Determination of 2, 4-dichlorophenoxyacetic acid concentration in Ahvaz water distribution network in 2018-2019

Subject Areas : water and wastewater

reza  jalilzadeh yengjeh ¹ (Department of Environmental Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran)
Naghmeh  Orooji ² (Department of Environmental Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran)
Afshin  Takdastan ³ (Associate professor of department of environmental health in jendi shapour ahwaz University)
Sahand  Jorfi ⁴ (Department of Environmental Health Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.)
Amir hossein davami  davami ⁵ (Department of Environmental Management -HSE, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran.)

Received: 2020-12-19 Accepted : 2021-01-26 Published : 2020-11-21

Keywords: Distribution network, 2, 4-D, drinking water, Ahvaz,

Abstract :

The purpose of this study was survey on 2,4-D concentration in Ahvaz drinking water in 2018-2019. A descriptive cross-sectional study was based on 10- month sampling program (from December 2018 to September 2019) in six points of distribution networks were conducted. All measured concentrations were less than the maximum allowable concentrations recommended by the National Standards Organization of Iran (1053) and WHO guidelines. In this study, the total THMs determined in autumn, winter and spring ranged from <0.004-2.98μg/L, 0.02-2.41μg/L and 0.01-0.04μg/L, and in summer less than the LOD, respectively. Different studies have shown that pesticides residue concentration in water samples have a relationship with the amount of pesticides used in an area, physical and chemical refractory properties of pesticides and environmental conditions. Thus, using resistant pollutants such as pesticides will be a serious threat to health of water consumers if they are not properly controlled.