Characteristics of Gaseous Elemental Mercury in a Suburban Area of Shanghai, China.
Bull Environ Contam Toxicol
; 113(1): 4, 2024 Jul 04.
Article
em En
| MEDLINE
| ID: mdl-38965118
ABSTRACT
To clarify gaseous elemental mercury (GEM) in suburban megacities in the Yangtze River Delta region, China, we observed GEM concentrations from December 2019 to November 2020 in Wujing town, a suburban area of Shanghai. The annual mean GEM concentration was 1.44 ± 0.88 ng m-3. Compared with the historical monitoring data of GEM in Shanghai over the past 10 years, the concentration of GEM showed a decreasing trend. The monthly mean concentrations of GEM showed clear seasonal variation, with higher values in the spring and winter. In spring and winter, typical Hg pollution events were observed, which could be mostly associated with increased local anthropogenic activity and temperature inversion. The results of the correlation analysis of the daily mean GEM concentrations with the AQI and backward trajectory calculations indicate that mercury pollution at monitoring sites can be affected by local, regional and interregional influences.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Monitoramento Ambiental
/
Poluentes Atmosféricos
/
Mercúrio
País/Região como assunto:
Asia
Idioma:
En
Revista:
Bull Environ Contam Toxicol
Ano de publicação:
2024
Tipo de documento:
Article