Short- and long-term transports of heavy metals through earthen liners: physical and numerical modeling

2022 ◽  
Vol 81 (1) ◽  
Author(s):  
Lee Li Yong ◽  
Vivi Anggraini ◽  
Mohd. Raihan Taha ◽  
Mavinakere Eshwaraiah Raghunandan
Keyword(s):  
Heavy Metals ◽  
Numerical Modeling ◽  
Short And Long Term

scholarly journals Air Quality during New Year’s Eve: A Biomonitoring Study with Moss

Atmosphere ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 975
Author(s):  
Paweł Świsłowski ◽  
Zbigniew Ziembik ◽  
Małgorzata Rajfur
Keyword(s):  
Heavy Metals ◽  
Air Quality ◽  
Atmospheric Aerosol ◽  
Point Sources ◽  
Accumulation Factor ◽  
Active Biomonitoring ◽  
Aerosol Pollution ◽  
New Year’S Eve ◽  
Short And Long Term

Mosses are one of the best bioindicators in the assessment of atmospheric aerosol pollution by heavy metals. Studies using mosses allow both short- and long-term air quality monitoring. The increasing contamination of the environment (including air) is causing a search for new, cheap and effective methods of monitoring its condition. Once such method is the use of mosses in active biomonitoring. The aim of the study was to assess the atmospheric aerosol pollution with selected heavy metals (Ni, Cu, Zn, Cd, Hg and Pb) from the smoke of fireworks used during New Year’s Eve in the years 2019/2020 and 2020/2021. In studies a biomonitoring moss-bag method with moss Pleurozium schreberi (Willd. ex Brid.) Mitt. genus Pleurozium was used. The research was conducted in the town Prószków (5 km in south direction from Opole, opolskie voivodship, Poland). The moss was exposed 14 days before 31 December (from 17 to 30 of December), on New Year’s Eve (31 December and 1 January) and 2 weeks after the New Year (from 2–15 January). Higher concentrations of analysed elements were determined in samples exposed during New Year’s Eve. Increases in concentrations were demonstrated by analysis of the Relative Accumulation Factor (RAF). The results indicate that the use of fireworks during New Year’s Eve causes an increase in air pollution with heavy metals. In addition, it was shown that the COVID-19 induced restrictions during New Year’s Eve 2020 resulted in a reduction of heavy metal content in moss samples and thus in lower atmospheric aerosol pollution with these analytes. The study confirmed moss usefulness in monitoring of atmospheric aerosol pollution from point sources.

scholarly journals NUMERICAL MODELING OF SHORT AND LONG TERM WAVES AND SURGES BY HURRICANE IRMA AND MARIA IN US VIRGIN ISLANDS

2018 ◽  
pp. 59
Author(s):  
Nobuhito Mori ◽  
Takenori Shimozono ◽  
Taro Arikawa ◽  
Daisuke Inazu ◽  
Tomoya Shimura ◽  
...  
Keyword(s):  
Numerical Modeling ◽  
Survey Data ◽  
Rare Event ◽  
Virgin Islands ◽  
Us Virgin Islands ◽  
Caribbean Islands ◽  
Short And Long Term ◽  
The Caribbean ◽  
Hurricane Irma

Two powerful hurricanes successively passed close to US Virgin Islands in September 2017. Hurricane Irma developed into CAT5 with the lowest pressure around 914 hPa on 5th of September and passed north of USVI. Sequentially, CAT5 Hurricane Maria followed the similar track, but passed south of USVI. Two CAT5 hurricanes gave devastated damage along the Caribbean Islands. It is a rare event having two CAT5 with similar tracks within two weeks. This study presents hindcasts of waves and storm surge for the two hurricanes and discusses coastal damages with our survey data targeting on USVI.

