STUDY OF MUNICIPAL LANDFILL SITE FOR DIOXIN/FURAN AND CHLORINATED PESTICIDES FOR AL-HUSAINIYAT LANDFILL IN AL-MAFRAQ JORDAN
Seventeen congeners of polychlorinated
dibenzo-p-dioxins/polychlorinated dibenzofurans
and 16 individual components of organochlorinated
pesticides were inspected in the groundwater and
soil from the old and new Al-Husainiyah landfills located near the Az-zaatari refugee camp in AlMafraq, Jordan. The highest total concentration of
organochlorine pesticides and polychlorinated
dibenzo-p-dioxins/polychlorinated dibenzofurans
were found in the surface soil (0?15 cm) at the old
landfill site, with a value of 88.33 ?g/kg (dry weight)
and 2,522.2 ng/kg (dry weight), respectively. The
highest sum concentration among the organochlorinated pesticide compounds for all samples was found
for ?-HCH, with a value of 182.48 ?g/kg (dry
weight), while the highest sum concentration among
polychlorinated dibenzo-p-dioxins/polychlorinated
dibenzofurans congeners was found for 2,3,7,8-Tetrachlorodibenzeno-p-dioxin with a value of 2132.11
ng/kg (dry weight). For polychlorinated dibenzo-pdioxins/polychlorinated dibenzofurans congeners, it
has turned out that the highest sum of the Toxicity
Equivalent concentration among the congeners was
found for 2,3,7,8 tet-Dioxin with a value of 2132.1
ng TEQ/kg (dry weight). Both organochlorinated
pesticides and polychlorinated dibenzo-p-dioxins/polychlorinated dibenzofurans contaminations
were found below the method limit of detection in
the soil (15-30 cm) and groundwater samples. This
environmental study provides up-to-date data for researchers around the world of organochlorinated
pesticides and polychlorinated dibenzo-p-dioxins/polychlorinated dibenzofurans concentrations in
Al-Husainiyah as indicator for pollution and comparison purposes.