Effect of Heating Temperature on Ammonia Emission in the Mainstream Aerosols from Heated Tobacco Products.

Heated tobacco products are devices that deliver nicotine into the body via inhalation of the mainstream aerosols generated during direct and/or indirect heating of tobacco leaf material. Ammonia in aerosols potentially increases the alkalinity and, therefore, the proportion of free nicotine for easy absorption. Meanwhile, ammonia can be a cause of adverse health effects when involved in the aerosols.

Photocatalytic degradation of atmospheric fine particulate matter (PM) collected on TiO supporting quartz fibre filter.

Carbonaceous constituents in fine particulate matter (PM) are often associated with adverse health effects in humans. Although air filtration technology is widely used for preventing exposure to PM, the trapped PM still has hazardous property if not treated subsequently. Thus, this study aimed to realise detoxification of PM with a photocatalytic decomposition of carbonaceous compounds in PM samples collected on a quartz fibre filter coated with titanium dioxide (TiO).