Occurrence and Contamination of Rare Earth Elements in Urban Mangroves of Shenzhen, South China
نویسندگان
چکیده
Mangroves acted as sinks of terrestrial pollutants, but the occurrence and contamination rare earth elements (REEs) in urban mangroves lacked systematic evaluation. In rapidly developing Shenzhen, China, four typical were selected to determine REEs mangroves, including Baguang mangrove (BGM) Futian (FTM) featured with ecological preserve central business district, respectively; Xixiang (XXM) Shajing (SJM) both industry district. The mean concentrations total (TREEs) sediment (0–25 cm depth, μg g−1) SJM (465.28) > FTM (411.25) XXM (342.76) BGM (118.63), Ce be dominant element. depositions significantly affected by sulfur accumulation fine sediment, silt clay fractions. main fractionation pattern was enrichment light (LREEs) loss heavy (HREEs). Geo−accumulation index, modified degree contamination, pollution load potential risk index showed moderately contaminated level FTM, followed SJM, XXM, uncontaminated BGM. This study provided important information on for prevention remediation future.
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ژورنال
عنوان ژورنال: Sustainability
سال: 2021
ISSN: ['2071-1050']
DOI: https://doi.org/10.3390/su13052503