期刊
MARINE POLLUTION BULLETIN
卷 144, 期 -, 页码 61-67出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2019.04.039
关键词
Microplastics; Adsorption; Heavy metals; Multiple pollution; Field measurement
资金
- Basic Scientific Fund for National Public Research Institutes of China [2016Q02/2017Y03]
- Research Cooperation and Exchange of Marine Litter and Microplastics, China [QY0518011]
- Special Operational Funding Project of the State Oceanic Administration-Marine Environmental Monitoring/Assessment and Capacity Upgrading
- Taishan Scholar Project of Shandong Province
In this study we examined the adsorption characteristics of heavy metals on microplastic through laboratory test and field test. We demonstrated that polyvinyl chloride, polypropylene, polyethylene, polyamides and poly formaldehyde could adsorb lead, copper and cadmium in the simulating solution, and the heavy metals showed higher adsorbance on PVC and PP particles compared with PA, PE and POM. In the field experiment, the adsorption rate and concentration of heavy metals varied significantly among different plastic types and locations. The adsorbability of PP and PVC toward Pb and Mn was strongly correlated with the metal concentration in seawater. We also compared the adsorption quantity of PP to heavy metals and polycyclic aromatic hydrocarbons which resulted in an order of magnitude within one month. During the adsorption, the surface morphology of the microplastics which were washed and corroded by seawater underwent a rough-smooth-rough changing process, and different materials had great differences.
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