Research Publications (Food Safety)

The article presents the results of the study of sulfur-containing gases (carbon disulfide, CS2, and dimethyl sulfide, C2H6S) in the air above the sulfide tailings and in the soils in Komsomolsk settlement. Concentrations of CS2 (gas of the second hazard class) and C2H6S (gas of the fourth hazard class) in the air above the tailings exceeded the average maximum permissible on-time concentration (MPCot) by 20 times and 9 times, accordingly.

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Various antimicrobial agents are used in the poultry industry to treat microbial infections and prevent disease or as growth promoters. As a result, poultry litter (PL) can contain antibiotic residues (AR), antibiotic-resistant bacteria (ARB), and antibiotic resistance genes. Still, PL is used in many countries as a fertilizer and feed supplement for cattle.

Mangrove sediment acts as a natural accumulator of potentially toxic metals (PTMs). Here, we have investigated the efficiency of mangrove species, e.g., Sonneratia caseolaris and Avicennia officinalis phytoremediation potential in a globally significant vulnerable river. The lower pH and anoxic conditions facilitate the elevated accumulation of PTMs in river Hooghly.

This study aims to assess the metallic contamination of soils and water resources in the environment of the Ouixane mining area (North East Morocco). Six metallic elements (Fe, Cu, Pb, Zn, Ni, and Cd) were analyzed by ICP-AES and ICP-MS. To evaluate the contamination of the soils, three contamination assessment methods were used as follows: enrichment factor (EF), pollution index (PI), and geo-accumulation index (Igeo).

Investigations of the impact of heavy metals on microbial community structure are crucial for bioremediation of the contaminated sites. To this end, high-throughput 16S rRNA sequencing was performed to assess the variations of bacterial communities in 6 heavy metal-contaminated soils sampled from Liujiaping (LJP) and Shanping (SP) lead–zinc tailings situated in northwestern China.

The presence of arsenic (As) and lead (Pb) in water above tolerable levels is a global concern, as both elements are extremely toxic and can compromise the health of millions of people. In this study, we evaluated biochars pyrolyzed at 350 (BC350) and 750 °C (BC750) and then modified with ferric chloride (FeCl3) to remove As and Pb from water samples contaminated by mining activity. The use of FeCl3-modified biochar was an efficient strategy to remove As and Pb from water.

Golinga reservoir provides water for drinking and domestic and agricultural activities for its surrounding communities. However, competitive demand and multiple-use necessitated a study into the influence of the multipurpose use on the water quality and subsequent health risks. The 6-month research employed observations and water sampling to assess the impact. Empirical orthogonal function, analysis of variance, and variance–covariance were run to interpret the obtained data.

Pomelo peel has been reported as an efficient biosorbent for lead removal from wastewater treatment processes. The current work aimed to examine the amounts of lead desorption from the biosorbent waste in amended soil samples for up to 3 months (10% w/w). The desorption experiments were performed under two widely used techniques, single extraction and column leaching. Lead desorption was evaluated using two common eluents, which were 0.01-M Ca(NO3)2 and 0.04-M EDTA solutions.

The study area lies in a semi-arid setting of Brazil that comprises some of the largest scheelite mines in the country, but information regarding the mining impacts on the soil quality are relatively scarce. Here, we studied the changes in the soil physical and chemical characteristics caused by the scheelite mining activities in northeast Brazil, including the impacts on heavy metal concentrations in soils.

Polycyclic aromatic hydrocarbons (PAHs), the nitrogen-containing analogues (N-PAHs) and lead 210 (210Pb) were measured in 2-cm interval core segments from Bodo Creek to evaluate impact of oil pollution in the waterbody. PAHs and N-PAHs were measured by gas chromatography analysis with mass spectrometry detection, and 210Pb activity concentration was determined by alpha spectrometry measurement.

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Agriculture is the largest consumer of water, particularly in arid and semi-arid regions, so identifying and managing surface water quality in these areas is critical to preserving water resources and ensuring sustainable agriculture.

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Soil contamination with heavy metals causes heavy environmental problems, in particular toxic effects on plants as well as on animals and humans. This article analyzes the effects of copper, a potentially toxic metal and abundant contaminant, on soil bacteria. Gram-positive soil bacteria of the Bacillus and Arthrobacter species, isolated from heavy metal contaminated areas, have been investigated as regards copper resistance.

Nearly 80% of the population in the Colombo district fulfill their major requirement from the Kelani river. Recent studies are interoperating: most groundwater and surface water in Sri Lanka are contaminated with waterborne pathogens and antibiotics.

This study was aimed at studying the effect of heavy metals and arsenic on the survival and biofilm formation of some saprotrophic microorganisms: Bacillus megaterium var. phosphaticum, Bacillus mucilaginosus, Pectobacterium carotovorum, and Escherichia coli. As a source of heavy metals and arsenic, we used aqueous solutions of NaAsO2, Cd(CH3COO)2, and Pb(NO3)2 (2.5, 25, 250 mg L−1).

Magnetic graphene oxide (MGO) is an inorganic composite material composed of graphene oxide (GO) that has the characteristics of GO and magnetic material. The application of MGO in water treatment can effectively solve problems such as difficult recovery of the adsorbed GO from liquid, low efficiency, and high treatment cost, which are regarded as having important academic research value.

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Remediation of contaminated soil and sediment is important for improving the eco-environmental quality. Electro-kinetic remediation (EKR) is an environmentally friendly technology to migrate and remove pollutants from the soil and sediment matrix. This paper analyses the mechanism and performance of EKR of heavy metals, organic pollutants, and compound pollutants.

In this study, leaf and soil samples were used as bio-monitors for different alkali and heavy metals at six different locations in Kyiv city. Using x–y plots of the inductively coupled plasma optical emission spectroscopy (ICP-OES) data measured the discrepancy level in elemental composition between the different investigated areas; the correlation between the concentrations in tree leaves and the samples from the surrounding soils were investigated.

This review presents important information about general aspects of the mining process as a source of environmental pollution, economic and health impact, microorganisms involved in the microenvironments resulting from ore exploitation, and resistance mechanisms to As and Zn, as a global vision of topics of interest to researchers or students involved in this field.

Water is principally intended for direct consumption and for the production of food and beverages. It is also a valuable raw material in the industry. Despite the use of multi-stage treatment processes, the quality of drinking water may still be a concern in some countries due to the presence of toxic pollutants, often challenging to remove through the conventional treatment process.

The Animas River provides irrigation water in northwestern New Mexico and the Navajo Nation. Concerns regarding the river water quality arose on August 5, 2015, when approximately 11.35 million liters of heavy metal contaminated water was accidentally released from the Gold King Mine into the Animas River.