Development of a simulated lung fluid leaching method to assess the release of potentially toxic elements from volcanic ash

Chemosphere ◽  
2021 ◽  
pp. 130303
Author(s):  
Ines TOMAŠEK ◽  
David E. DAMBY ◽  
Carol STEWART ◽  
Claire J. HORWELL ◽  
Geoff PLUMLEE ◽  
...  
Keyword(s):  
Toxic Elements ◽  
Volcanic Ash ◽  
Potentially Toxic Elements ◽  
Lung Fluid ◽  
Simulated Lung Fluid

scholarly journals Size Distribution, Bioaccessibility and Health Risks of Indoor/Outdoor Airborne Toxic Elements Collected from School Office Room

Atmosphere ◽  
2018 ◽  
Vol 9 (9) ◽  
pp. 340 ◽  
Author(s):  
Zhi-Jie Tang ◽  
Xin Hu ◽  
Jun-Qin Qiao ◽  
Hong-Zhen Lian
Keyword(s):  
Size Distribution ◽  
Health Risks ◽  
Toxic Elements ◽  
Inhalation Exposure ◽  
Potential Health ◽  
Lung Fluid ◽  
Mass Size ◽  
Office Rooms ◽  
Simulated Lung Fluid ◽  
Indoor And Outdoor

20 sets of indoor and outdoor size-segregated aerosol (SSA) samples (180 foils) were collected synchronously by using two 8 Stage Non-Viable Cascade Impactor from an office room in the central region of the megacity-Nanjing, China in winter and spring in 2016. The mass size distribution of SSAs was bimodal for outdoor SSAs and unimodal for indoor in both winter and spring. The crustal elements, such as K, Ca, Mg and Fe, were mainly distributed in the coarse fractions of SSAs while toxic elements such as As, Cd, Pb and Sb were enriched more in the fine fractions in both winter and spring. Moreover, indoor/outdoor (I/O) concentration ratios of SSAs and inorganic elements indicated the penetration of outdoor fine fractions of SSAs into indoor air. As, Pb, V and Mn showed higher inhalation bioaccessibility extracted by the artificial lysosomal fluid (ALF); while V, As, Sr and Cd showed higher inhalation bioaccessibility using the simulated lung fluid (SLF), suggesting differences in elemental inhalation bioaccessibility between ALF and SLF extraction. There were similar potential carcinogenic and accumulative non-carcinogenic risks via inhalation exposure to indoor and outdoor particle-bound toxic elements based on their bioaccessible concentrations. Therefore, the potential health risks to human posed by toxic elements in office rooms cannot be neglected via inhalation exposure of the fine airborne particles.

scholarly journals Risk assessment of trace elements in airborne particulate matter deposited on air filters using solid sampling ETV-ICPOES to measure total concentrations and leaching with simulated saliva, gastric juice and lung fluid to estimate bio-accessibility

2018 ◽  
Vol 33 (9) ◽  
pp. 1486-1492 ◽  
Author(s):  
Guilherme L. Scheffler ◽  
Nausheen W. Sadiq ◽  
Dirce Pozebon ◽  
Diane Beauchemin
Keyword(s):  
Particulate Matter ◽  
Toxic Elements ◽  
Airborne Particulate Matter ◽  
Potentially Toxic Elements ◽  
Solid Sampling ◽  
Airborne Particulate ◽  
Air Filters ◽  
Lung Fluid ◽  
Total Concentrations

The risk from potentially toxic elements in airborne particulate matter collected on air filters is assessed using a batch in vitro method.

scholarly journals Current Status and Temporal Trend of Potentially Toxic Elements Pollution in Agricultural Soil in the Yangtze River Delta Region: A Meta-Analysis

2021 ◽  
Vol 18 (3) ◽  
pp. 1033
Author(s):  
Shufeng She ◽  
Bifeng Hu ◽  
Xianglin Zhang ◽  
Shuai Shao ◽  
Yefeng Jiang ◽  
...  
Keyword(s):  
Yangtze River ◽  
Agricultural Soil ◽  
Toxic Elements ◽  
Temporal Trend ◽  
Meta Analysis ◽  
Yangtze River Delta ◽  
Potentially Toxic Elements ◽  
River Delta ◽  
The Yangtze River ◽  
The Yangtze River Delta

