Characteristics and health risk assessment of heavy metal pollution in atmospheric particulate matter in different regions of the Yellow River Delta in China
Characteristics and health risk assessment of heavy metal pollution in atmospheric particulate matter in different regions of the Yellow River Delta in China
复制标题
我国黄河三角洲不同地区大气颗粒物重金属污染特征及健康风险评估
DOI：
10.1007/s10653-022-01318-5
复制
发表时间：
2022-06-29
影响因子：
4.2
通讯作者：
Guo，Beibei
中科院分区：
文献类型：
--
作者：
Liu，Ting;Zhao，Changsheng;Guo，Beibei
为了解长三角不同区域大气重金属污染特征、时空变化特征及健康风险，对2016-2017年长三角地区大气颗粒物进行了采样研究。在长三角不同区域（工业园区、主城区和农村）共选择10个监测点，采用原子荧光光谱法和石墨炉原子吸收光谱法对重金属进行监测。结果表明：垦利经济开发区和垦利城区的总悬浮颗粒物（TSP）、PM10（空气动力直径小于10 μm的颗粒物）和PM2.5（空气动力直径小于2.5 μm的颗粒物）含量均高于其他各点；10个点大气样品中重金属的浓度范围不同，相差5个数量级，其中铜（Cu）含量最高，最高浓度为4.375 μg/m3，颗粒汞（Hg）含量最低，最低浓度为0.00001 μg/m3。9种重金属中，镉（Cd）、铅（Pb）、汞（Hg）含量冬季高于夏季，铬（Cr）、镍（Ni）、铜（Cu）、锰（Mn）含量夏季高于冬季。除汞外，其他8种重金属在颗粒物中的含量均呈现出城市地区和经济开发区浓度高于城镇和自然保护区的趋势，这可归因于工业活动和燃煤燃料排放。分别对成人和儿童进行了健康风险评估，结果显示致癌物无明显致癌风险，但As和Cr具有重大潜在致癌风险。在非致癌物质中，Mn的非致癌风险最大，城市地区和经济开发区的风险最大。本研究对长三角不同区域大气重金属污染特征及健康风险评价进行了调查，以补充国内外对长三角大气颗粒物重金属的研究内容。研究中国重金属的污染和迁移也至关重要。
To understand the characteristics, temporal and spatial variation, and health risks of atmospheric heavy metal pollution in different areas of the YRD (Yellow River Delta), atmospheric particles samples were collected in the YRD in China during 2016–2017. A total of 10 monitoring points were chosen in different areas (industrial parks, main urban areas, and rural areas) in the YRD, heavy metals were monitored using atomic fluorescence spectrometry and graphite furnace atomic absorption spectrometry. The results showed that TSP (total suspended particulate), PM10(particulate matter with an aerodynamic diameter less than 10 μm), and PM2.5(particulate matter with an aerodynamic diameter less than 2.5 μm) contents were higher in the Kenli EDZ (economic development zone) and Kenli urban areas than those in other points. The concentration range of heavy metals in atmospheric samples at 10 points was different, with a difference of five orders of magnitude, of which the content of copper (Cu) was the highest, with the highest concentration of 4.375 μg/m3, and the content of particulate mercury (Hg) was the lowest, with the minimum concentration of 0.00001 μg/m3. Among the nine heavy metals, the contents of cadmium (Cd), lead (Pb), and Hg were higher in winter than in summer, and chromium (Cr), nickel (Ni), Cu, and manganese (Mn) were higher in summer than in winter. In addition to Hg, the contents of the other eight heavy metals in particulate matter showed a trend that urban areas and EDZs had higher concentrations than cities and towns and nature reserves, which can be attributed to industrial activities and coal-fired fuel emissions. Health risk assessment was carried out for adults and children, respectively, and the results showed that carcinogens have no obvious carcinogenic risk, but As and Cr have major potential carcinogenic risk. Among the noncarcinogenic substances, Mn has the greatest noncarcinogenic risk, and urban areas and economic development zones have the greatest risk. This study investigated the characteristics and health risk assessment of atmospheric heavy metal pollution in different areas in the YRD to supplement the research contents of atmospheric particulate heavy metals in the YRD in domestics and overseas. It is also critical to study the pollution and migration of heavy metals in China.