People are exposed to air pollution from a range of indoor and outdoor sources. Concentrations of nitrogen dioxide (NO2), which is hazardous to health, can be significant in both types of environments. This paper reports ...

There is an increasing concern about the occurrence of polycyclic aromatic hydrocarbons (PAHs) in the environment as they are ubiquitous in ambient air and some of them are among the strongest known carcinogens. PAHs and ...