Air Mercury Monitoring at the Baikal Area
| Autor: | Sergey Pogarev, Tamara V. Khodzher, V. A. Obolkin, S. E. Sholupov, Nikolay Mashyanov, Elena Molozhnikova, Vladimir Potemkin, Vladimir Ryzhov |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Atmospheric Science
010504 meteorology & atmospheric sciences Cruise chemistry.chemical_element 010501 environmental sciences Environmental Science (miscellaneous) Atmospheric sciences 01 natural sciences Sink (geography) Meteorology. Climatology medicine 0105 earth and related environmental sciences Shore GMOS air mercury monitoring geography geography.geographical_feature_category Baikal Lake Lead (sea ice) acid gases Seasonality medicine.disease Mercury (element) chemistry HYSPLIT emission sources Environmental science QC851-999 Monthly average |
| Zdroj: | Atmosphere, Vol 12, Iss 807, p 807 (2021) Atmosphere Volume 12 Issue 7 |
| ISSN: | 2073-4433 |
| Popis: | The GMOS (Global Mercury Observation System) project has the overall goal to develop a coordinated observing system to monitor mercury on a global scale. Here we present the long-term (2011–2020) air mercury monitoring data obtained at the Listvyanka station located at a shore of Lake Baikal, Siberia. The long-term monitoring shows obvious seasonal variation of the background mercury concentration in air, which increases in the cold and decreases in the warm season. The short-term anomalies are associated with the wind carrying the air from the industrial areas where several big coal-fired power plants are located. A positive correlation between the mercury, SO2 and NO2 concentrations is observed both in the short-term variations and in the monthly average concentrations. The analysis of forward and backward trajectories obtained with the HYSPLIT model demonstrates revealing of the mercury emissions sources. During the cruise of 2018, the continuous air mercury survey over Lake Baikal covered 1800 km. The average mercury concentration over Baikal is notably less in comparison with the average value obtained at the onshore Listvyanka station during the same days of the cruise. That can lead to the conclusion that Baikal is a significant sink of the atmospheric mercury. |
| Databáze: | OpenAIRE |
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