The combustion of fuels (gasoline, LPG, diesel oil and so on...) in vehicle engines produces a lot of substances and gases. Depending on their concentration, their chemical stability and their adverse effects on environment and human being, the most relevant compounds in the exhaust gas are SO , CO, NOx, H S and O . 2 2 3 Traffic is the source of pollution in a road tunnel, It has a harmful imp...

According to the importance of Locals impact on conservation, this research had tried find role locals in protection natural resources and ecosystems, also clarify external laws which are affecting local's livelihood. This done Ab-e Ask village is located edge Lar National Park along Haraz River, one five protected rivers Iran, it used public participatory methods. Using “Problem Tree,” “Before...

In this study, a water quality model of Haraz basin was used as an evaluative tool to estimate the spatial distribution of variables that are related to water quality and nutrient loads of the Haraz River. Previous studies performed in this river indicate that trout culture activity along the Haraz River have led to various changes in the water quality parameters. In the present work, the possi...

Suspended particles in rivers can act as carriers of potentially bioavailable metal species and are thus an emerging area of interest in river system monitoring. The delineation of bulk metals concentrations in river water into dissolved and particulate components is also important for risk assessment. Linear relationships between bulk metal concentrations in water (CW,tot) and total suspended ...

The focus on small isolated populations provides important insights into the factors affecting the distribution of inheritable traits. Here, we present a report on the distribution of the CCR5 ∆32 mutation in the so far unstudied innate Sudanese population of Shagia people. The genetic material (buccal swabs) was collected from 125 individuals living in three African villages, Abu Haraz, Shibab...