Project: Novel approach for sampling and integrated sample preparation for avian influenza identification

Supervisors: Dr Loic Coudron

I am Tanojit Paul, holding a BSc in Earth Science (2018) and an MSc in Geology (2020). Following my studies, I joined the Central Institute of Mining and Fuel Research, where I investigated the relationships between rock properties and ultrasonic wave velocities. Later, I worked at the Indian Statistical Institute, focusing on atmospheric particulate matter and its carbon composition.

Currently, my PhD research centres on developing advanced methods for airborne environmental DNA collection. Using high pathogenicity avian influenza virus as a model, my project aims to enhance our understanding of airborne disease transmission. By combining electrostatic precipitation and microfluidics, I am working to collect, concentrate, and purify airborne genetic material, enabling more efficient detection and sequencing of airborne pathogens.

Project: Advancing dispersion modelling of radioactivity releases resulting from increasingly frequent Chernobyl Exclusion Zone (ChEZ) wildfire events

Supervisors: Dr Peter Martin, Prof. Tom Scott, Dr Sarah Millington

I completed master’s degree in Pharmaceutical Science from University of Greenwich and Bachelor of Pharmacy from Kathmandu University. Before starting the Aerosol Science CDT, worked as a Pharmacy Technician for aseptic manufacturing of cytotoxic and monoclonal antibody.

My PhD research focuses on utilising both laboratory methods and simulatory approaches to examine and quantify the characteristics and behaviour of radioactive aerosols derived from the combustion (to varying levels) of contaminated woodlands within the Chernobyl Exclusion Zone. Working closely with met office scientist, this research aims to utilise and improve the existing radiometric mapping data (both airborne and ground based) to provide a well calibrated radiation distribution model of various environments and fuel sources/reservoirs that comprise ChEZ.

Project: Surface properties of microscopic aerosol droplets

Supervisors: Dr Bryan Bzdek

Background: Being raised up in a city with severe air pollution sparked my interest in aerosol research. I received my MSci from the American University of Beirut, where I studied the effect of green spaces on air pollution. This research involved analysing recorded values of particulate matter (PM), measured black carbon (BC), elements and heavy metals. We developed a new analytical method for the determination of heavy metals using ICP-MS with low-concentration acid. Additionally, I utilized SEM-EDX as a qualitative method to understand the morphology of the particles across different sites.

PhD: In this project we will try to set a limit on when to call a “strong surfactant” especially when we want to extrapolate the smaller sizes because this will be important for climate model. We will also want to develop what equations we want to use that would describe the hygroscopic growth of a particle and how to implement this into a climate model.

Project: Traceable Characterisation of a Novel Ultrafine Aerosol Source for Improved Instrument Calibration

Supervisors: Dr Paul Williams and Dr James Allan

I am a passionate researcher in Atmospheric Sciences with a strong focus on air quality monitoring and regulation. Growing up in Kenya, I witnessed first-hand the effects of environmental degradation and air pollution, fuelling my dedication to finding innovative solutions for environmental challenges. Over the years, I have been involved in several air quality projects across Kenya, collaborating with both local and international partners. My experience includes monitoring pollutants using reference-grade equipment, deploying low-cost sensors, analysing satellite data for air quality applications, and engaging with stakeholders to address urban air pollution.

My work has directly contributed to improving air quality management in Nairobi and Mombasa, where I have supported the deployment of air quality stations, conducted training for stakeholders, and mapped pollution hotspots to inform policy and interventions. Through my PhD, I aim to deepen my expertise in aerosols and contribute to advancing metrology practices, addressing current limitations in ultrafine particle calibration in the UK. In the long term, I aspire to translate knowledge gained into impactful solutions for developing countries, fostering sustainable air quality management and regulatory frameworks where they are most needed.

My PhD focuses on advancing the commercial Silver Particle Generator (SPG) into a versatile multi-source Solid Particle Generator, designed for rapid and traceable calibration of aerosol instruments for particles as small as sub-10 nm. Through the exploration of alternative materials, in-depth particle characterization, and collaboration with industry leaders, the project aims to significantly expand the SPG’s applications. This innovation will enable both particle number and mass calibrations with exceptional stability and repeatability, all within a single facility. The upgraded SPG will serve as the foundation for a state-of-the-art calibration facility at the National Physical Laboratory, bridging critical gaps in the UK’s aerosol metrology capabilities and supporting industries like aerospace and automotive in meeting environmental compliance standards.

Project: Phage therapy for respiratory infections

Supervisors: Dr Shan Goh, Prof Darragh Murnane, Dr Laura Urbano, Prof. Ian Johnston

During my time at University of Hertfordshire studying a Bachelor of Science in Biological Sciences, I gained a passion for bacteriophage research under the supervision of Dr Shan Goh.
Now I am partaking in a PhD which focuses on how bacteriophages can be aerosolised and deliver to the lungs in hopes of treating antimicrobial resistant bacterial infections. It will visualise the effects of aerosolization on the bacteriophage and assess efficacy of this sort of treatment.