With the rapid development of industry, studies on lead pollution in total suspended particulate matter (TSP) have received extensive attention. This paper analyzed the concentration and pollution sources of lead in the Cuihu Wetland in Beijing during the period of 2016–2017. The results show that the lead contents in TSP in the Cuihu Wetland were approximately equal in summer and spring, greater in winter, and greatest in autumn. The corresponding lead concentrations were 0.052, 0.053, 0.101, and 0.115 ng/m3, respectively. We compared the 206Pb/207Pb data with other materials to further understand the potential sources of atmospheric lead. The mean values of 206Pb/207Pb from spring to winter were 1.082, 1.098, 1.092, and 1.078, respectively. We found that the lead sources may be associated with coal burning, brake and tire wear, and vehicle exhaust emissions. We also calculated the enrichment factor values for the four seasons, and the values were all much greater than 10, indicating that the lead pollution is closely related to human activities.
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机译：随着工业的快速发展，对总悬浮颗粒物（TSP）中铅污染的研究受到了广泛关注。本文分析了2016-2017年北京翠湖湿地中铅的浓度和污染源。结果表明，翠湖湿地TSP中铅的含量在夏季和春季大致相等，冬季较大，秋季最大。相应的铅浓度分别为0.052、0.053、0.101和0.115 ng / m 3 。我们将 206 Pb / 207 Pb数据与其他材料进行了比较，以进一步了解大气铅的潜在来源。春季至冬季， 206 Pb / 207 Pb的平均值分别为1.082、1.098、1.092和1.078。我们发现铅源可能与燃煤，刹车和轮胎磨损以及车辆废气排放有关。我们还计算了四个季节的富集因子值，这些值都远大于10，这表明铅污染与人类活动密切相关。
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