List of Articles Open Access Article Abstract Page Full-Text 1 - Economical- Environmental Evaluation of Substitution Old Minibuses With New Ones in Public Transportation Fleet of Tehran Zahra Abedi Reza Arjmandi Farideh Atabi Elnaz Keivani Open Access Article Abstract Page Full-Text 2 - Management of practical pollution reduction of Qomrud River Saeed yarmohammadi Mahmood Sharieat Seyed masood monavar monavari Parvin farshchi Open Access Article Abstract Page Full-Text 3 - Land suitability classification for sustainable use in Aq qaleh area Siroos Shakeri Aziz Moameni Open Access Article Abstract Page Full-Text 4 - Evaluation and optimization of the collection and transportation system of solid waste management in Zanjan with GIS application Azadeh medhat Masood Monavvari Amir Hossein Javid Akbar Eslami Mohsen Ahad negad Open Access Article Abstract Page Full-Text 5 - Surveying on decontamination Effect of Water Lily (Nymphaea Alba) for Heavy Metals (Pb, Cd and Mn) in Liquid Solution Faramarz Moattar Elahe Javadi Abdolreza Karbassi Seyed Massoud Monavvari Open Access Article Abstract Page Full-Text 6 - investigation of DDT' s Ccentration ïn muscle Issue of Rutilus Fris On southeast of caspian sea Ali Mashinchian Abass Esmaili Sari Seied Mohamad reza Fatemi Eslami Ameneh Binesh Open Access Article Abstract Page Full-Text 7 - Investigation of pollution related to sludge obtained from the effluent treatment Of slaughter house and making the practical proposal (Study was conducted in mash had slaughter house) Mostafa Khezri Masoud Monavari Parvin Farshchi Shadi Kafi Mallak Open Access Article Abstract Page Full-Text 8 - Lightening Techniques in Landscape Design kian Nasri Frah Habib Mojtabah Ansari Hasan Ali Laghai