Journal of Environmental Health and Sustainable Development(JEHSD) Journal of Environmental Health and Sustainable Development A Review on the Importance of Hormones Monitoring and their Removal in Conventional Wastewater Treatment Systems Mohammad Taghi Ghaneian 1 , Roya Peirovi 1* , Ali Asghar Ebrahimi 1 1 Environmental Science and Technology Research Center, Department of Environmental Health Engineering, Shahid Sadoughi University of Medical Sciences, Yazd, Iran. A R T I C L E I N F O ABSTRACT REVIEW ARTICLE Introduction: Micro pollutants have become one of the most important environmental concerns around the world. These natural and synthetic compounds have been called Endocrine Disrupting Chemicals (EDCs) due to their interference with the normal functionof the endocrine system in humans and animals. They also include natural and synthetic hormones and their metabolite, surfactant, insecticide, as well as some pharmaceuticals and health care products. Due to the effects of these compounds, importance of their monitoring in the environment is perceived like other countries. Materials and Methods: This paper was carried out on the basis of studies accomplished from2000 to 2017 and also the ones published in databases such as Google Scholar, Elsevier, Scopus, Science direct, Magiran, and SID using hormone removal, micro pollutant removal, removal hormones from wastewater, sex hormones removal, steroidal hormones, hormone removal from wastewater, and removal efficiency of micro pollutants as the keywords. PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) statement was used for selecting articles. Results: Sexual reproduction of fish exposed to estrogenic compounds was changed. Phytoestrogens exist on a certain strain of clover which caused severe infertility in sheepgrazing on them. Some studies have reported that a decrease in men's sperm and breast cancer in women are caused by exposure to estrogenic compounds. Conclusion: According to the current study, further studies are needed to determine the entry routes of steroid hormones into aquatic environment, the detection techniques and measurements, as well as the best removal method. Article History: Received: 10 January 2017 Accepted: 22 April 2017 *Corresponding Author: Roya Peirovi Email: rpeirovi@yahoo.com Tel: +989155683814 Keywords: EDCs, Gonadal Steroid Hormones, Hormon Removal, Wastewater Treatment Citation: Ghaneian MT, Peirovi R, Ebrahimi AA. A Review on the Importance of Hormones Monitoring and their Removal in Conventional Wastewater Treatment Systems. J Environ Health Sustain Dev. 2017; 2(2): 310-8. Introduction For decades, the issues of micro-pollutants have become one of the most important environmental concerns all over the world. Micro-pollutants can commonly be found in various concentrations ranging from nano-grams to micro-grams per liter in aquatic environments 1-2 . Although low concentration of micro-pollutants may be of no significance, they can bring some challenges for water treatment processes 3-4 . Additionally, these pollutants can enter drinking water resources through different ways, so dealing with them is of great importance due to health issues 5-7 . These natural and synthetic compounds have attracted