Short- and Long-Term Influences of Heavy Metals on Anionic Drug Efflux from Renal Proximal Tubule

2002 ◽  
Vol 301 (2) ◽  
pp. 578-585 ◽  
Author(s):  
Sylvie A. Terlouw ◽  
Claudia Graeff ◽  
Pascal H. E. Smeets ◽  
Gert Fricker ◽  
Frans G. M. Russel ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Proximal Tubule ◽  
Renal Proximal Tubule ◽  
Drug Efflux ◽  
Short And Long Term

scholarly journals DETEKSI FORMALIN DAN LOGAM BERAT PADA IKAN SEGAR DI PASAR TRADISIONAL KOTA KUPANG

Jurnal Kimia ◽  
2020 ◽  
pp. 147
Author(s):  
A. T. Lema ◽  
J. M. Jacob
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Content ◽  
Quantitative Detection ◽  
Fish Products ◽  
Fresh Fish ◽  
Fish Market ◽  
Qualitative Detection ◽  
Short And Long Term

Nowadays, the use of formalin as a preservative in fish is often found in society. Besides, the consumption of fresh fish products containing heavy metals will potentially cause various diseases both short and long-term. The aims of this study were to assess the knowledge of society about formalin, detect the presence of formalin, and analyze the heavy metal content of Pb, Cd, and Hg in Yellow striped fish, Tuna and Mackerel fish. The qualitative detection was done using Schiff reagents, while the quantitative detection was done by using the Spectrophotometry based on the reaction of formaldehyde and Nash reagents. The results showed that 50 percent of society did not know about the use of formaldehyde and its characteristics in fish. The Qualitative testing on 9 samples found that 2 samples contained positive formalin, while 7 samples were negative. The quantitative test showed that the highest formalin content was found in Tuna and Mackerel fish with concentration of 3.36 ppm, and 1.26 ppm, respectively. Also, mercury was found as the highest concentration in fish roughly 1 to 1.60 ppm for those samples from three different markets.                                                                                                                                                 Keywords: formalin, heavy metal, fresh fish, market, Kupang city

scholarly journals Gendered dimensions of environmental health, contaminants and global change in Nunavik, Canada

2007 ◽  
Vol 30 (1) ◽  
pp. 31-49 ◽  
Author(s):  
Joanna Kafarowski
Keyword(s):  
Heavy Metals ◽  
Global Change ◽  
Environmental Health ◽  
Indigenous Peoples ◽  
Health Policies ◽  
Natural Environments ◽  
Circumpolar North ◽  
Short And Long Term ◽  
Justice Studies

Abstract As has been well-documented in the scholarly literature over the last two decades, contaminants pose a potentially significant threat to the short and long-term health of Arctic human and natural environments and raise questions of social and environmental justice. Studies link contaminants such as heavy metals, persistent organic pollutants and radionuclides with the use of traditional country foods by Indigenous peoples including the Inuit. Adversely impacting Inuit communities in a myriad of ways, contaminants represent one manifestation of global change across the circumpolar North. Focusing on the community of Inukjuak, Nunavik (Northern Québec), Canada, this paper investigates the roles of Inuit women and men vis-à-vis participation in hunting activities and the identification of contaminants, and demonstrates how women and men construct the lead contaminant issue differently. Additionally, the paper explores why including the perspectives of both is critical to the development of effective environmental health policies, programs and strategies in response to these contaminants.

scholarly journals Complementary Methods to Improve the Depuration of Bivalves: A Review

Foods ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 129 ◽  
Author(s):  
Antía Martinez-Albores ◽  
Aroa Lopez-Santamarina ◽  
José Antonio Rodriguez ◽  
Israel Samuel Ibarra ◽  
Alicia del Carmen Mondragón ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Pathogenic Bacteria ◽  
Uv Light ◽  
Microbiological Quality ◽  
Industrial Applications ◽  
Process Efficiency ◽  
Industrial Processing ◽  
Short And Long Term

Bivalves are filter feeders that can accumulate and concentrate waterborne contaminants present in the water in which they live. Biotoxins, pathogenic bacteria, viruses, and heavy metals present in the aquaculture environment constitute the main hazards for human health. The most common method employed for combating waterborne pollutants in bivalves is depuration with purified seawater. Although this method is effective at increasing the microbiological quality of bivalves, in most cases, it is ineffective at eliminating other risks, such as, for example, viruses or heavy metals. Biological (bacteriocins and bacteriophages), physical (UV light, ozone, and gamma-irradiation), chemical (metallothioneins and chitosan), and other industrial processing methods have been found to be useful for eliminating some contaminants from seawater. The aim of this work was to provide a review of academic articles concerning the use of treatments complementary to conventional depuration, aiming to improve depuration process efficiency by reducing depuration times and decreasing the levels of the most difficult-to-erase contaminants. We conclude that there are different lab-tested strategies that can reduce depuration times and increase the food safety of bivalve produce, with possible short- and long-term industrial applications that could improve the competitivity of the aquaculture industry.

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