State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
Waste Manag. 2014 Jun;34(6):1059-65. doi: 10.1016/j.wasman.2013.09.006. Epub 2013 Sep 30.
Very few data for polybrominated diphenyl ethers (PBDEs) were available in the electronic waste (e-waste) as one of the most PBDEs emission source. This study reported concentrations of PBDEs in e-waste including printer, rice cooker, computer monitor, TV, electric iron and water dispenser, as well as dust from e-waste, e-waste dismantling workshop and surface soil from inside and outside of an e-waste recycling plant in Shanghai, Eastern China. The results showed that PBDEs were detected in the majority of e-waste, and the concentrations of ΣPBDEs ranged from not detected to 175 g/kg, with a mean value of 10.8 g/kg. PBDEs were found in TVs made in China after 1990. The mean concentrations of ΣPBDEs in e-waste made in Korea, Japan, Singapore and China were 1.84 g/kg, 20.5 g/kg, 0.91 g/kg, 4.48 g/kg, respectively. The levels of ΣPBDEs in e-waste made in Japan far exceed the threshold limit of RoHS (1.00 g/kg). BDE-209 dominated in e-waste, accounting for over 93%. The compositional patterns of PBDEs congeners resembled the profile of Saytex 102E, indicating the source of deca-BDE. Among the samples of dust and surface soil from a typical e-waste recycling site, the highest concentrations of Σ18PBDEs and BDE-209 were found in dust in e-waste, ranging from 1960 to 340,710 ng/g and from 910 to 320,400 ng/g, which were 1-2 orders of magnitude higher than other samples. It suggested that PBDEs released from e-waste via dust, and then transferred to surrounding environment.
有关多溴二苯醚 (PBDEs) 的数据非常有限，因为电子废物 (e-waste) 是 PBDEs 的最重要排放源之一。本研究报告了电子废物中 PBDEs 的浓度，包括打印机、电饭锅、电脑显示器、电视、电熨斗和饮水机，以及电子废物中的灰尘、电子废物拆解车间以及上海一家电子废物回收厂内外的表层土壤中的 PBDEs 浓度。结果表明，大多数电子废物中都检测到了 PBDEs，ΣPBDEs 的浓度范围从未检出到 175μg/kg，平均值为 10.8μg/kg。在中国，1990 年后生产的电视机中发现了 PBDEs。韩国、日本、新加坡和中国生产的电子废物中 ΣPBDEs 的平均浓度分别为 1.84μg/kg、20.5μg/kg、0.91μg/kg 和 4.48μg/kg。日本生产的电子废物中 ΣPBDEs 的含量远远超过 RoHS 的阈值限制 (1.00μg/kg)。BDE-209 在电子废物中占主导地位，占比超过 93%。PBDEs 同系物的组成模式与 Saytex 102E 的相似，表明其来源为十溴二苯醚。在一个典型的电子废物回收场地的灰尘和表层土壤样本中，电子废物灰尘中的 Σ18PBDEs 和 BDE-209 浓度最高，范围分别为 1960 至 340710ng/g 和 910 至 320400ng/g，比其他样本高 1-2 个数量级。这表明 PBDEs 从电子废物通过灰尘释放，然后转移到周围环境中。
