It should be considered that due to the high temperatures in the Khuzestan province and volatilization of mercury, this element could not be detected during the summer season.
The results show that the mean concentration of Hg vapor in the air samples of Ahvaz were higher
than the mean world value during the winter and summer seasons.
However, the values at the different air samples were in the range of the mercury concentration of the urban area. The highest value of Hg in the air samples due to the metal fusion industry
was recorded in the winter and summer season 4.56 ng/m3 and 5.72 ng/m3, respectively. In the case of the rainwater samples the highest value of mercury was recorded 0.77 ±0.0019 μg/lit at the metal fusion industries area, whereas the lowest value recorded at the residential area that doesn’t have any emission