Accessibility statement

Dr Ashish Kumar

Research Associate

Research interests

Poor air quality is a major concern in many parts of the world and has detrimental impacts on economy and public health sectors. Indoor environments are also affected with poor air quality across the globe.  

Volatile organic compounds (VOCs) are reactive organic molecules present in air that play a crucial role in influencing the air quality via chemistry and subsequent formation of secondary pollutants.

My research interest is in the characterization and measurement of these VOC species in outdoor and indoor environments. I have extensive working experience in the measurement of gaseous and particulate pollutants in the ambient air and from grab samples collected from various emission sources like biomass burning, biogenic, traffic, personal care product use, cleaning and cooking.

I have participated in field campaigns and laboratory experiments, especially in heavily polluted regions of Indo-Gangetic Plain, to identify the emission sources and quantify their impacts on local air pollution. I am also particularly interested in development of emission inventories from different indoor and outdoor sources. My current research focuses on the quantification of emission rates from various indoor sources through controlled laboratory experiments.

In my research, I use a wide range of chromatography and mass spectroscopy to measure the VOCs in real time. This includes working with instruments like Proton Transfer Reaction-Mass Spectrometer (PTR-MS) and selected ion flow tube mass spectrometry (SIFT-MS).

I also employ the offline techniques to capture the whole air samples in canisters and then analyse them with gas chromatography-mass spectrometer/flame ionization detection/electron capture detection (TD-GC-MS/FID/ECD). Using these, we can then quantify the emission factors or emission rates of VOCs which are an important input parameter in several chemical and air quality forecast models. More information about my work can be found on my website.

Selected publications

Contact details

Dr Ashish Kumar
Research Associate
Department of Chemistry
University of York

Tel: +44 (0)1904 324756

York Research Database link

ORCID link Google Scholar