Dirtier air from a weaker monsoon

The core information for this publication's citation.: 
Chin, M. (2012), Dirtier air from a weaker monsoon, Nature Geoscience, 5, 449-450.
Abstract: 

Aerosol concentrations in China have reached unhealthy levels, at least locally. Model simulations suggest that a significant contribution comes from the weakening monsoon circulation in past decades, trapping more pollutants over land.