نتایج جستجو برای: highway pollution

تعداد نتایج: 80666  

Journal: :iranian journal of health sciences 0
meisam yousefi environmental engineering, kn toosi, university of technology majid ehteshami head and assistant professor, environmental eng. dept. kn toosi univ. of technology, tehran, iran amir sadrnejad professor, kn toosi, university of technology

background and purpose: in the process of rapid urbanization and industrialization in developing countries, environmental pollution is a major concern. one of the fastest growing problems of environmental pollution is an excessive intake of lead in urban soils. lead concentrations in urban soil may result from human activities such as vehicle emissions and industrial activities. this study aime...

Journal: :Europan journal of science and technology 2021

Natural soils have been polluted by variety of human activity such as urbanization, industrialization and excessive fertilizer pesticide usage. However, the agricultural alongside highways, especially those international ones, are relatively at higher risk heavy metal pollution depending on intensive track traffic. Therefore, total 72 soil samples from 24 sampling sites were taken 5 km interval...

2016
Julann A Spromberg David H Baldwin Steven E Damm Jenifer K McIntyre Michael Huff Catherine A Sloan Bernadita F Anulacion Jay W Davis Nathaniel L Scholz

Adult coho salmon Oncorhynchus kisutch return each autumn to freshwater spawning habitats throughout western North America. The migration coincides with increasing seasonal rainfall, which in turn increases storm water run-off, particularly in urban watersheds with extensive impervious land cover. Previous field assessments in urban stream networks have shown that adult coho are dying premature...

Amir Sadrnejad, Majid Ehteshami, Meisam Yousefi,

Background and purpose: In the process of rapid urbanization and industrialization in developing countries, environmental pollution is a major concern. One of the fastest growing problems of environmental pollution is an excessive intake of lead in urban soils. Lead concentrations in urban soil may result from human activities such as vehicle emissions and industrial activit...

2000
Mark Hart Lynda M White

Urban joblessness and inner city deprivation are a feature of the late twentieth century throughout the developed world. This paper considers the effectiveness of spatiallytargeted programmes in creating employment in deprived urban areas. It begins by discussing the twin themes of “enterprise” and “localism” which have dominated the UK policy response to urban problems in the 1990s and goes on...

2011
CHRISTINE BORDELON Jeffery R. Roesler Leslie Struble David Lange Dwight D. Eisenhower

K. Zia Dabirian, K. Zia Ghazvini, M. Khanzadi,

Highway construction projects are one of the most important construction projects in the world. Therefore predicting the time of these kinds of projects is important. Basically highway projects are including few activities which are repeating along the horizontal direction. One of the best methods for scheduling these types of projects is linear scheduling method. The repetitive nature of the h...

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