Trace metals and metalloids in peri-urban soil and foliage across geologic materials, ecosystems, and development intensities in Southern California

2021 ◽  
Author(s):  
Trevor J. Mackowiak ◽  
Ivan C. Mischenko ◽  
Mark J. Butler ◽  
Justin B. Richardson
Keyword(s):  
Trace Metals ◽  
Urban Soil ◽  
Southern California ◽  
Metals And Metalloids ◽  
Geologic Materials

Induction-Coupled Plasma Determination of Ag, Au, Bi, Cd, Cu, Pb, and Zn in Geologic Materials Using a Selective Extraction Technique—Preliminary Investigation

1979 ◽  
Vol 33 (5) ◽  
pp. 456-460 ◽  
Author(s):  
J. M. Motooka ◽  
E. L. Mosier ◽  
S. J. Sutley ◽  
J. G. Viets
Keyword(s):  
Trace Metals ◽  
Organic Phase ◽  
Inductively Coupled Plasma ◽  
Matrix Effects ◽  
Preliminary Investigation ◽  
Selective Extraction ◽  
Major Elements ◽  
Extraction Technique ◽  
Operating Characteristics ◽  
Geologic Materials

The expanding need for multielement analysis at submicrogram levels in geologic materials has prompted an increased interest in inductively coupled plasma spectrometry. No other analytical procedure simultaneously exhibits, to the same degree, the operating characteristics of excellent precision and accuracy, low limits of detection, dynamic concentration ranges in addition to eliminating or at least reducing, interelemental and matrix effects. The experimental and operating parameters are described for the analyses of trace metals found in the organic phase following a rapid and efficient extraction technique. Direct spectral interferences, matrix and interelemental effects caused by major elements in geologic materials are effectively eliminated and sensitivity is increased by concentrating the trace metals in the organic phase. Aluminum, calcium, iron, potassium, magnesium, manganese, and sodium are among the major elements eliminated; and trace elements (Ag, Au, Bi, Cd, Cu, Pb, and Zn) critical to a mineral evaluation, some of which have insufficient detection limits by plasma analyses, are enhanced to a more precise detection level.

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.

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

scholarly journals Non-proportional bioaccumulation of trace metals and metalloids in the planktonic food web of two Singapore coastal marine inlets with contrasting water residence times

2016 ◽  
Vol 560-561 ◽  
pp. 284-294 ◽  
Author(s):  
Albert Calbet ◽  
Claire Schmoker ◽  
Francesca Russo ◽  
Aurore Trottet ◽  
Mohamed-Sofiane Mahjoub ◽  
...  
Keyword(s):  
Trace Metals ◽  
Food Web ◽  
Residence Times ◽  
Metals And Metalloids ◽  
Planktonic Food ◽  
Coastal Marine
Sign in / Sign up

Export Citation Format

Share Document