دي فنيل اترهاي پلي برومه و بي فنيلهاي پلي كلره در گردوخاك خانگي بيرمينگهام انگلستان

عنوان انگليسی

POLYBROMINATED DIPHENYL ETHERS (PBDEs) AND POLYCHLORINATED BIPHENYLS (PCBs) IN HOUSEHOLD DUST IN BIRMINGHAM, UK.

خلاصه انگلیسی

Polychlorinated biphenyls (PCBs) are persistent organic pollutants that were used primarily as insulating fluids in electrical equipment and were banned in the 1970s, even so they are still being found in humans. Polybrominated diphenyl ethers (PBDEs) are nowadays widely used as flame retardants in electronic components, plastics, textiles and building materialsIn this study we analysed vacuum cleaner dust collected from different households and offices in Birmingham where the air was previously analysed using a passive air sampler. We report PCB and PBDE concentrations and determine the proportion of human exposure to PBDEs that can be attributed to household dust. Methods and Materials Dust samples were collected from 11 homes and 5 offices. The volunteers were asked to empty the contents of their vacuum bags into a plastic bag or, if the vacuum had disposable bags these were provided instead.Results and Discussion The concentrations of PBDEs found in household dusts in this study are shown in Table 1. ΣPBDE concentrations ranged from 16 to 626 ng g-1 dust (median=91 ng g-1, mean=179 ng g-1, σn-1 = 213). BDE 99 was the major congener detected in all samples (on average contributing 50% of the total PBDE burden) followed by BDE 47 (23%).

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