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Ling Mo, Xiaobo Zheng, Yuxin Sun, Lehuan Yu, Xiaojun Luo, Xiangrong Xu, Xiaoquan Qin, Yongli Gao, Bixian Mai
A broad suite of persistent organic pollutants (POPs), including polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), and dichlorodiphenyltrichloroethane (DDT) and its metabolites, were analyzed in pectoral muscle of eight terrestrial passerine bird species from an extensive e-waste recycling site in South China. Concentrations of PCBs, PBDEs, and DDTs in bird samples ranged from 1260-279,000, 121-14,200, and 31-7910ng/g lipid weight, respectively. Insectivorous birds had significantly higher levels of PCBs, PBDEs, and DDTs than those in granivorous birds...
August 15, 2018: Science of the Total Environment
Zhijun Zeng, Xia Huo, Yu Zhang, Zhehong Xiao, Yuling Zhang, Xijin Xu
Environmental lead exposure leads to various deleterious effects on multiple organs and systems, including the hematopoietic system. To explore the effects of lead exposure on platelet indices in preschool children from an informal, lead-contaminated electronic waste (e-waste) recycling area, we collected venous blood samples from 466 preschool children (331 from an e-waste area (Guiyu) and 135 from a non-e-waste area (Haojiang)). Child blood lead levels (BLLs) were determined by graphite furnace atomic absorption spectrophotometry, while platelet indices were quantified using a Sysmex XT-1800i hematology analyzer...
May 12, 2018: Environmental Science and Pollution Research International
Michelle Heacock, Brittany Trottier, Sharad Adhikary, Kwadwo Ansong Asante, Nil Basu, Marie-Noel Brune, Jack Caravanos, David Carpenter, Danielle Cazabon, Paromita Chakraborty, Aimin Chen, Fernando Diaz Barriga, Bret Ericson, Julius Fobil, Budi Haryanto, Xia Huo, T K Joshi, Philip Landrigan, Adeline Lopez, Frederico Magalini, Panida Navasumrit, Antonio Pascale, Sankar Sambandam, Upik Sitti Aslia Kamil, Leith Sly, Peter Sly, Ann Suk, Inoka Suraweera, Ridwan Tamin, Elena Vicario, William Suk
As one of the largest waste streams, electronic waste (e-waste) production continues to grow in response to global demand for consumer electronics. This waste is often shipped to developing countries where it is disassembled and recycled. In many cases, e-waste recycling activities are conducted in informal settings with very few controls or protections in place for workers. These activities involve exposure to hazardous substances such as cadmium, lead, and brominated flame retardants and are frequently performed by women and children...
May 11, 2018: Reviews on Environmental Health
Yu Chen, Mengjun Chen, Yungui Li, Bin Wang, Shu Chen, Zhonghui Xu
Technology innovation has accelerated progress in Information and Communications Technology (ICT), especially in the mobile phones sector. Concurrently, local, national, and international governments are enforcing stricter regulations to protect natural resources and human health. The paper attempts to address the question: Have technological innovations and regulation development had a positive impact on ecosystems and public health? We identified 36 waste mobile phones (WMPs) manufactured between 2002 and 2013, assessed their metals concentration, leachability, and potential impact on environment and human health using digestion, Toxicity Characteristic Leaching Procedure (TCLP), and USEtox model, respectively...
May 8, 2018: Scientific Reports
Sabah M Abdelbasir, Saad S M Hassan, Ayman H Kamel, Rania Seif El-Nasr
The increasing use of electrical and electronic equipment leads to a huge generation of electronic waste (e-waste). It is the fastest growing waste stream in the world. Almost all electrical and electronic equipment contain printed circuit boards as an essential part. Improper handling of these electronic wastes could bring serious risk to human health and the environment. On the other hand, proper handling of this waste requires a sound management strategy for awareness, collection, recycling, and reuse. Nowadays, the effective recycling of this type of waste has been considered as a main challenge for any society...
May 8, 2018: Environmental Science and Pollution Research International
Xuan Zhu, Jingzi Beiyuan, Abbe Y T Lau, Season S Chen, Daniel C W Tsang, Nigel J D Graham, Daohui Lin, Jianteng Sun, Yanheng Pan, Xin Yang, Xiang-Dong Li
Polybrominated diphenyl ethers (PBDEs) are common pollutants released from electronic waste (e-waste) dismantling and recycling activities. Our city-wide survey of agricultural soils in Qingyuan (40 sampling sites), where e-waste recycling has been active, observed exceedance of PBDEs above background levels (average of 251.9ngg-1 , 87 times the regional baseline concentration) together with elevated levels of metals/metalloids at the contamination hotspots, such as As (180.4mgkg-1 ), Cu (100.7mgkg-1 ), Zn (93...
