干旱区生态环境知识资源中心(Arid): Dredging impacts on the toxicity and development of sediment quality values in a semi-arid region (Ceara state, NE Brazil)

Arid

DOI	10.1016/j.envres.2020.110525
	Dredging impacts on the toxicity and development of sediment quality values in a semi-arid region (Ceara state, NE Brazil)
	Moreira, Lucas Buruaem; Castro, Italo Braga; Fillmann, Gilberto; Peres, Tiago Farias; Cavalcante Belmino, Ingra Kellen; Sasaki, Silvio Tarou; Taniguchi, Satie; Bicego, Marcia Caruso; Marins, Rozane Valente; de Lacerda, Luiz Drude; Costa-Lotufo, Leticia Veras; de Souza Abessa, Denis Moledo
通讯作者	Moreira, LB (corresponding author), NEPEA UNESP, Nucleo Estudos Poluicao & Ecotoxicol Aquat, Pca Infante D Henrique S-N, BR-11330900 Sao Vicente, SP, Brazil.
来源期刊	ENVIRONMENTAL RESEARCH
ISSN	0013-9351
EISSN	1096-0953
出版年	2021
卷号	193
英文摘要	Sediment dredging impacts coastal environments by promoting the resuspension of fine particles and remobilization of contaminants that may trigger toxic effects. In this study, we evaluated the sediment quality in harbor areas of Mucuripe bay, a semi-arid ecosystem located in Ceara state (Brazil), which is subject to dredging activities. A sampling survey was conducted right after dredging operations and data compared to another survey performed prior dredging. Sediments were analyzed for fine particles, organic carbon, nutrients, metals, hydrocarbons, and tributyltin (TBT). Toxicity of whole-sediment and liquid phase exposures were also determined. The concentrations of Cd, Cr, Cu, and Zn decreased after dredging, which was confirmed by the geoaccumulation index. Levels of TBT dropped while phosphorus, aliphatic and polycyclic aromatic hydrocarbons increased. Toxic effects persisted, indicating a post-dredging recontamination combined with other sources such as urban runoff, wastewater discharges, harbor activities, and antifouling particles. Data from Mucuripe and Pecem harbors were compiled and site-specific sediment quality values (SQVs) were developed by using multivariate methods. The threshold values proposed by our study were lower and more effective to predict toxicity compared to international guidelines, indicating levels of contamination for this tropical region in which toxic effects may occur. Considering the large geographic area with different sediment characteristics of the Brazilian coast, this study represents a significant contribution to sediment toxicity assessment of dredging activities in semi-arid environments.
英文关键词	Dredge management Dredged material Risk assessment Sediment quality guidelines Sediment toxicity
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000613937500010
WOS关键词	POLYCYCLIC AROMATIC-HYDROCARBONS ; SUSPENDED PARTICULATE MATTER ; CONTINENTAL-SHELF ; CONTAMINATED SEDIMENTS ; JAGUARIBE RIVER ; SAO-PAULO ; MARINE ; COASTAL ; ESTUARY ; GUIDELINES
WOS类目	Environmental Sciences ; Public, Environmental & Occupational Health
WOS研究方向	Environmental Sciences & Ecology ; Public, Environmental & Occupational Health
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350144
作者单位	[Moreira, Lucas Buruaem; Peres, Tiago Farias; Cavalcante Belmino, Ingra Kellen; Marins, Rozane Valente; de Lacerda, Luiz Drude; Costa-Lotufo, Leticia Veras] Univ Fed Ceara, Inst Ciencias Mar, Fortaleza, Ceara, Brazil; [Moreira, Lucas Buruaem; de Souza Abessa, Denis Moledo] UNESP, Nucleo Estudos Poluicao & Ecotoxicol Aquat, Sao Vicente, SP, Brazil; [Castro, Italo Braga] Univ Fed Sao Paulo, Inst Mar, Santos, SP, Brazil; [Fillmann, Gilberto] Univ Fed Rio Grande, Inst Oceanog, Rio Grande, RS, Brazil; [Sasaki, Silvio Tarou; Taniguchi, Satie; Bicego, Marcia Caruso] Univ Sao Paulo, Inst Oceanog, Sao Paulo, SP, Brazil
推荐引用方式 GB/T 7714	Moreira, Lucas Buruaem,Castro, Italo Braga,Fillmann, Gilberto,et al. Dredging impacts on the toxicity and development of sediment quality values in a semi-arid region (Ceara state, NE Brazil)[J],2021,193.
APA	Moreira, Lucas Buruaem.,Castro, Italo Braga.,Fillmann, Gilberto.,Peres, Tiago Farias.,Cavalcante Belmino, Ingra Kellen.,...&de Souza Abessa, Denis Moledo.(2021).Dredging impacts on the toxicity and development of sediment quality values in a semi-arid region (Ceara state, NE Brazil).ENVIRONMENTAL RESEARCH,193.
MLA	Moreira, Lucas Buruaem,et al."Dredging impacts on the toxicity and development of sediment quality values in a semi-arid region (Ceara state, NE Brazil)".ENVIRONMENTAL RESEARCH 193(2021).