Investigation of The Ambient Nitrogen Oxides (NOx) Trends at Tronoh, Perak

In these days, the emissions of nitrogen oxides and nitrogen dioxide into
ambient air has become one of the most concerned issue. As we all aware, the major
contributor to these pollutants are industrial activities and vehicles. The area whereby
industrial development and increase in number of vehicles is significant, will result in
more total nitrogen oxides and nitrogen dioxide emitted to the air. This situation will
cause tremendous effect to human, plants, and animals. In fact, these pollutants will
become more complex when it reacts with other compounds to form secondary air
pollutant. Hence, this study aims to determine the effect of industrial activities and
vehicles to the concentration level of nitrogen oxides and nitrogen dioxide in selected
area as well as the influence of temperature and relative humidity to the trend of
pollutant’s concentration.