List of Articles Open Access Article Abstract Page Full-Text 1 - Investigation of Sewage Treatment Conditions in Guilan Province Hospitals Abdolreza Karimi Zahra Rahimi Rashtabadi 20.1001.1.15625532.1399.18.3.1.0 Open Access Article Abstract Page Full-Text 2 - Application of Artificial Neural Network and Regression Model to Predict the Phenomenon of Dust in the City of Ahvaz Nabiollah Hosseini Shahpariyan Mohammad Ali Firozi Seyyed Reza Hosseini Kahnoj 20.1001.1.15625532.1399.18.3.2.1 Open Access Article Abstract Page Full-Text 3 - Investigating the Environmental Effects of Ecotourism and the Role of Environmental Education in Reducing its Destructive Effects(Case study: South Khorasan province) qazaleh daliri Ahmad Nohegar 20.1001.1.15625532.1399.18.3.3.2 Open Access Article Abstract Page Full-Text 4 - Effect of Flooding on Contamination of Agricultural Soils Based on a Case Study Ramin Salmasi 20.1001.1.15625532.1399.18.3.4.3 Open Access Article Abstract Page Full-Text 5 - Assessment and Providing Map of the Desertification Risk in Abu-Ghoveyr Plain, Dehloran, Ilam Province Zahedeh Heidarizadi haji karimi SeyedAbdolhossein Arami Farzad Azadnia 20.1001.1.15625532.1399.18.3.5.4 Open Access Article Abstract Page Full-Text 6 - The Assignment GIS and Land- Use Planning Application in Assessment of Ecotourism Capability (A Case Study In Traditional Ghoori Ghale basin of Paveh Township) Zeinab Khalili Jafar Oladi 20.1001.1.15625532.1399.18.3.6.5 Open Access Article Abstract Page Full-Text 7 - Determination of the Amount of Rare Metals (Zn, Fe, Cu) and Toxic (Pb, Cd, Ni) in Gum of Amygdalus Haussknechtii (Arjan) in Western Jungles of Iran Mohammad Hosseini Ali Mohammadzadeh 20.1001.1.15625532.1399.18.3.7.6 Open Access Article Abstract Page Full-Text 8 - Preventive Criminal Policy on Threats and Destruction of Aquatic in Iran Babak Pourghahramani Ahmad Khani 20.1001.1.15625532.1399.18.3.8.7