Spreading of trace metals and metalloids pollution in lake sediments over the Pyrénées

2003 ◽  
Vol 107 ◽  
pp. 249-253 ◽  
Author(s):  
L. Camarero
Keyword(s):  
Trace Metals ◽  
Lake Sediments ◽  
Metals And Metalloids

Mineralogy and geochemistry of the Ngaoundaba Crater Lake sediments, northern Cameroon: implications for provenance and trace metals status

2021 ◽  
Author(s):  
Armel Zacharie Ekoa Bessa ◽  
John S. Armstrong-Altrin ◽  
Gentry Calistus Fuh ◽  
Thierry Bineli Betsi ◽  
Tebogo Kelepile ◽  
...  
Keyword(s):  
Trace Metals ◽  
Lake Sediments ◽  
Crater Lake ◽  
Northern Cameroon

scholarly journals Occurrence and risk assessment of trace metals and metalloids in sediments and benthic invertebrates from Dianshan Lake, China

2017 ◽  
Vol 24 (17) ◽  
pp. 14847-14856 ◽  
Author(s):  
Yan Wu ◽  
Yihui Zhou ◽  
Yanling Qiu ◽  
Da Chen ◽  
Zhiliang Zhu ◽  
...  
Keyword(s):  
Trace Metals ◽  
Health Risks ◽  
Benthic Invertebrates ◽  
Hazard Index ◽  
Accumulation Factor ◽  
Food Protein ◽  
Potential Health ◽  
Metals And Metalloids ◽  
Local Populations ◽  
Dianshan Lake

Abstract The present study measured concentrations of Cr, Ni, Cu, Zn, As, Cd, Sb, and Pb in surface sediments and two benthic invertebrate species (Anodonta woodiana and Bellamya aeruginosa) collected from Dianshan Lake, located in the Yangtze River Delta. The Dianshan Lake acts as one of the most important drinking water sources to Shanghai, the biggest city in China. Concentrations of trace metals and metalloids ranged from 0.04 mg/kg for Cd to 288.0 mg/kg for Zn. Substantial bioaccumulation in invertebrates was observed for Zn and Cu based on the biota-sediment accumulation factor (BSAF) measurements. The results revealed that concentrations of metals and metalloids in sediments from Dianshan Lake were at the lower end of the range of levels found in other regions of China. The assessment of three significantly inter-related evaluation indices, including the geo-accumulation Index (Igeo), potential ecological risk factor (Eri), and mean probable effect concentration quotients (Qm-PEC), suggested that sediment-associated trace elements exhibited no considerable ecological risks in the studied watershed. However, the target hazard quotient and hazard index analysis suggested that selected elements (particularly As) accumulation in edible tissues of benthic invertebrates could pose potential health risks to local populations, especially fishermen. Given that wild aquatic organisms (e.g., fish and bivalves) constitute the diet of local populations as popular food/protein choices, further investigations are needed to better elucidate human health risks from metal and metalloid exposure via edible freshwater organisms.

Trace metals and nutrients in lake sediments in the Province of Bali, Indonesia: a baseline assessment linking potential sources

2021 ◽  
Vol 72 (1) ◽  
pp. 66
Author(s):  
Irdhawati ◽  
Manuntun Manuruang ◽  
Amanda Reichelt-Brushett
Keyword(s):  
Trace Metals ◽  
Solid Waste ◽  
Lake Sediments ◽  
River Estuary ◽  
Agricultural Runoff ◽  
Small Scale ◽  
Protection Measures ◽  
Natural Beauty ◽  
Guideline Values ◽  
Contaminant Sources

Bali, Indonesia, receives over 6 million tourists annually, placing demand on resources and infrastructure that competes with expectations of natural beauty. Strongly linked to tourism are highly productive small-scale crafts industries and intensive small-scale agriculture and aquaculture production. Concentrations of nutrients, trace metals and metalloids were determined in soils from various land uses and solid-waste containment areas associated with small-scale industries, along with sediments from Lake Beratan, Lake Tamblingan, Lake Buyan, Lake Batur and the Badung River estuary. Soil associated with laboratory waste storage, and some sediments, exceeded guideline values for mercury or copper. Concentrations of other metals in soils and sediments were consistently below guidelines values, except zinc in solid waste collected from batik production (i.e. fabric-dyeing operations). Waste from batik production contained elevated concentrations of trace metals and nutrients (phosphorus and potassium), but replicates were highly variable. Lake sediments were enriched with phosphorus and nitrogen, likely from agricultural runoff. This important baseline information highlights the value of lake-protection measures in place, identifies risks to environmental health and provides focus for improving the management of contaminant sources to prevent further impacts.

scholarly journals Trace metals and metalloids and Ga/Al ratios in grey shale weathering profiles along a climate gradient and in batch reactors

Geoderma ◽  
2022 ◽  
Vol 405 ◽  
pp. 115431
Author(s):  
Justin B. Richardson ◽  
Ivan C. Mischenko ◽  
Trevor J. Mackowiak ◽  
Nicolas Perdrial
Keyword(s):  
Trace Metals ◽  
Batch Reactors ◽  
Metals And Metalloids ◽  
Climate Gradient
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