Historical variations of atmospheric trace metal pollution in Southwest China: Reconstruction from a 150-year lacustrine sediment record in the Erhai Lake

Li, Kai; Liu, Enfeng; Zhang, Enlou; Li, Yanling; Shen, Ji; Liu, Xingqi

doi:10.1016/j.gexplo.2016.10.009

Cited by 43 publications

(18 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In recent years, a few investigations have evaluated Pb pollution history in recent centuries based on various Deleted: the 6 kinds of natural archives such as lake sediment cores, peat and ice cores from both relatively remote areas (e.g. Bao et al, 2016;Beaudon et al, 2017;Li et al, 2017;Zhang et al, 2014) and populated areas (e.g. Li et al, 2018;Yao and Xue, 2014;Yu et al, 2016;Zhang et al, 2016) in China.…”

Section: Introductionmentioning

confidence: 99%

“…However, as most of these studies are individual cases, they usually only have local implications In this study, an investigation of anthropogenic Pb history during the last one or two centuries was carried out based on enrichment factors (EFs), reconstructed anthropogenic fluxes, and Pb isotopes in seventeen sediment records from relatively remote areas of China. Given that anthropogenic Pb in these records was mainly derived from atmospheric input (Bao et al 2015(Bao et al , 2016Beaudon et al, 2017;Li et al, 2017;Liu et al, 2013), they likely reflect past atmospheric Pb pollution in China. Therefore, the main objectives of this work are to reveal temporal and spatial variations of atmospheric Pb in the last century in relatively remote areas of China and to discuss influence factors of atmospheric Pb evolution, especially the relation with socioeconomic development.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Spatiotemporal trends of atmospheric Pb over the last century across inland China

Wan

Yang

Jin

et al. 2020

Science of The Total Environment

View full text Add to dashboard Cite

Sedimentary records from remote regions contain pollutants derived dominantly from atmospheric input, and thus have the potential to trace past atmospheric pollution history. Based on seventeen sediment records from relatively remote areas of China, atmospheric Pb pollution history during the last century was studied. These records suggest some slight pollution before ~1950 and display synchronous Pb enrichment processes since the 1950s, implying the start of widespread atmospheric Pb pollution in China. This corresponded well with the beginning of socio-economic development after the establishment of the People's Republic of China. However, owing to the Chinese Cultural Revolution, a roughly unchanged atmospheric Pb status was found in the 1960-70s except on the Qinghai-Tibetan Plateau, where atmospheric Pb still increased gradually caused by long-range atmospheric transport of pollutants from southwest Asia. In ~1980-2000, atmospheric Pb experienced the greatest increase, resulting from rapid development of extensive economy after the Reform and Openingup in 1978. After ~2000, atmospheric Pb generally stopped increasing due to the phasing out of leaded gasoline, but it remained high, with the highest in Southwest China, medium in Northeast China, central North China and the Qinghai-Tibetan Plateau, and the lowest in the southeast Mongolia Plateau and West China. This study reveals spatio-temporal variations of atmospheric Pb in inland China under the influence of recent human activities, providing an important supplement for understanding global Pb pollution in the Anthropocene.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Spatiotemporal trends of atmospheric Pb over the last century across inland China

Wan

Yang

Jin

et al. 2020

Science of The Total Environment

View full text Add to dashboard Cite

show abstract

“…In recent years, such kind investigations have been carried out in many lakes from relatively remote areas of China, such as the Tibetan Plateau, West China, the Yungui Plateau (e.g. Bing et al, 2016;Jin et al, 2010;Li et al, 2017;Lin et al, 2018;Wan et al, 2016;Yang et al, 2010;Zeng et al, 2014). These investigations provide valuable data for understanding long-term trends and background values of atmospheric heavy metals in China.…”

Section: Introductionmentioning

confidence: 99%

One-century sediment records of heavy metal pollution on the southeast Mongolian Plateau: Implications for air pollution trend in China

et al. 2019

View full text Add to dashboard Cite

“…The hot spring water, lignite, and sulphurzinc mines in the Yangzonghai area contain high levels of arsenic. Therefore, the mass ratio of As in the sediments near the hot springs, thermal power plants, coal mines and the phosphate fertilizer plant on the north bank of Yangzonghai is relatively high [5] ，This is similar to the source of Erhai sediments [15] ， The anthropogenic emissions of Cd, Pb, and Zn in Erhai Lake sediments mainly come from atmospheric sources emitted by mining and smelting [16,17] 。 Since there are no companies involved in heavy metal copper (Cu) in the Yangzonghai area, the distribution characteristics have nothing to do with the areas where human activities are intensive. It is speculated that it is produced by geochemical processes such as rock weathering.…”

Section: Discussionmentioning

confidence: 99%

Ecological Risk Assessment of Typical Plateau Lakes

Yuyadong

Yankun²

2021

E3S Web Conf.

View full text Add to dashboard Cite

Plateau lakes have significant ecological value. With economic development, lake pollution and ecological degradation have become increasingly prominent. There are many ecological risk assessment methods. This article combines four different ecological risk assessment methods including single-factor pollution index, geological accumulation index method, potential risk index method, and pollution load index method to analyze the heavy metal pollution in Yangzong seabed mud as comprehensively as possible. It shows that the results obtained by different ecological risk assessment methods are slightly different. The overall trends of the geological pollution index and the single-factor pollution index are similar. In terms of time, except for the two elements of mercury and cadmium, the contents of other heavy metals in 2019 are lower than in 2018, indicating that heavy metal pollution has decreased in 2019; from the perspective of spatial distribution, In 2018, the overall pollution level on the south side of Yangzonghai was higher than that in the central and northern regions of Yangzonghai . On the whole, whether it is the potential risk index or the appropriate pollution load index, the pollution level on the south side of Yangzonghai is higher than that in the central and northern areas of Yangzonghai, and the northern area has the least pollution.

show abstract

Historical variations of atmospheric trace metal pollution in Southwest China: Reconstruction from a 150-year lacustrine sediment record in the Erhai Lake

Cited by 43 publications

References 40 publications

Spatiotemporal trends of atmospheric Pb over the last century across inland China

Spatiotemporal trends of atmospheric Pb over the last century across inland China

One-century sediment records of heavy metal pollution on the southeast Mongolian Plateau: Implications for air pollution trend in China

Ecological Risk Assessment of Typical Plateau Lakes

Contact Info

Product

Resources

About