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电子废物回收区的尘埃和土壤中6PPD和6PPDQ的时空变化

Zhuxia Zhang¹, Chenxu Dai¹, Siyan Chen¹

¹Laboratory of Environmental Medicine and Developmental Toxicology, Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, Guangdong, China.

The Science of the total environment

|March 7, 2024

概括

电子废物回收有助于N-1,3-二甲) -N'--p-phenylenediamine (6PPD) 和其衍生品6PPDQ的污染. 新兴的回收公园显示6PPDQ水平下降,这表明环境管理得到了改善.

科学领域:

环境化学环境化学
生态毒理学生态毒理学
污染监测污染监测污染监测

背景情况:

N-(1,3-二甲基) -N'--p-phenylenediamine (6PPD) 和其衍生品6PPDQ是环境污染物,具有不利的生态和健康影响.
在电子废物 (电子废物) 回收站附近的6PPD和6PPDQ的分布在很大程度上仍然没有特征.

研究的目的:

调查电子废物回收区周围的土壤和尘埃样本中的6PPD和6PPDQ的存在和分布.
为了比较传统的电子废物回收区,新兴的回收公园和参考区域之间的污染水平.
确定影响6PPD和6PPDQ环境度的因素.

主要方法:

从传统的电子废物回收区,新兴的回收公园和参考区域收集土壤和尘埃样本.
使用分析化学技术量化6PPD和6PPDQ度.
统计分析,包括多重线性回归,以确定相关性和影响因素.

主要成果:

与参考区域相比,在传统电子废物回收区附近的尘埃中发现了较高的6PPD度.
新兴的电子废物回收公园的6PPDQ水平低于传统区域.
6PPD和6PPDQ的平均度在尘埃中明显高于在土壤中.
观察到季节性变化,冬季度达到峰值.
6PPDQ水平与温度有负相关性,与6PPD,O3和辐射有正相关性.

结论:

电子废物回收得到证实是6PPD和6PPDQ环境污染的重要来源.
在电子垃圾场附近的住宅区,灰尘是6PPD和6PPDQ的主要积聚媒介.
新兴电子废物回收公园的实施明显改善了当地6PPDQ污染情况.
需要进一步的研究,以阐明这些新出现的污染物的分布模式在不同的环境环境中.

关键词:

6PPDD是什么意思 6PPDQQ 是一个很好的方法.尘埃尘埃的尘埃,就是我们的尘埃.电子垃圾是一种电子垃圾.土壤土壤土壤.时间空间的变化.

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