摘要
从2013年冬季至2015年秋季对电子废弃物拆解场地周边进行大气监测,对不同季节的大气污染物PM_(2.5)含量以及PM_(2.5)中所含As、Cu、Cd、Pb、Zn等重金属含量随时间的变化做了污染分析。研究发现从2013年冬季至2015年秋季每个季度PM_(2.5)含量的平均值分别为152.87、205.45、62.20、173.69、273.89、164.57、192.76、188.90μg/m^3,均超过了国家空气质量二级标准(GB3095-2012)的浓度限值75μg/m^3,超标倍数分别为2.04、2.74、0.83、2.32、3.65、2.19、2.57、2.52倍。PM_(2.5)中的各种重金属元素在不同采样点随着季节的变化差异显著,这和每个季节的不同风向以及拆解厂区的拆解工作有很大关系。由电子废弃物拆解场地周边PM_(2.5)中重金属的相关性分析可以初步推断As、Cd、Cu和Pb、Zn可能来源相同。
The atmosphere of e-waste dismantling space surrounding was monitored from winter 2013 to autumn2015. PM（2.5）samples were collected near the e-waste disposal area. The concentrations and pollution levels of PM（2.5）in different seasons were investigated and analyzed. The concentrations of As,Cu,Cd,Pb,Zn in PM（2.5）in different seasons were also analyzed. Results showed that the average concentrations of PM（2.5）from winter 2013 to autumn 2015 were152. 87,205. 45,62. 20,173. 69,273. 89,164. 57,273. 89,164. 57 μg/m^3,separately. The results exceeded the limit concentration 75 μg/m^3 of the national air quality standard（ GB3095-2012）. The concentration exceeded the national standard value in 2. 04,2. 74,0. 83,2. 32,3. 65,2. 19,2. 57,2. 52 times,separately. The pollution trend of the heavy metals with the seasons change in different sampling points were different,it may be contact with the wind directions in different seasons and the dismantling work in e-waste disposal site. The correlation analysis of heavy metals speculated that the source of the heavy metals As,Cd,Cu and Pb,Zn may come from the electronic waste pollution,which produced in the process of dismantling.
出处
《广州化工》
CAS
2016年第11期175-178,254,共5页
GuangZhou Chemical Industry
基金
国家自然科学基金项目(21307080)
上海市知识服务平台项目(ZF1224)
校重点学科建设项目(XXKYS1404)
上海第二工业大学研究生项目基金(A30NH1513012)
