| Autor: |
Xin, Ni, Guangming, Zhao, Siyuan, Ye, Guangxue, Li, Hongming, Yuan, Lei, He, Dapeng, Su, Xigui, Ding, Liujuan, Xie, Shaofeng, Pei, Edward A, Laws |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Environmental Science and Pollution Research. 30:18843-18860 |
| ISSN: |
1614-7499 |
| DOI: |
10.1007/s11356-022-23295-z |
| Popis: |
Studies of heavy metal pollution are essential for the protection of coastal environments. In this study, positive matrix factorization (PMF) and a GeoDetector model were used to evaluate the sources of heavy metal contamination and associated ecological risks along the Yancheng Coastal Wetland. The distribution of heavy metals was shown to be greatly affected by clay content, except for Cr in shoal. Components from 6.5 to 9φ have the strongest ability to absorb heavy metals, where the effects of Cd and Zn sequestration in the wetlands were most apparent. The abilities of various wetland environments to sequester heavy metals were shown to be Spartina alterniflora wetland woodland Phragmites australis wetland aquaculture pond shoal paddy meadow dry land. The sources of the heavy metals included parent soil material (59%), agriculture (15%), and industrial pollutants (26%). According to the single-factor pollution index, there was no evidence of pollution except Cr and Pb. In general, the heavy metal pollution was insignificant. The order of pollution loading index was shoal paddy field dry land Spartina Alterniflora wetland aquaculture ponds woodland meadow Phragmites australis wetland. The ecological harm of heavy metal exposure was slight except for Cd and Hg, where vehicle emissions appeared to be the main cause of heavy metal pollution. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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