80 results for “chemicals”

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Research ArticleOpen accessEvery word in the titleThe Fate of Non-Volatile Organic Chemicals in The Agricultural EnvironmentMohammad A. Batiha, Abdul Amir H. Kadhum, Zahedi Fisal et al.Multimedia dynamic model of the fate of non-volatile organic chemicals (NVOC) in the agricultural environment is described. The modeled environment, consisting of up to three major surfaces environmental compartments, includes air, agricultural soil, and surface water. This model is based on the aquivalence approach suggested by Mackay and co-workers in 1989. As the movement of chemicals in the environment is … …American Journal of Applied Sciences, Vol. 4, Issue 7 · 31 Jul 2007 · 7,043 accessesView PDF Cite

Research ArticleOpen accessEvery word in the titleIntegrated Monitoring of Endocrine-Disrupting Chemicals: Analytical Chemistry and Biological Assessment ApproachesChangjin Li, Jing Huo, Zijun Dou et al.Endocrine-Disrupting Chemicals (EDCs) in aquatic environments pose significant threats to ecosystems and human health. These compounds interfere with hormonal regulation at low concentrations and have non-monotonic dose-response relationships, posing challenges to conventional risk assessment. This review systematically compares current EDC monitoring methods, including instrumental chemical analysis and receptor-based biological detection systems, to evaluate sensitivity thresholds, sample throughput, and mechanistic selectivity … …American Journal of Biochemistry and Biotechnology, Vol. 22, Issue 2 · 3 Jul 2026 · 1,081 accessesView PDF Cite

Research ArticleOpen accessEvery word in the titleMAM-An Aquivalence-based Dynamic Mass Balance Model for the Fate of Non-Volatile Organic Chemicals in the Agricultural EnvironmentMohammad A. Batiha, Abdul Amir H. Kadhum, Abu Bakar Mohamad et al.A Multimedia Agricultural Model (MAM) for predicting the fate and transport of Non-Volatile Organic Chemicals (NVOCs) in the agricultural environment was presented. It is an expanded and modified version of the three compartmental model introduced by Batiha and co-authors in 2007, which is an aquivalence-based level IV. MAM considered five environmental compartments to include the air, water, soil, sediment and … …American Journal of Engineering and Applied Sciences, Vol. 1, Issue 4 · 31 Dec 2008 · 8,122 accessesView PDF Cite

Research ArticleOpen accessEvery word in the titleAssessment of Soil Solution Chemicals after Tannery Effluents DisposalCélia A. Surita, Thomas Gloaguen, Célia R. Montes, Carlos T.S. DiasKnowledge about soil solution chemicals is important for assessing their mobility, availability, migration to groundwater and toxicity to plants. The objective of this study was to apply factor analysis to data obtained on soil solution chemicals during a one-year monitoring program in a controlled experiment with tannery effluents disposed on the soil surface, to extract information on their relationship and … …American Journal of Applied Sciences, Vol. 4, Issue 12 · 31 Dec 2007 · 6,772 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsHepato and Nephrotoxicity Caused by Sub-Chronic Exposure to Relevant Concentrations of Human Exposure to Glyphosate-Based Herbicide: An Experimental Study in RatsFernanda de Maria Serra, Letícia Rocha Magalhães, Beatriz Bertholace Magalhães Silva et al.Glyphosate's remarkable effectiveness in weed control has made it among the foremost widely employed herbicides globally. Several Glyphosate-Based Herbicides (GBHs) contain 1-4 dioxane, a compound known to induce cancer in animals and potentially contribute to liver and kidney damage in humans. The objective was to assess the liver and kidney toxicity resulting from sub-chronic exposure to GBH in rats. Eighty … …OnLine Journal of Biological Sciences, Vol. 24, Issue 2 · 26 Dec 2023 · 5,194 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsAdsorption of Nickel and Zinc by Residual SoilsNur ’Aishah Zarime, W. Y. Wan Zuhairi, Sivarama KrishnaSoil has long been utilized as low cost liner material to prevent contamination from leachate to groundwater media. To find a suitable soil material for this purpose is a great challenge. This study describes the potential use of residual soil to functions as engineered clay liner for waste disposal landfill in Malaysia. Three types of residual soils were investigated namely … …American Journal of Environmental Sciences, Vol. 10, Issue 6 · 5 Dec 2014 · 7,116 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsResidential Exposure of Environment Toxic Substance Outcome during Menstrual CycleS. Alagendran, G Archunan, M. P. Jonathan et al.Problem statement: It was intended to diagnose and treat the disorders of female reproductive system where they are exposed to environmentally toxic pesticides and estrogenic compounds like bisphenol A which are the main reason for the infertility problems. Approach: Human saliva contains arrays of proteins that have distinct biological functions. Results: Salivary hormones concentrations of luteinising hormone, follicle stimulating hormone, … …American Journal of Environmental Sciences, Vol. 6, Issue 3 · 30 Jun 2010 · 6,873 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsHow to Guide and Assess Risk Reduction using Risk Characterization IndicatorsPeter Borgen Sørensen, Rainer Brüggemann, Marianne Thomsen et al.Problem statement: The risk level predictions in risk assessment often suffer from uncertainties and may, thus, overlook some adverse effects. This problem can be reduced by using risk reduction strategies that continuously guide activities toward lowest possible risk. Approach: This study suggested a method to guide and assess such risk reduction strategies using multi-indicator risk characterization. It was a challenge … …American Journal of Applied Sciences, Vol. 6, Issue 6 · 30 Jun 2009 · 7,035 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsAn Assessment of Mirex Concentrations along the Southern Shorelines of the Great Lakes, USADennis A. Apeti, Gunnar G. lauensteinMirex is a persistent and toxic polychlorinated pesticide that has compromised environmental quality in the Great Lakes region since the 1960s. As a bioaccumulative and carcinogenic compound, mirex at its current levels in Lake Ontario is a concern because of the potential for trophic level transfer and biomagnification in top predators. As a part of the NOAA’s National Status and … …American Journal of Environmental Sciences, Vol. 2, Issue 3 · 30 Sep 2006 · 6,934 accessesView PDF Cite

Research ArticleOpen accessIn the abstractIn Vitro and in Silico Evaluation of Bioactive Compounds from Usnea longissima Ach. as Antimicrobial AgentsOky Kusuma Atni, Erman Munir, Nursahara Pasaribu et al.Lichens, formed from symbiotic association between of fungi with phototrophic organisms, generate a variety of bioactive chemicals having medicinal potential. This research aimed to examine the antibacterial characteristics of Usnea longissima Ach. using both in vitro and in silico methodologies. The effectiveness of lichen methanol extracts against different diseases was evaluated using the disc diffusion technique. Pathogens included gram-positive, gram-negative, … …OnLine Journal of Biological Sciences, Vol. 25, Issue 4 · 10 Feb 2026 · 1,721 accessesView PDF Cite