Article
Engineering, Environmental
Xingyue Sun, Peng Li, Guiling Zheng
Summary: Atmospheric mercury is a highly toxic heavy metal that shows bioaccumulation properties. This study focused on analyzing the distribution of mercury in different cells and subcellular structures of Tillandsia usneoides, a bioindicator for mercury. Results showed that mercury circulated dynamically in the surface and internal structural cells of the leaves, with more accumulation in vacuoles and cell walls as the concentration increased. Hemicellulose was identified as the primary binding component for mercury in the cell wall.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Raquel Baos, Sonia Cabezas, Maria Jose Gonzalez, Begona Jimenez, Miguel Delibes
Summary: Accidents at mines involving stored tailings have caused catastrophic environmental damage, such as the Aznalcollar mine tailings pond dam break in Spain. The study used Eurasian otters as sentinel species to assess the potential impact of toxic spills on river ecosystems and found decreasing levels of trace elements over time, with some rebounds attributed to residual contamination and new inputs from nearby industrial and agricultural activities. The research highlights otters' role as sentinel species for monitoring contaminants and evaluating river ecosystem health.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Tianhao Du, Anna Bogush, Paul Edwards, Peter Stanley, Ana T. Lombardi, Luiza C. Campos
Summary: This study investigated the role of indigenous algae in removing metals from acid mine drainage and found that metals such as Zn, Cu, and Cd can be adsorbed onto and accumulated in the algae, while Pb and Fe are mainly bioaccumulated in the algae. Indigenous algae can serve as a biogeochemical barrier for metal accumulation and can be used as bioindicators for assessing water pollution.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Agriculture, Dairy & Animal Science
Andrea Ariano, Marcello Scivicco, Massimiliano D'Ambola, Salvatore Velotto, Rebecca Andreini, Simone Bertini, Annalisa Zaccaroni, Lorella Severino
Summary: The study aimed to evaluate the presence of non-essential and essential trace elements in freshwater crayfish edible tissues to determine the healthiness of the product and assess the pollution status of the sampling sites. The results indicated that crayfish were safe for human consumption and showed mild contamination of heavy metals in the sampling areas.
Article
Environmental Sciences
Abed Babak Baharvand, Bahareh Lorestani, Maryam Kiani Sadr, Mehrdad Cheraghi, Soheil Sobhanardakani
Summary: The phytoremediation potential of Suaeda maritima for cleaning up contaminated sediments with Cd, Ni and Pb in the Khorkhoran International Wetland was assessed in this study. The results showed that the levels of Cd, Ni and Pb were high in the root and leaf samples of S. maritima, as well as in the water samples.
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
(2023)
Article
Environmental Sciences
Xiawei Jiang, Wenhong Liu, Hao Xu, Xinjie Cui, Junfeng Li, Jurong Chen, Beiwen Zheng
Summary: This study investigated the heavy metal contents, microbial composition, and resistance genes in a copper mine tailing in Dexing Copper Mine, the largest open-pit copper mine in China. The results suggest a possible shaping influence of heavy metals on the microbiome and resistome, providing valuable data for the surveillance and maintenance of the tailing.
ENVIRONMENTAL POLLUTION
(2021)
Review
Engineering, Environmental
Chenyuan Wu, Yuanqing Chao, Longfei Shu, Rongliang Qiu
Summary: Soil protists play crucial functional roles in terrestrial ecosystems, but their interaction with soil pollutants remains poorly understood. This review provides an overview of the current understanding of these interactions and identifies five research gaps. A better understanding of soil pollutant-protist interactions will contribute to the bioremediation and environmental applications of protists in soil.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Nenad M. Zaric, Robert Brodschneider, Walter Goessler
Summary: This study analyzed the elemental composition of individual honey bees for the first time, revealing significant differences in elemental concentrations between hives within the same apiary as well as between different apiaries. The study highlights the importance of sampling a larger number of hives at each location when using honey bees as biomonitors to ensure reliable interpretation of results. Additionally, negative correlations between the dry mass of a bee and concentrations of certain elements suggest potential factors such as honey or nectar content impacting the elemental composition of individual bees.
