<br>电子垃圾回收区灰尘和土壤中6PPD和6PPDQ的时空变化,Science of the Total Environment

当前位置： X-MOL 学术 › Sci. Total Environ. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

电子垃圾回收区灰尘和土壤中6PPD和6PPDQ的时空变化
Science of the Total Environment ( IF 8.2 ) Pub Date : 2024-03-05 , DOI: 10.1016/j.scitotenv.2024.171495
Zhuxia Zhang ₁ , Chenxu Dai ₁ , Siyan Chen ₁ , Hongfei Hu ₁ , Rongyi Kang ₁ , Xijin Xu ₂ , Xia Huo ₁

Affiliation

-(1,3-二甲基丁基)-'-苯基-苯二胺 (6PPD) 及其衍生物 6PPDQ 已在各种环境介质中检测到，对生态系统和生物健康造成有害后果。然而，6PPD和6PPDQ在电子废物回收区周围的分布情况目前尚不清楚。我们从传统电子废物回收区、新兴回收园区和参考区域周围的区域收集了土壤和灰尘样本。与参考区域相比，传统电子废物回收区周围住宅区的灰尘中发现了更高水平的 6PPD（中位数：108.99 与 33.57 ng/g，< 0.01）。与传统电子废物回收区相比，新兴电子废物回收园区周围的灰尘样本中检测到的 6PPDQ 含量较低（中位数：15.40 纳克/克与 46.37 纳克/克，< 0.05）。灰尘样品中 6PPD 和 6PPDQ 的中位浓度高于土壤样品中的浓度 (< 0.001)。灰尘和土壤中6PPD和6PPDQ的浓度随季节变化，总浓度最高出现在冬季。多元线性回归分析结果表明，6PPDQ 与温度呈负相关，与 6PPD、O 和辐射呈正相关。这项研究证实电子废物是 6PPD 和 6PPDQ 的潜在贡献者。在住宅区，6PPD 和 6PPDQ 更容易积聚在灰尘中而不是土壤中。新兴的电子垃圾回收园区极大改善了当地6PPDQ污染状况。需要进一步的研究来了解新发现的物质在不同环境中的分布。

"点击查看英文标题和摘要"

Spatiotemporal variation of 6PPD and 6PPDQ in dust and soil from e-waste recycling areas

-(1,3-dimethylbutyl)-′-phenyl--phenylenediamine (6PPD) and its derivative 6PPDQ have been detected in various environmental media, with harmful consequences for both ecosystems and biological health. However, the distribution of 6PPD and 6PPDQ in areas around e-waste recycling areas is currently unknown. We collected soil and dust samples from areas around a traditional e-waste recycling zone, an emerging recycling park, and a reference area. Higher levels of 6PPD were found in dust from residential areas around the traditional e-waste recycling zone compared to the reference area (median: 108.99 versus 33.57 ng/g, < 0.01). Lower levels of 6PPDQ were detected in dust samples from around the emerging e-waste recycling parks compared to traditional e-waste recycling zones (median: 15.40 versus 46.37 ng/g, < 0.05). The median concentrations of 6PPD and 6PPDQ were higher in the dust samples than in the soil samples ( < 0.001). The concentrations of 6PPD and 6PPDQ in the dust and soil varied seasonally, with the highest total concentrations occurring in the winter. Results from a multiple linear regression analysis indicate that 6PPDQ is negatively correlated with temperature and positively correlated with 6PPD, O, and radiation. This study confirms that e-waste is a potential contributor to 6PPD and 6PPDQ. In residential areas, 6PPD and 6PPDQ are more likely to accumulate in dust than in soil. The emerging e-waste recycling parks have greatly improved the local 6PPDQ pollution situation. Further studies are necessary to understand the distribution of newly found substances in various settings.

更新日期：2024-03-05

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南