List of Articles pollution Open Access Article Abstract Page Full-Text 1 - Use of activated carbon powder in activated sludge technology to investigate the effect of wastewater treatment Petrochemical industry on a laboratory scale for water purification محمد رضا فرشادی روحالله مختاران جواد احدیان Open Access Article Abstract Page Full-Text 2 - Qualitative zoning river Karun, Dez and Karkheh using water quality indices مرجان سالاری حیدر زارعی فریدون وفایی مجتبی زارع صفت Open Access Article Abstract Page Full-Text 3 - Prediction of Longitudinal Dispersion Coefficient of Pollution in Rivers Using a Modified of Neural Networksby Genetic Algorithm عباس پارسایی امیر حمزه حقی آبی امیر مرادی نژاد Open Access Article Abstract Page Full-Text 4 - Evaluation of groundwater contamination in the Marand study area under urban wastewater reuse conditions in agriculture using GODS فرناز سلامتی امیرحسین کوکبی نژاد محمدعلی حسن پور