ENVIRONMENTAL RESEARCH
(2022)
Article
Multidisciplinary Sciences
Beatriz Rito, Diogo Almeida, Carina Coimbra, Diogo Vicente, Romeu Francisco, Rita Branco, Harald Weigand, Paula Vasconcelos Morais
Summary: Bioleaching is an effective method to increase the relative concentration of critical metals in residues. Biostimulation and bioaugmentation approaches can reduce the concentration of interfering components, leading to an increase in certain metals in the treated residue.
SCIENTIFIC REPORTS
(2022)
Article
Environmental Sciences
Sergio E. Espinoza, Ivan A. Quiroz, Carlos R. Magni, Marco A. Yanez, Eduardo E. Martinez
Summary: This study analyzed the nutrients and metals concentrations of the surrounding soils and sclerophyllous vegetation of a tailing at the CODELCO-El Teniente copper mine in Central Chile. The results showed that different plant species have different absorption and utilization of metals, and some plants can grow in environments with high metal content.
WATER AIR AND SOIL POLLUTION
(2022)
Article
Environmental Sciences
Aneena Yesudas, D. Vidyalakshmi, Gopika Sivan, K. Shameem, E. Akhil Prakash, P. Priyaja
Summary: In this study, the bioaccumulation potential of different heavy metals by two sea urchin species was assessed. The results showed that Stomopneustes variolaris had higher bioaccumulation potential than Echinothrix diadema for several heavy metals. Additionally, the concentration of heavy metals decreased in water and sediment during the lockdown period, but showed no significant reduction in the hard parts of the sea urchins.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Gabriela Tomas Jeronimo, Edson Luniere Porto, Marcos Alexandre Bolson, Ezio Sargentini-Junior, Mauricio Laterca Martins, Matheus Gomes da Cruz
Summary: Fish parasites, such as Neoechinorhynchus buttnerae, can accumulate high concentrations of trace metals and serve as bioindicators of environmental contamination. The presence of metals in the parasite was significantly higher than in the host fish Colossoma macropomum, indicating their ability to accumulate metals. The results suggest that the parasite directly influences the concentrations of trace metals in the fish tissues.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Ankita Datta, Nihal Gujre, Debaditya Gupta, Richa Agnihotri, Sudip Mitra
Summary: This study assessed the relationship between soil enzyme activities (SEAs) and heavy metals (HMs) in soils contaminated with municipal solid wastes (MSW) without any amendment. The results showed enhanced activities of some soil enzymes in different types of MSW-contaminated soils, indicating the impact of heavy metals on soil enzyme activities and physicochemical properties. The study emphasized the importance of further research on SEAs for their potential use as bioindicators in various soil bioremediation and quality management practices.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Review
Environmental Sciences
Aleksandra Miloskovic, Vladica Simic
Summary: A review conducted in Serbia evaluated the presence of potentially toxic elements (PTEs) in fish in water ecosystems. The study identified and evaluated 40 relevant studies, covering 28 ecosystems and 108 locations. The most studied river ecosystems were the Danube and the Sava, and the Meduvrsje reservoir was the most studied standing water ecosystem. Several fish species were examined, with catfish, pikeperch, bream, carp, and barbel being the most studied. The findings showed elevated concentrations of PTEs in various fish species from the Danube, Sava, and Velika Morava basin rivers, with mercury being the most commonly detected element exceeding the maximum permitted concentrations (MPCs) in muscle tissue.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Pawel Swislowski, Arkadiusz Nowak, Malgorzata Rajfur
Summary: The study evaluated the physiological condition of Pleurozium schreberi moss species exposed continuously for a year and investigated the effect of exposure time on metal absorption by the moss. It was found that despite long-term exposure to environmental factors and a decrease in chlorophyll content, the moss still exhibited living organism characteristics and can be utilized for long-term environmental monitoring.
ATMOSPHERIC POLLUTION RESEARCH
(2021)
Review
Environmental Sciences
Kai Zhang, Amir Hossein Hamidian, Aleksandra Tubic, Yu Zhang, James K. H. Fang, Chenxi Wu, Paul K. S. Lam
Summary: Plastic waste pollution is a global issue that poses a potential threat to ecosystems and human health, but knowledge on plastic environmental degradation and microplastic formation is still limited. Future research should further study the key factors influencing plastic degradation to predict the fate of plastics in different environments.