April 1, 2018: Science of the Total Environment
Longfei Jiang, Chunling Luo, Dayi Zhang, Mengke Song, Yingtao Sun, Gan Zhang
Primitive electronic waste (e-waste) recycling activities release massive amounts of persistent organic pollutants (POPs) and heavy metals into surrounding soils, posing a major threat to the ecosystem and human health. Microbes capable of metabolizing POPs play important roles in POPs remediation in soils, but their phylotypes and functions remain unclear. Polychlorinated biphenyls (PCBs), one of the main pollutants in e-waste contaminated soils, have drawn increasing attention due to their high persistence, toxicity, and bioaccumulation...
May 7, 2018: Environmental Science & Technology
Abhishek Kumar Awasthi, Mengmeng Wang, Zhishi Wang, Mrigendra Kumar Awasthi, Jinhui Li
Environmental deterioration and health risk due to improper e-waste management has become a serious issue in India. The major portion of e-waste reaches an unorganized e-waste recycling sector and is then treated by using crude methods. This review article presents a brief highlight on e-waste management status, legislation, and technology uses in India. The present e-waste management needs to be more focused on environmentally sound management, by more active support from all the participants involved in the e-waste flow chain in India...
May 2018: Waste Management & Research
Luis Alberto Henríquez-Hernández, Ana González-Antuña, Luis D Boada, Cristina Carranza, José Luis Pérez-Arellano, Maira Almeida-González, María Camacho, Manuel Zumbado, Fernando Fernández-Fuertes, Manuel Tapia-Martín, Octavio P Luzardo
The Canary Islands are one of the outermost regions of the European Union (EU), which are located barely 100 km from the coasts of Morocco. Although these islands are located in Africa, the degree of socioeconomic development and lifestyle in this archipelago is comparable to that of any other region of Europe. It is well established that the main determinants of human exposure to elements have to do both, with their place of residence and with habits related to their lifestyle. For this reason, we wanted to study the pattern of contamination by elements of these two populations so geographically close, but so different both in their lifestyle, and the geological origin of the territory where they live...
May 1, 2018: Science of the Total Environment
Yan Wang, Xiaohui Sun, Lianying Fang, Keqiu Li, Ping Yang, Liqing Du, Kaihua Ji, Jinhan Wang, Qiang Liu, Chang Xu, Guang Li, John P Giesy, Markus Hecker
BACKGROUND: Managing and recycling electronic waste (e-waste), while useful and necessary, has resulted in significant contamination of several environments in China. The area around Tianjin, China has become one of the world's largest e-waste disposal centers, where electronics are processed by manually disassembly or burning, which can result in serious exposure of workers to a multitude of toxicants. OBJECTIVE: The present study assessed potential genomic damage in workers involved in recycling e-waste...
May 1, 2018: Environment International
Ningombam Linthoingambi Devi, Ishwar Chandra Yadav, Paromita Chakraborty, Qi Shihua
Although India never manufactured polychlorinated biphenyls (PCBs), evidence suggests the prevalence of PCBs in multi-environmental matrices. Despite the high level of PCBs that has been detailed in the major urban areas of India, little is known about the fate and sources of PCBs in Northeast India (NEI). This motivated us to investigate the contamination level and sources of PCBs in the surface soil. In this study, the environmental concentration and sources of 25 PCBs were investigated in surface soil (n = 60) from three states of NEI (lower Assam, Manipur, and Tripura)...
April 30, 2018: Archives of Environmental Contamination and Toxicology
Jonathan N Hogarh, Nobuyasu Seike, Yuso Kobara, Derick Carboo, Julius N Fobil, Shigeki Masunaga
With recent evidence that persistent organic pollutants (POPs) such as polychlorinated biphenyls (PCBs) are emerging in environmental media in some developing countries that otherwise have sparing production and usage history, it has become important to identify such contemporary source factors of PCBs and the risks this may pose, in line with the global consensus on POP management and elimination. The present study investigated contaminations from atmospheric PCBs in Ghana, deciphered source factors, and accessed risk of exposure to dioxin-like PCBs (DL-PCBs)...
April 29, 2018: Environmental Science and Pollution Research International
Yunjiang Yu, Ruixue Ma, Lin Yu, Ze Cai, Hongyan Li, You Zuo, Zhengdong Wang, Hui Li
Tetrabromobisphenol A (TBBPA) is one of the world's most widely used brominated flame retardants (BFRs) and considered as persistent halogenated contaminant. E-wastes contain a range of toxic chemicals, including BFRs and heavy metals, exerting adverse impacts to human health and environment. Nevertheless, comprehensive evaluation on combined toxicity of these co-existing pollutants is limited. This study conducted a subchronic effects of cadmium and TBBPA on the development and antioxidative defense system as well as thyroid functions in female rats through single and combined exposure at environmentally relevant doses for a 20-day consecutive administration...
