Efforts have been made to relate measured concentrations of airborne constituents to their
origins for more than 50 years. During this time interval, there have been developments in …

Is wind direction an adequate marker of air mass history? This review looks at the evolution
of methods for assessing the effect of the origin and pathway of air masses on composition …

Pakistan ranks third in the world in terms of mortality attributable to air pollution, with aerosol
mass concentrations (PM 2.5) consistently well above WHO (World Health Organization) air …

abstract Statistical analysis of air mass back trajectories combined with long-term ambient
air pollution measurements are useful tools for source identification. Using these methods …

Abstract Comparison of fine and coarse fractions in terms of sources and dynamics is scarce
in southeast Mediterranean countries; differences are relevant because of the importance of …

Haze pollution in Beijing is rather deteriorated. Long-term measurement of PM 2.5 from
2005 to 2010 at an urban site in Beijing showed very high concentration level with an …

Atmospheric ammonia (NH 3) is a critical component of our atmosphere that contributes to
air quality degradation and reactive nitrogen deposition; however, our knowledge of NH 3 in …

Fine particulate matter, with an aerodynamic diameter≤ 2.5 μm (PM 2.5), is a severe
problem in China. The lack of ground-based measurements and its sparse distribution …

The study combined multiple models to provide a deeper understanding to soil heavy metal
contamination and source information, which are essential for controlling pollution and …

Episodes of fine-particulate matter (PM 2.5) pollution are a widespread and common
occurrence in China, and have potentially serious implications for human health …