ENVIRONMENTAL POLLUTION
(2021)
Review
Environmental Sciences
Nastaran Razeghi, Amir Hossein Hamidian, Chenxi Wu, Yu Zhang, Min Yang
Summary: Microplastics pollution in Iran's ecosystems is mainly studied in aquatic environments, particularly in the Persian Gulf and the Oman Sea. Most studies focus on the presence of microplastics in marine organisms such as fish, as well as in commercial salt and bottled mineral water brands in Iran. Further research is needed, especially in terrestrial and freshwater compartments, to better understand the extent of microplastics pollution.
MARINE POLLUTION BULLETIN
(2021)
Review
Engineering, Chemical
Elnaz Jafari Ozumchelouei, Amir Hossein Hamidian, Yu Zhang, Min Yang
Summary: Anaerobic ammonium oxidation (anammox) is a cost-effective method for nitrogen removal from wastewater, but anaerobic ammonia-oxidizing bacteria (AnAOB) are sensitive to environmental changes and toxic substances. This review summarizes the effects of commonly detected antibiotics in water matrices on the anammox process, and suggests that antibiotics targeting protein synthesis or DNA replication are most effective against AnAOB strains.
REVIEWS IN CHEMICAL ENGINEERING
(2022)
Review
Chemistry, Multidisciplinary
Nastaran Razeghi, Amir Hossein Hamidian, Chenxi Wu, Yu Zhang, Min Yang
Summary: Common methods and tools for sampling microplastics in freshwater ecosystems include using Manta trawls for surface water and shovel, trowel, spade, scoop, and spatula for sediments, with Van Veen grab commonly used for deep sediment sampling. There is a need to develop optimal methods to reduce identification time and effort, and to detect smaller-sized plastic particles.
ENVIRONMENTAL CHEMISTRY LETTERS
(2021)
Review
Engineering, Environmental
Hassan Sheikhzadeh, Amir Hossein Hamidian
Summary: Accumulation of heavy metals in fish tissues is crucial for monitoring the health of aquatic ecosystems, especially in edible parts of fish. Studies have shown that fish collected from the Persian Gulf have the highest concentrations of heavy metals, followed by species from the Caspian Sea. Fish species inhabiting the lower zone of the water column and those that are carnivorous or omnivorous tend to have higher levels of heavy metals, with the liver being the main accumulator organ.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2021)
Review
Green & Sustainable Science & Technology
Amir Hossein Hamidian, Elnaz Jafari Ozumchelouei, Farzaneh Feizi, Chenxi Wu, Yu Zhang, Min Yang
Summary: Wastewater treatment plants are a significant source of microplastics discharged into the environment, with their characteristics in different environmental matrices still largely unknown. Most microplastics in water samples are composed of PET, PS, PP, and PE, with a significant proportion being removed during primary and secondary treatment stages, and MBR being the most efficient tertiary treatment technology. The majority of microplastics removed during wastewater treatment end up in sewage sludge and are released into the environment via sludge applications.
JOURNAL OF CLEANER PRODUCTION
(2021)
Correction
Chemistry, Multidisciplinary
Nastaran Razeghi, Amir Hossein Hamidian, Chenxi Wu, Yu Zhang, Min Yang
ENVIRONMENTAL CHEMISTRY LETTERS
(2021)
Article
Marine & Freshwater Biology
Alireza Mirzajani, Amir Hossein Hamidian, Jalal Hassan
Summary: Metal concentrations were measured in predominant coastal fauna of the Caspian Sea, identifying potential bio-indicators and providing baseline data for biomonitoring programs elsewhere in the Caspian Sea. The study suggests the use of certain species for water pollution monitoring and comparisons of metal contamination worldwide.
OCEAN SCIENCE JOURNAL
(2021)
Review
Chemistry, Multidisciplinary
Nastaran Razeghi, Amir Hossein Hamidian, Alireza Mirzajani, Sajjad Abbasi, Chenxi Wu, Yu Zhang, Min Yang
Summary: While the concern over the increasing amount of plastic waste in the environment grows, there is a lack of investigation into microplastic pollution in freshwater ecosystems compared to marine ecosystems. Understanding the techniques and chemicals used for separating microplastics from freshwater environments can aid in further research and mitigation efforts.
