Department of Biology, Cherepovets State University, Cherepovets, Russia, 162600.
Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences, Borok, Russia, 152742.
Int Arch Occup Environ Health. 2022 Jul;95(5):1027-1042. doi: 10.1007/s00420-021-01812-w. Epub 2021 Oct 25.
The purpose of this work is to study mercury levels in the hair of different social and demographic groups of the population of the Vologda region in Northwest Russia. This region is selected due to a heterogeneous distribution of rivers and lakes-a resource base for fishing.
The mercury content was determined in the hair from the root with a length of about 2 cm. The concentration of total mercury in human hair was determined by the atomic absorption method without preliminary sample preparation using an RA-915M mercury analyzer and a PYRO-915 + pyrolysis unit.
The average level of mercury in the human hair was 0.445 μg/g (median 0.220 μg/g). The concentration of mercury in the hair of people older than 44 years (0.875 μg/g) was three times higher than in the hair of children under 18 years of age (0.270 μg/g). People who eat fish less than once per month had a hair mercury concentration of 0.172 μg/g, for 1-2 times a month 0.409 μg/g, once a week 0.555 μg/g, and several times a week 0.995 μg/g. The concentration of mercury in the hair of smokers (0.514 μg/g) was higher than in the hair of non-smokers (0.426 μg/g).
Significantly higher concentrations of mercury were observed in the hair of participants from the western part of the region, where reservoirs are the main commercial sources of fish products. The data showed that the main source of people's mercury intake was fish.
本研究旨在检测俄罗斯西北部沃洛格达州不同社会和人口群体的头发中的汞含量。选择该地区是由于其河流和湖泊分布不均，这些是渔业的资源基础。
从发根处剪下约 2 厘米长的头发，采用原子吸收法，无需样品预处理，直接使用 RA-915M 汞分析仪和 PYRO-915+热解单元测定头发中总汞的浓度。
平均而言，人体头发中的汞含量为 0.445μg/g（中位数为 0.220μg/g）。44 岁以上人群的头发中汞浓度（0.875μg/g）是 18 岁以下人群的头发中汞浓度（0.270μg/g）的三倍。每月食用鱼类少于一次的人群，头发中的汞浓度为 0.172μg/g；每月食用 1-2 次的人群，头发中的汞浓度为 0.409μg/g；每月食用 1 次的人群，头发中的汞浓度为 0.555μg/g；每周食用多次的人群，头发中的汞浓度为 0.995μg/g。吸烟人群的头发中汞浓度（0.514μg/g）高于不吸烟人群（0.426μg/g）。
在该地区西部的参与者头发中，汞浓度明显较高，这些地区的水库是鱼类产品的主要商业来源。数据表明，人们摄入汞的主要来源是鱼类。
