epidemiology (PURE)-AIR study included 48-hour monitoring kitchen...
Uptake of clean cooking fuels (CCF), such as liquefied petroleum gas (LPG), in place traditional wood, charcoal, and kerosene can improve public health by reducing household air pollution exposures. Though studies have cross-sectionally examined socioeconomic determinants fuel adoption, little is known about disparities CCF use over time. Data from the third (2005-06) fourth (2015-16) rounds National Family Health Survey covering 109,041 601,509 households, respectively, were used to examine...
Liquefied petroleum gas (LPG) is a clean cooking fuel that emits less household air pollution (HAP) than polluting fuels (e.g. charcoal, wood). While switching from to LPG can reduce HAP and improve health, the impact of 'stacking' (concurrent use LPG) on adverse health symptoms headaches, eye irritation, cough) among female cooks uncertain.