The daily intake of trace elements through water resources and their adverse health effects is a critical issue. purpose this research was to assess the carcinogenic non-carcinogenic risks exposure iron (Fe), copper (Cu), manganese (Mn), zinc (Zn), chromium (Cr), lead (Pb), arsenic (As) in groundwater Sari city, Iran. concentrations total number 66 samples from sources were measured using inductively coupled plasma mass spectrometry (ICP-MS). hazard index (HI) levels for adults, teenagers,...

Industrialisation and urbanisation in the world Iran have led to high levels of heavy metal contamination water resources. The health risk exposure metals via drinking two western cities Mazandaran province, was assessed. concentrations arsenic (As), chromium (Cr), lead (Pb) 60 samples collected from groundwater resources Noshahr Ramsar were determined using inductively coupled plasma mass spectrometry (ICP-MS). carcinogenic non-carcinogenic risks assessment for adults, teenagers, children...

One of the driest countries in world, Iran has been facing several challenges related to water shortage, leading serious social, economic, and environmental impacts. Given escalating urbanization industrial development within Iran, a comprehensive assessment surface quality utilizing both US National Sanitation Foundation Water Quality Index (NSFWQI) for (IRWQIsc) is imperative. This study aimed evaluate Talar River Mazandaran, 2023, through IRWQIsc NSFWQI. was conducted River, located...

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) expresses a multifunctional papain-like proteinase (PLpro), which mediates the processing of viral replicase polyprotein. Inhibition PLpro has been shown to suppress replication. This study aimed explore new anti-PLpro candidates by applying virtual screening based on GRL0617, known inhibitor SARS (SARS-CoV). The three-dimensional (3D) structure SARS-CoV-2 was built homology modeling, using SARS-CoV as template. model refined and...

The objective of this study was to identify the components, composition, generation rate and management dental waste in Urmia, Iran. Fifteen centers including eight general offices, five specialist offices two clinics were selected samples taken from each office. Then, wastes manually separated 31 components weighted. results showed that total all 58.94, 17.92 10.22 kg/day, respectively. Domestic, potentially infectious, toxic chemical pharmaceutical also constituted 35.46, 34.24, 11.83 5.56...

Toxicity of Municipal Wastewater Treatment Plant Effluent (MWWTPE) was evaluated using bioassay with Daphnia Magna (D. Magna). Acute toxicity tests were performed on effluent samples Urmia municipal wastewater treatment plant (Biolac system) according to the USEPA methods and 24, 48, 72, 96 hr lethal concentration 50% (LC50) calculated by application Probit analysis. Also interrelationship between main physicochemical parameters (BOD5, COD, TSS) 24hr-LC50, studied. Results showed that safe...

Decomposition of Basic Blue 9 (BB-9) in aqueous solution using ozonation and catalytic system (O3/granular activated carbon [GAC]) the bench-scale experiment was investigated. The effect ozone dose, pH, GAC contents removal BB-9 biodegradability effluent such as Biochemical Oxygen Demand (BOD5); Chemical (COD), BOD5/COD were studied. Results show that pH concentration are significant factors on BB-9; COD BOD5. Kinetic studies reactions indicated followed first-order kinetics model....

The present study was designed for identification of arthropods species in Urmia city municipal solid waste (MSW) landfill 2014. specimens were collected by hand and with sweep net. After the initial classification at order level, genus done using morphological keys. In total, 1,913 arthropod samples collected. classified into four different classes. most abundant arachnids Steatoda paykulliana Walckenaer (Araneae: Theridiidae) Agelenopsis spp. Giebel Agelenidae). Out nine insect orders,...

Gastrointestinal illness refers to a broad range of diseases that affect the digestive system, including infections caused by bacteria, viruses, and parasites. Quantitative Microbial Risk Assessment (QMRA) is powerful tool used evaluate risks associated with microbial pathogens in various environments. The main objective this study was conduct quantitative assessment gastrointestinal illnesses occur as result exposure

The aim of this study was to evaluate the effects nitroxin biofertilizer and chemical fertilizer on growth, yield, essential oil composition dill. experiment conducted under field condition in randomized complete block design with three replications two factors.The first factor concentrations (0%, 50%, 100%) recommended amount (1 l biological for 30 kg seed). second following treatments: no (control) 50 100 ha(-1) urea along 300 ammonium phosphate. Different characteristics such as plant...

Waterborne organisms in marine water generally originate from untreated wastewater discharged into the sea. The presence of numerous leisure beaches Mahmoudabad city, Iran, annually attracts thousands tourists all over country to participate recreational swimming activities. This study probabilistically characterized health risks associated with engendered by waterborne pathogens, such as intestinal enterococci and Escherichia coli (E. coli) at 15 sampling points along using quantitative...

ABSTRACT: Phytoremediation is a potential, innovative, and cost‐effective technology for non‐destructive remediation of heavy‐metal contaminated soils. A field trial was conducted to evaluate the phytoremediation efficiencies three plants effects ethylenediaminetetraacetic acid (EDTA) or ammonium addition [(NH 4 ) 2 SO NH NO 3 ] assisting removal heavy metals (Pb, Hg, Cd) from soil. The tested include Amaranthus retroflexus, Sorghum bicolor , Lolium perrene . Results showed that maximum...

Application of low purity horseradish peroxidase (HRP) extracted from root for oil removal oily wastewater was studied. Factors, such as concentration; contact time; HRP dose; H2O2 pH; temperature; Fe2+ ion and effect emulsifier (Tween 80), were Results indicate optimum concentration 20, 60, 120 mg/L 2 U/mL pH 7.5. Removal efficacy increased with an increase in at first, reached maximum 58.33% 4 mM, then decreased. Temperature has significantly on removal. Presence mixture solution no...

Background: This study aimed to evaluate the Environmental Performance Index (EPI) in field of climate changes Iran 2020, compare these indexes Middle East countries and developed countries, relationship between gross domestic product (GDP) some as well 10 world. Methods: Data related EPI GDP were extracted from database Yale University (https://epi.yale.edu) World Bank. The them was investigated using linear regression analysis. Results: results showed that ranked fourteenth sixth among...

Background: Helicobacter pylori is classified as a carcinogen, and it also the most common cause of chronic bacterial infection peptic ulcers. Approximately 45% people are infected with bacterium. Methods: In this study, H. genes, CagA VacA, were investigated in drinking water, using 100 samples (50 from municipal water supply 50 effluent household treatment devices). DNA was extracted colonies positive heterotrophic plate count (HPC) for use molecular testing microbial identification. The...