Atmospheric particle-bound mercury levels were measured in PM10 aerosols (HgP) at a rural site (Mahasar, Haryana) during winter 2014–15 and summer 2015. The PM10 HgP was determined by using Differential Pulse Anodic Stripping Voltammetry through standard addition methods while the trace metals were determined by using an Atomic Absorption Spectroscopy. The mass concentrations of HgP varied from 591 to 1533 pg/m3 with an average of 1009 ± 306 pg/m3 during the winter, while the mass concentrations of HgP varied from 43 to 826 pg/m3 with an average of 320 ± 228 pg/m3 during the summer. However, it is difficult to assess whether these levels are harmful or not because there is no standard value available as National Ambient Air Quality Standard. The higher concentrations of HgP during winters were possibly due to favourable local meteorological conditions for the stagnation of particulate matter in the lower atmosphere and the increased emissions from existing natural or anthropogenic sources, regional sources and long-range transportation. Relatively low concentrations of HgP during summer might be due to increased mixing heights as well as scavenging effect because some light to heavy rain events were observed during summer time sampling. However, among other metals determined, the concentration of HgP was the lowest during both the seasons. The study may be useful in assessing the health impacts of PM10 HgP and other metals.

中文翻译：

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在德里附近的农村地区追踪颗粒汞的环境水平及其来源

2014-15 年冬季和 2015 年夏季，在农村地区（哈里亚纳邦马哈萨邦）的 PM10 气溶胶 (HgP) 中测量了大气颗粒结合汞水平。 PM10 HgP 是通过标准添加方法使用差分脉冲阳极溶出伏安法测定的，而使用原子吸收光谱法测定痕量金属。冬季 HgP 的质量浓度从 591 到 1533 pg/m3 不等，平均为 1009 ± 306 pg/m3，而 HgP 的质量浓度从 43 到 826 pg/m3 不等，平均为 320 ± 228 pg/m3 m3 在夏季。然而，很难评估这些水平是否有害，因为没有可用的标准值作为国家环境空气质量标准。冬季 HgP 浓度较高可能是由于当地有利的气象条件使低层大气中的颗粒物停滞，以及现有自然或人为来源、区域来源和远距离运输的排放增加。夏季期间 HgP 浓度相对较低可能是由于混合高度增加以及清除效应，因为在夏季采样期间观察到了一些小雨到大雨事件。然而，在确定的其他金属中，HgP 的浓度在两个季节中都是最低的。该研究可能有助于评估 PM10 HgP 和其他金属对健康的影响。区域资源和远程运输。夏季 HgP 浓度相对较低可能是由于混合高度增加以及清除效应，因为在夏季采样期间观察到了一些小雨到大雨事件。然而，在确定的其他金属中，HgP 的浓度在两个季节中都是最低的。该研究可能有助于评估 PM10 HgP 和其他金属对健康的影响。区域资源和远程运输。夏季期间 HgP 浓度相对较低可能是由于混合高度增加以及清除效应，因为在夏季采样期间观察到了一些小雨到大雨事件。然而，在确定的其他金属中，HgP 的浓度在两个季节中都是最低的。该研究可能有助于评估 PM10 HgP 和其他金属对健康的影响。