Potentially toxic elements (PTEs) pollution in the agricultural soil of China, especially in developed regions such as the Yangtze River Delta (YRD) in eastern China, has received increasing attention. However, there are few studies on the long-term assessment of soil pollution by PTEs over large regions. Therefore, in this study, a meta-analysis was conducted to evaluate the current state and temporal trend of PTEs pollution in the agricultural land of the Yangtze River Delta. Based on a review of 118 studies published between 1993 and 2020, the average concentrations of Cd, Hg, As, Pb, Cr, Cu, Zn, and Ni were found to be 0.25 mg kg−1, 0.14 mg kg−1, 8.14 mg kg−1, 32.32 mg kg−1, 68.84 mg kg−1, 32.58 mg kg−1, 92.35 mg kg−1, and 29.30 mg kg−1, respectively. Among these elements, only Cd and Hg showed significant accumulation compared with their background values. The eastern Yangtze River Delta showed a relatively high ecological risk due to intensive industrial activities. The contents of Cd, Pb, and Zn in soil showed an increasing trend from 1993 to 2000 and then showed a decreasing trend. The results obtained from this study will provide guidance for the prevention and control of soil pollution in the Yangtze River Delta.

scholarly journals Dietary exposure to potentially toxic elements through sushi consumption in Catalonia, Spain

2021 ◽  
pp. 112285
Author(s):  
Neus González ◽  
Eudald Correig ◽  
Isa Marmelo ◽  
António Marques ◽  
Rasmus la Cour ◽  
...  
Keyword(s):  
Toxic Elements ◽  
Dietary Exposure ◽  
Potentially Toxic Elements

Purified montmorillonite as a nano-adsorbent of potentially toxic elements from environment: an overview

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Zahra Biglari Quchan Atigh ◽  
Pourya Sardari ◽  
Ebrahim Moghiseh ◽  
Behnam Asgari Lajayer ◽  
Andrew S. Hursthouse
Keyword(s):  
Toxic Elements ◽  
Potentially Toxic Elements ◽  
Nano Adsorbent

scholarly journals Human Health Risk Assessment for Exposure to Potentially Toxic Elements in Polluted Rivers in the Ecuadorian Amazon

Water ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 613
Author(s):  
Samantha Jiménez-Oyola ◽  
Kenny Escobar Segovia ◽  
María-Jesús García-Martínez ◽  
Marcelo Ortega ◽  
David Bolonio ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Cancer Risk ◽  
Health Risk ◽  
Human Health ◽  
Health Risk Assessment ◽  
Toxic Elements ◽  
Human Health Risk ◽  
Potentially Toxic Elements ◽  
Ecuadorian Amazon ◽  
Polluted Rivers

Anthropogenic activities performed in the Ecuadorian Amazon have released potentially toxic elements (PTEs) into the rivers, causing severe environmental pollution and increasing the risk of exposure to the residents of the surrounding areas. This study aims to carry out a human health risk assessment using deterministic and probabilistic methods to estimate the hazard index (HI) and total cancer risk (TCR) related to multi-pathway human exposure to PTEs in polluted rivers. Concentrations of Al, Cd, Cr, Cu, Hg, Ni, Pb, and Zn in surface water and sediment samples from rivers on the Ecuadorian Amazon were considered to assess the potential adverse human health effects. As a result, deterministic and probabilistic estimations of cancer and non-cancer risk through exposure to surface waters and sediments were above the safety limit. A sensitivity analysis identified the concentration of PTEs and the exposure duration (ED) as the two most important variables for probabilistic health risk assessment. The highest risk for receptors was related to exposure to polluted sediments through incidental ingestion and dermal contact routes. According to the deterministic estimation, the human health risk through ingestion of water was above the threshold in specific locations. This study reveals the potential health risk to which the population is exposed. This information can be used as a baseline to develop public strategies to reduce anthropogenic pollution and exposure to PTEs in Ecuadorian Amazon rivers.

Sign in / Sign up

Export Citation Format

Share Document