Temitope Olayemi

Nanoscale Chemical Imaging of Soot and Brown Carbon Components in Individual Atmospheric Particles

Steven A. L. Sharpe, Temitope Olayemi, Julius Ese, Seth Koloski et autres

Abstract Biomass-burning aerosols contain complex mixtures of soot carbon (SC), brown carbon (BrC), organic carbon (OC), and inorganic (IN) constituents whose spatial distributions within individual particles strongly influence aerosol optical properties, atmospheric chemistry, and climate impacts. Scanning transmission X-ray microscopy (STXM) coupled …

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Stratospheric aerosol perturbation by tropospheric biomass burning and deep convection

Xiaoli Shen, Justin Jacquot, Yaowei Li, Steven Sharpe et autres

The stratosphere is often considered to be dynamically stable with limited vertical exchange; however, episodic deep convection can even transport tropospheric air masses into the upper troposphere (UT) and even across the tropopause into lower stratosphere (LS). We deployed a newly developed …

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Chemical imaging of individual stratospheric particles sampled over North America

Steven Sharpe, Yaowei Li, Sophia Benjemia, Felipe Rivera-Adorno et autres

Chemical imaging was used to examine the morphology, composition, and mixing state of stratospheric particles. The results showed evidence of wildfire-derived black carbon and organic material reaching the upper troposphere and lower stratosphere.

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Spectro-microscopic analysis of soot particle composition and source attribution

Felipe Rivera-Adorno, Steven Sharpe, Temitope Olayemi, Julius Iruoghene Ese et autres

Ambient soot particles significantly impact Earth’s radiative balance, human health, and atmospheric visibility. Their microstructural properties depend on formation and aging mechanisms, which vary by emission source and atmospheric processes. Hence, accurately identifying sources of soot enhances our understanding of their physicochemical …

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Investigating New Particle Formation and Growth Over an Urban Location in the Eastern Mediterranean

T. C. Ajith, Eli Windwer, Chunlin Li, Zheng Fang et autres

Abstract This study investigates the new particle formation (NPF) events at an urban location in the Eastern Mediterranean. Particle size distribution, particulate chemical composition, and gaseous pollutants were monitored in Rehovot, Israel (31°53″N 34°48″E) during two campaigns: from April 29 to 3 …

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Multimodal Chemical Characterization of Brown Carbon in Atmosphere and Snowpack during SAIL Field Campaign Report

Alexander Laskin, Ryan C. Moffet, Steven Sharpe, Temitope Olayemi et autres

The main goal of this field project was to characterize the chemical and physical properties of light-absorbing particles (LAP) present in the atmosphere and snowpack. The specific field efforts included: 1) online measurement and sampling of light-absorbing particles using a Magee Scientific …

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AE33 Aethalometer Records at RMBL [AMF2] from April 2022 to October 2023

Steven Sharpe, Temitope Olayemi, Ryan C. Moffet, Alexander Laskin

The dataset presents atmospheric mass loadings of black carbon (BC) and brown carbon (BrC), during the Surface Atmosphere Integrated Field Laboratory (SAIL) campaign that took place from 2021 – 2023 in Gothic, CO. A Magee Scientific aethalometer (model AE33) was deployed at …

TRAC Time Tags of individual particle samples collected for microscopy analysis at RMBL [AMF2] from June 2023 to August 2023

Steven Sharpe, Temitope Olayemi, Ryan C. Moffet, Alexander Laskin

The dataset presents the time tags of individual particle samples collected on microscopy substrates during the Surface Atmosphere Integrated Field Laboratory (SAIL) campaign in Gothic, CO. A Time Resolved Aerosol Collector was deployed at the Rocky Mountain Biological Laboratory, 200 m north …

Exploring the Interplay of AHD, TB, and Cryptococcal Antigen in Nasarawa State

Olufunmilola Abodunde, Folake Isona, Oluwasola Oni, Chinwe Umeozulu et autres

This study explored the existing relationships between Advanced HIV Disease (AHD), Tuberculosis (TB), and Cryptococcal Antigen (CrAg) among People Living with HIV (PLHIV) in Nasarawa State, Nigeria. This was achieved by investigating the relationship and prevalence of TB and CrAg among individuals …

Community Health Worker Outreach Activities in Tuberculosis Diagnosis and Treatment Programmes: An Assessment in Northern Nigerian Villages,

Obi Kingsleyoluwa, Sunday Adebayo, Temitope Olayemi

Tuberculosis (TB) remains a significant public health concern in northern Nigerian villages, with low rates of diagnosis and treatment completion. A mixed-methods approach was employed, including surveys and qualitative interviews to assess programme impact on diagnostic accuracy and patient engagement. Community health …

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Community Health Worker Outreach Activities in Tuberculosis Diagnosis and Treatment Programmes: An Assessment in Northern Nigerian Villages,

Obi Kingsleyoluwa, Sunday Adebayo, Temitope Olayemi

Tuberculosis (TB) remains a significant public health concern in northern Nigerian villages, with low rates of diagnosis and treatment completion. A mixed-methods approach was employed, including surveys and qualitative interviews to assess programme impact on diagnostic accuracy and patient engagement. Community health …

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Multilevel Regression Analysis to Evaluate Adoption Rates in Nigeria's Public Health Surveillance Systems,

Olakunle Ajayi, Precious Obiora, Temitope Olayemi

Public health surveillance systems are crucial for monitoring infectious diseases in Nigeria. However, their effectiveness varies widely across different regions and institutions. A multilevel logistic regression model will be employed to assess the impact of institutional and geographical factors on the adoption …

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