ENVIRONMENTAL CHEMISTRY LETTERS
(2022)
Article
Marine & Freshwater Biology
Parichehr Hanachi, Mehdi Khoshnamvand, Tony R. Walker, Amir Hossein Hamidian
Summary: The presence of natural organic matter (NOM), modeled by humic acid (HA), can mitigate the acute toxicity of amino-functionalized polystyrene nanoplastics (PS-NH2) to green microalga Chlorella vulgaris, reducing cellular aggregation and cell size reduction. Higher concentrations of HA are more effective in reducing the toxicity of PS-NH2. The formation of cellular aggregates under the influence of PS-NH2 is likely related to the electrostatic attraction between the positively charged surfaces of the particles and the negatively charged polysaccharide walls of C. vulgaris.
AQUATIC TOXICOLOGY
(2022)
Article
Environmental Sciences
Malihe Mozafarjalali, Amir Hossein Hamidian, Mohammad Hossein Sayadi
Summary: Microplastics have gained attention due to their excessive spread in the environment, especially in water ecosystems. This study investigated the adsorption of iron and copper nanoparticles on three different microplastics (PP, PVC, and PS). Parameters such as pH, contact duration, and initial nanoparticle concentration were examined. The adsorption was measured using atomic absorption spectroscopic analysis. The maximum adsorption occurred at pH = 11, after 60 minutes of contact, and at an initial concentration of 50 mg L-1. Scanning electron microscope (SEM) images showed different surface characteristics of the microplastics. Fourier transform infrared analysis (FTIR) indicated physical adsorption, and X-ray energy diffraction spectroscopy (EDS) confirmed the adsorption of iron and copper nanoparticles. Freundlich adsorption isotherm and pseudo-second-order kinetics were found to fit the adsorption data better. The adsorption ability of microplastics ranked as PVC > PP > PS, with copper nanoparticles being adsorbed more than iron nanoparticles in general.
Article
Environmental Sciences
Amir Hossein Hamidian, Hassan Sheikhzadeh, Azadeh Boujari, Soheil Eagderi, Sohrab Ashrafi
Summary: This study measured the concentrations of Cd, Ni, and Pb in the liver and muscle tissues of two fish species, Barbus grypus and Tenualosa ilisha, collected from the Karoon River in Iran. The potential human health risks associated with these heavy metals were evaluated using EDI, THQ, HI, and TR. The results emphasize the importance of habitat and feeding habits in the uptake of HMs by these fish species. The study found that the EDI for all HMs exceeded the RfDo provided by the USEPA, indicating potential safety concerns for human consumption. The THQ values were within the permissible limit, while HI values indicated non-carcinogenic risks for consumers. The TR values for Pb were within an acceptable range for both species.
MARINE POLLUTION BULLETIN
(2023)
Article
Environmental Sciences
Mahdieh Dalvand, Amir Hossein Hamidian
Summary: The presence of microplastic particles has been reported worldwide, even in remote areas without human activities. Wetlands, as transitional areas between terrestrial and aquatic systems, have received less attention in microplastic pollution research compared to other aquatic ecosystems. This review examines documented research on microplastic occurrence and distribution in different components of wetland systems (excluding constructed wetlands). Based on the results, wetland ecosystems are susceptible to microplastic pollution, with PE/PP as the most common chemical composition and fiber/fragment as the dominant particle shape.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Biodiversity Conservation
Amir Hossein Hamidian, Seyed Mohammad Javad Abdolah Saberi, Sohrab Ashrafi, Leila Moghaddasi
Summary: Urbanization is causing the introduction of pollutants such as metals into ecosystems. This study measured lead concentrations in the lungs and feathers of house sparrows in Tehran and found that lead concentrations were higher in urban regions compared to a control station. Feathers can be used as indicators of local air pollution.
Article
Engineering, Environmental
Liying Zhu, Wei Liang, Chunrong Wang, Amir Hossein Hamidian
Summary: The study shows that the SHCW system has significant removal efficiency of COD, NH4+-N, and TP, especially in summer. The final concentrations of COD, NH4+-N, TN, and TP in the effluent were 13.75, 0.39, 11.89, and 0.09 mg/L, respectively. The treatment cost of SHCW is estimated to be 0.29 RMB/m(3) ($0.044/m(3), indicating it is an economical, feasible, and environmentally favorable treatment method.
ENVIRONMENTAL ENGINEERING SCIENCE
(2021)
