Pesticide residues in fresh Mazafati date fruit, soil, and water, and assessment of potential health risks to consumers.

A quantitative method based on quick, easy, cheap, effective, rugged, and safe technique (QuEChERS) sample extraction and ultra-performance liquid chromatography/tandem mass spectrometry (UHPLC-MS/MS) was evolved for the determination of 47 pesticide residues in fresh Mazafati date fruits from Bam City of Kerman Province, Iran. The recoveries for selected pesticides ranged from 88 to 110% with a relative standard deviation (RSD) of less than 20% at concentrations of 0.05 and 0.

Evaluating oxidative stress biomarkers in oncology nurses exposed to antineoplastic drugs: A cross-sectional study.

Purpose: Antineoplastic drugs (ADs) are widely used in cancer treatment. Nurses in chemotherapy centers are exposed to these drugs during preparation. They can affect healthy cells, leading to teratogenic and mutagenic effects, as well as oxidative stress.

Evaluation of Seasonal Variation on the Health Risks Using the Quantitative Microbial Risk Assessment Approach in a Wastewater Treatment Plant in Hamadan, Iran.

Background: Wastewater treatment plants (WWTPs) are a source of airborne bacterial contamination that can pose health risks to staff. The aim of this study was to evaluate seasonal variations in the health risks of exposure to bioaerosols using the quantitative microbial risk assessment (QMRA) approach in a WWTP in Hamadan, Iran.

Study Design: This was a descriptive cross-sectional study.

Relationship between Occupational Exposure to Respirable Crystalline Silica and Serum Copper Level as an Indicator of Silicosis: A Systematic Review and Meta-analysis.

Background: This systematic review and meta-analysis study evaluates a relationship between occupational exposure to respirable crystalline silica and serum copper (Cu) levels as an indicator for early detection of silicosis.

Materials And Methods: A systematic search was conducted, and the quality of results was evaluated in accordance with the guidelines of Preferred Reporting Items for Systematic Reviews and Meta-Analyses. The following databases were searched, including Web of Sciences, Scopus, and PubMed from inception until November 2021.

Application of FeO@TbBd nanobeads in microextraction by packed sorbent (MEPS) for determination of BTEXs biomarkers by HPLC-UV in urine samples.

A relatively new adsorbent based on covalent organic frameworks (COFs) was employed for the first time to extract and determine Trans, trans-muconic acid (tt-MA), Mandelic acid (MA), Hippuric acid (HA), and 3-Methylhippuric acid (m-MHA) in urine. For this purpose, microextraction was performed using the packed sorbent (MEPS) method. Following the extraction process, the prepared samples were specified via the high-performance liquid chromatography-ultraviolet detector system.

The potential renal toxicity of silver nanoparticles after repeated oral exposure and its underlying mechanisms.

Background: Silver nanoparticles (AgNPs) can accumulate in various organs after oral exposure. The main objective of the current study is to evaluate the renal toxicity induced by AgNPs after repeated oral exposure and to determine the relevant molecular mechanisms.

Methods: In this study, 40 male Wistar rats were treated with solutions containing 30, 125, 300, and 700 mg/kg of AgNPs.

Comparing formaldehyde risk assessment in histopathology laboratory staff using three methods based on US EPA approaches in the west of Iran.

. In different studies, various models have been used for exposure risk assessment of formaldehyde, so this study was conducted to compare existing methods. .

Impact of Filter on the Estimation of Quantitative Mixture Risk Caused by Some Chemical Constituents Generated from Popular Cigarette Brands in Iran.

Background: This study was conducted to evaluate the impact of filter on the eventual carcinogenic and non-carcinogenic risks caused by the main toxic constituents of popular cigarette brands in Iran.

Methods: At this laboratory study, the concentration of benzene, formaldehyde, arsenic, and cadmium in the mainstream smoke of 11 popular cigarette brands in Iran, on the without and with-filter modes was determined based on an established method. The hazard quotient (HQ), incremental lifetime cancer risk (ILCR), and mixture quantitative risk assessments (QRAs) were performed based on the QRA method recommended by United States Environmental Protection Agency (USEPA).

Knowledge, Attitude, and Practice of Pesticides Use Among Agricultural Workers.

Background: Pesticides have critical effects on human health. Because of the high amount of pesticides used, individual exposure is almost inevitable. According to the above-mentioned issues, few studies have been done in this area in Iran.

Occupational exposure to mercury vapor in a compact fluorescent lamp factory: Evaluation of personal, ambient air, and biological monitoring.

Compact fluorescent lamps (CFLs) have become a popular lighting choice in recent years despite the good performance of light-emitting diode (LED) lamps. The CFLs that have been produced recently contain 1.5-3.

Risk assessment in academic laboratories in the west of Iran: compare the CHRA and the RSLs methods.

In the laboratories staffs, there is potential for adverse health effects in exposure to chemicals. Therefore, risk assessment is one of the main issues to prevent these effects. The purpose of this study was to assess the health risk of laboratory staffs and compare the two methods, including 'Chemical Health Risk Assessment' (CHRA) and 'Regional Screening Levels' (RSLs), that developed by the Department of Occupational Safety and Health of Malaysia and the Environmental Protection Agency respectively.

Which Factors Influence Farmers' Use of Protective Measures During Pesticides Exposure?

Farmers in developing countries use harmful pesticides while taking few or no protective measures. There is limited evidence on factors affecting their safety measures. The objective of this study was to identify the underlying factors influencing farmers' protective behaviors (PBs) and use of personal protective equipment (PPE) during the exposure to pesticides.

Acute pesticide poisoning and related factors among farmers in rural Western Iran.

Although acute pesticide poisoning (APP) is known to be a major health concern among farmers in developing countries, knowledge of its prevalence and risk factors is limited. The purpose of this study was to investigate the prevalence and a broad range of potential work-related risk factors of APP among Iranian farmers and farm workers. This cross-sectional study was conducted in rural areas of the Twiserkan County in Iran.

The effect of silver nanoparticles on the reproductive system of adult male rats: A morphological, histological and DNA integrity study.

Background: Silver nanoparticles (AgNPs) are more often used in various products, and consequently the potential deleterious effects associated with exposure to them are of concern. Several lines of evidence have demonstrated that the toxicity of AgNPs affects different organs and leads to some side effects, including weight loss, inflammation and cell death.

Objectives: The aim of this study was to evaluate the effect of different concentrations of AgNPs on sperm parameters and testicular histology.

Exposure Assessment, Biological Monitoring, and Liver Function Tests of Operating Room Personnel Exposed to Halothane in Hamedan Hospitals, West of Iran.

Background: Occupational exposure to halogenated hydrocarbons has been associated with halothane hepatitis, an increase of liver enzymes, and congenital malformations. The objectives of this study were to investigate whether bromide, a urinary metabolite of halothane, could be used as a biological marker of exposure to this anesthetic gas and assessment of associated exposure to halothane with any significant changes in conventional parameters of liver function (serum aminotransferase activities).

Study Design: A cross-sectional study.

Optimization of a novel setup for an on-line study of elemental mercury adsorption by cold-vapor atomic absorption spectrometry.

Background: The objective of this work was developing a simple and stable time-based on-line setup for assessing the potential of mercury (Hg) vapor adsorption of the commercial sorbents used in air sampling and control operation followed by cold vapor atomic absorption spectrometry (CVAAS).

Methods: A special designed separation chamber was used where reduction of the injected Hg (II) solution took place. Purge gas passes through this chamber resulting to a prompt release of mercury vapor, purging into the adsorbent that regulated at the desired adsorption temperature.