Preliminary investigation of microplastics in the production process of sea salt sourced from the Bohai Sea, China, using an optimised and consistent approach
Preliminary investigation of microplastics in the production process of sea salt sourced from the Bohai Sea, China, using an optimised and consistent approach
复制标题
使用优化且一致的方法对来自中国渤海的海盐生产过程中的微塑料进行初步调查
DOI：
10.1080/19440049.2021.1956691
复制
发表时间：
2021-08
期刊：
影响因子：
--
通讯作者：
Biao Yang
中科院分区：
文献类型：
--
作者：
Di Feng;Hang Yuan;Jie Tang;Xiaofang Cai;Biao Yang
摘要本研究对中国海盐生产过程中微塑料的特征变化进行了初步研究。在中国渤海海盐生产过程中，先后采集了海水、饱和盐水、原盐、粗盐、精盐5个代表性样品。对微塑料的预处理方法进行了优化，并通过颗粒参比回收率进行了评价。在五个样品的微塑性特性进行了研究，使用一致的预处理，显微镜和光谱分析。结果表明，微塑料存在于海盐生产的各个阶段。在制盐过程中，微塑料从海水蒸发到海水蒸发，再到盐结晶，再到外力加工的“旅程”中，尺寸在18 μm ~ 4936 μm之间的微塑料丰度从23±8个颗粒kg−1大幅增加到413±61个颗粒kg−1，而较大的微塑料（≥1000 μm）所占比例从33%下降到9%。研究结果说明了生产工艺对海盐微塑料污染的影响。
ABSTRACT In this study, we present a preliminary investigation of the characteristic changes in microplastic during the production process of sea salt in China. Five representative samples, including seawater, saturated brine, crude salt, coarse salt, and refined salt were successively collected from the production process of sea salt sourced from the Bohai Sea in China. The pretreatment method of microplastics was optimised and evaluated by the recovery rates of particle references. Microplastic characteristics in the five samples were investigated using consistent pretreatment, microscopic, and spectroscopic analyses. Results indicated that microplastics were present in every stage of sea salt production. During the “journey” of microplastics in salt production from seawater-to-seawater evaporation, to salt crystallisation, and external force processing, the abundance of microplastics with size ranging from 18 μm to 4936 μm increased substantially from 23 ± 8 to 413 ± 61 particles kg−1, while the proportion of larger microplastics (≥1000 μm) decreased from 33% to 9%. The results illustrate the effect of the production process on microplastic contamination of sea salt.
登录
查看更多内容
DOI：
10.1080/10937404.2019.1700598
发表时间：
2019-12
期刊：
Journal of Toxicology and Environmental Health, Part B
影响因子：
--
作者：
Laura Rubio;R. Marcos;Alba Hernández
通讯作者：
Laura Rubio;R. Marcos;Alba Hernández
影响因子：
4.6
作者：
Rochman CM;Tahir A;Williams SL;Baxa DV;Lam R;Miller JT;Teh FC;Werorilangi S;Teh SJ
通讯作者：
Teh SJ
影响因子：
3.5
作者：
Woodall LC;Sanchez-Vidal A;Canals M;Paterson GL;Coppock R;Sleight V;Calafat A;Rogers AD;Narayanaswamy BE;Thompson RC
通讯作者：
Thompson RC
影响因子：
11.4
作者：
Yang, Dongqi;Shi, Huahong;Kolandhasamy, Prabhu
通讯作者：
Kolandhasamy, Prabhu
影响因子：
8.9
作者：
Weiwei Zhang;Shoufeng Zhang;Juying Wang;Yan Wang;J. Mu;Ping Wang;Xinzhen Lin;Deyi Ma
通讯作者：
Weiwei Zhang;Shoufeng Zhang;Juying Wang;Yan Wang;J. Mu;Ping Wang;Xinzhen Lin;Deyi Ma