...
首页> 外文期刊>Environmental Science & Technology >Hexabromocyclododecanes and Tetrabromobisphenol-A in Indoor Air and Dust in Birmingham, UK: Implications for Human Exposure
【24h】

Hexabromocyclododecanes and Tetrabromobisphenol-A in Indoor Air and Dust in Birmingham, UK: Implications for Human Exposure

机译:英国伯明翰的室内空气和灰尘中的六溴环十二烷和四溴双酚-A:对人体暴露的影响

获取原文
获取原文并翻译 | 示例
           

摘要

Hexabromocyclododecanes (α-, β-, and γ-HBCDs) and tetrabromobisphenol-A (TBBP-A) were determined in indoor air from homes (n = 33; median concentrations ∑HBCDs = 180 pg m~(-3); TBBP-A = 15 pg m~(-3)), offices (n = 25; 170; 11), public microenvironments [n = 4; 900; 27) and outdoor air (n = 5; 37; 1). HBCDs and TBBP-A were also determined in dust from homes (n = 45; median concentrations ∑HBCDs = 1300 ng g~(-1); TBBP-A = 62 ng g~(-1)), offices (n = 28; 760; 36), cars (n = 20; 13,000; 2), and public microenvironments (n - 4; 2700; 230). While ∑HBCDs in car dust significantly exceeded (p < 0.05) those in homes and offices, TBBP-A in car dust was significantly lower (p < 0.05) than that in homes and offices. No significant differences were observed between ∑HBCDs and TBBP-A in air or dust from homes and offices. Compared to dietary and inhalation exposures, dust ingestion constitutes an important pathway of exposure to HBCDs and TBBP-A for the UK population. Specifically, using average dust ingestion rates and concentrations in dust, dust ingestion constitutes for adults 34% (TBBP-A) and 24% (HBCDs) of overall exposure, and for toddlers 90% (TBBP-A) and 63% (HBCDs). Inhalation appears a minor exposure pathway to both HBCDs and TBBP-A. On average, dust is 33% α-, 11% β-, and 56% γ-HBCD, while air is 22% α-, 11% β-, and 65% γ-HBCD.
机译:在家庭室内空气中测定六溴环十二烷(α-,β-和γ-HBCD)和四溴双酚-A(TBBP-A)(n = 33;中位数∑HBCDs = 180 pg m〜(-3); TBBP- A = 15 pg m〜(-3)),办公室(n = 25; 170; 11),公共微环境[n = 4; 900; 27)和室外空气(n = 5; 37; 1)。在家中的灰尘中也测定了HBCDs和TBBP-A(n = 45;六溴环十二烷中位数浓度∑HBCDs = 1300 ng g〜(-1); TBBP-A = 62 ng g〜(-1)),办公室(n = 28 ; 760; 36),汽车(n = 20; 13,000; 2)和公共微环境(n-4; 2700; 230)。虽然汽车灰尘中的∑HBCDs大大超过了家庭和办公室(p <0.05),但汽车灰尘中的TBBP-A却大大低于家庭和办公室(p <0.05)。在家中和办公室的空气或灰尘中,∑HBCD和TBBP-A之间没有发现显着差异。与饮食和吸入接触相比,粉尘摄入是英国人群接触HBCD和TBBP-A的重要途径。具体而言,使用平均粉尘摄入率和粉尘浓度,成人的粉尘摄入量占总暴露量的34%(TBBP-A)和24%(HBCDs),而幼儿占90%(TBBP-A)和63%(HBCDs) 。吸入似乎是六溴环十二烷和TBBP-A的次要暴露途径。平均而言,灰尘为33%的α-,11%的β-和56%的γ-六溴环十二烷,而空气为22%的α-,11%的β-和65%γ-六溴环十二烷。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号