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Transformers Polychlorinated Biphenyls Analysis and Waste Management in Gas Companies, Case Study: Iran Publisher



Fouladifard R1, 2 ; Yousefi N3 ; Golmohammadi AM4 ; Salehiparvar K4 ; Khazaei M5 ; Mahvi AH3, 6
Authors

Source: International Journal of Environmental Analytical Chemistry Published:2023


Abstract

Polychlorinated Biphenyls (PCBs) are categorised as a type of persistent organic pollutants (POPs). In developing countries, transformer oils are the major sources of PCB release to the environment. This study examined the pollution of PCBs from transformers of gas company cathodic protection stations in Qom province, during 2011. The PCBs were measured using the electrochemical method. According to the results, the PCBs concentration of transformers oil was ranged between 0 and 958 ppm. Most stations PCBs concentrations (over 60%) were higher than recommended level (50ppm) enacted by theDepartment of Environment (DOE) of Iran. The results showed that among all cathodic protection stations; 10.4% were in a safe level, 29.2% in precaution level, and 60.4% in dangerous level. ANOVA test presented the significant difference between levels of the PCBs in different stations (P < 0.05). It is recommended that proper and safe waste management strategies for the exposure, transportation, and storage for this type of waste be taken into account. © 2021 Informa UK Limited, trading as Taylor & Francis Group.
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