April 24, 2018: Chemico-biological Interactions
Xiang Zeng, Xijin Xu, Qilin Qin, Kai Ye, Weidong Wu, Xia Huo
The purpose of this study was to investigate the associations between levels of lead (Pb), cadmium (Cd), chromium (Cr), and manganese (Mn) in the PM2.5 and blood and physical growth, and development parameters including birth length and weight, height, weight, body mass index (BMI), head circumference, and chest circumference in preschool children from Guiyu (e-waste exposure area) and Haojiang (the reference area). A total of 470 preschool children from Guiyu and Haojiang located in southeast coast of China were recruited and required to undergo physical examination and blood tests during the study period...
April 25, 2018: Environmental Geochemistry and Health
Yingying Chen, Hang Lu, Fei Xiu, Tao Sun, Yamei Ding, Juqing Liu, Wei Huang
Building transient electronics are promising and emerging strategy to alleviate the pollution issues from electronic waste (e-waste). Although a variety of transient devices comprising organic and inorganic materials have been described, transient light emitting devices are still elusive but highly desirable because of the huge amount of lighting and display related consumer electronics. Here we report a simple and efficient fabrication of large-area flexible transient alternating current electroluminescent (ACEL) device through a full-solution processing method...
April 23, 2018: Scientific Reports
Yanhong Zeng, Chenchen Huang, Xiaojun Luo, Yine Liu, Zihe Ren, Bixian Mai
The levels of polychlorinated biphenyls (PCBs) and short/median-chain chlorinated paraffins (S/MCCPs) in 68 home-produced eggs collected in 2013 and 2016 from an electronic-waste (e-waste) site in South China were measured and the human dietary exposure to these two classes of contaminants via egg consumption was calculated. The levels of PCBs, SCCPs, and MCCPs varied from 236 to 8870 ng/g lipid weight (lw), 477 to 111,000 ng/g lw, and 125 to 91,100 ng/g lw, respectively. There are no significant differences in the levels of PCBs, SCCPs, and MCCPs between 2013 and 2016 (p > 0...
April 10, 2018: Environment International
Joseph Bennett, Diamond Jones, Xu Huang, Robert J Hamers, Sara E Mason
The rapid increase in use of Li-ion batteries in portable electronics has created a pressing need to understand the environmental impact and long-term fate of electonic waste (e-waste) products such as heavy and/or reactive metals. The type of e-waste that we focus on here are the complex metal oxide nanomaterials that compose Li-ion battery cathodes. While in operation the complex metal oxides are in a hermetically sealed container. However, at the end of life, improper disposal can cause structural transformations such as dissolution and metal leaching, resulting in a significant exposure risk to the surrounding environment...
April 13, 2018: Environmental Science & Technology
Yu Liu, Xiaojun Luo, Li-Qian Huang, Le Huan Yu, Bi-Xian Xian Mai
Few studies have examined the accumulation and fate of persistent halogenated organic pollutants (HOPs) in insects. We measured HOPs, including dichlorodiphenyltrichloroethanes (DDTs), polychlorinated biphenyls, and halogenated flame retardants, in insects from four taxonomic groups collected from an e-waste site. Dragonfly larvae collected from a pond contained the highest concentrations of all chemicals except DDTs, while the litchi stinkbugs contained the lowest. Different insect taxa exhibited different contaminant patterns which could be attributed to their habitats and feeding strategies...
April 12, 2018: Environmental Science & Technology
Nan Ding, She-Jun Chen, Tao Wang, Ting Wang, Bi-Xian Mai
Halogenated flame retardants (HFRs) and water-soluble ions (WSIs) were investigated in fine particulate matter (PM2.5 ) collected from an urban site, a rural e-waste recycling (e-waste) site, and a background site in South China. Generally, the WSI concentrations were highest at the e-waste site and comparable at the other sites and secondary species (SO4 2- , NH4 + , and NO3 - ) were dominant components at the three sites. The compositions and seasonal variations of WSIs at the e-waste site were distinct from those in the urban and background areas suggesting significant influence of e-waste recycling on PM2...
April 5, 2018: Environmental Pollution
Sapna Mishra, B R Shamanna, Srinivasan Kannan
Introduction: Occupational Health hazards of handling and management of electronic waste is a nascent subject. Improper and unscientific handling of e-waste can invite significant human and environmental health risks. Objective: To study the level of awareness about electronic waste and its health hazards amongst informal handlers in Musheerabad, Hyderabad. Methodology: Ethical approval and informed consents were obtained from Institutional Ethical Committee, University of Hyderabad and from the participants respectively before the commencement of study...
September 2017: Indian Journal of Occupational and Environmental Medicine
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