Iran is a developing country in Middle East which has experienced some political and economical turbulence during the past decades. Government of Iran, after the 1979 Islamic revolution, has devoted considerable resources on national health, including the pharmaceutical sector. As a result, health indicators have improved substantially over the past two decadesnd the availability and affordabil...

dust pollution has become a serious environmental problem especially in recent decades. the present study aim was the investigation of the levels of pm10 concentration in kermanshah, western iran and also measured five important heavy metals (pb, cd, as, hg and cr) in some samples during 2005 to 2011.a total 2277 samples were collected from air pollution measurement station belonging to the dep...

urbanization is a pervasive global trend. the development of residential areas and road network in hajighoshan watershed (northern iran) has been observed in the recent several decades. the objective of this study is the quantitative investigation of the effects of impervious surfaces development and urban development on runoff generation and flood hazard. the study of urban area development wa...