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Environmental Pollution

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https://www.readbyqxmd.com/read/29677669/toxicological-interaction-of-multi-component-mixtures-to-vibrio-qinghaiensis-sp-q67-induced-by-at-least-three-components
#1
Ya-Qian Xu, Shu-Shen Liu, Ye Fan, Kai Li
It has been stated by researchers that the antibiotic polymyxin B sulfate (POL) is a key component inducing time-dependent antagonism in freshwater luminescent bacteria, Vibrio qinghaiensis sp.-Q67, exposed in the ternary mixture system of the ionic liquids, pesticide and antibiotics. However, the previous statement is limited to ternary and quaternary mixtures without considering situations such as the binary system. In order to prove the direct inducing of antagonism by POL in a more complete and systematic way, two categories of experiments (adding POL in non-antagonistic ternary system and decomposing antagonistic ternary system with POL into the binary system) have been conducted in this paper...
April 17, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29677143/label-free-biosensor-using-a-silver-specific-rna-cleaving-dnazyme-functionalized-single-walled-carbon-nanotube-for-silver-ion-determination
#2
Hui Wang, Yang Liu, Gang Liu
Silver, a very common heavy metal, has been employed in electronics, medicine, jewelry, and catalysis due to its excellent chemical and physical characteristics. Silver-containing wastes can cause environmental pollution, so it is vital to monitor the Ag(I) concentration. Here, a label-free biosensor was developed for the Ag(I) detection, which used single-walled carbon nanotubes/field effect transistor (SWNTs/FET) to functionalize with a specific DNAzyme, containing an Agzyme and a complementary strand DNA (CS-DNA) embedded an RNA-base...
April 20, 2018: Nanomaterials
https://www.readbyqxmd.com/read/29676737/full-scale-dissolved-air-flotation-daf-equipment-for-emergency-treatment-of-eutrophic-water
#3
Zhuang Tian, Can Wang, Min Ji
Eutrophication of urban rivers has caused severe environmental problems due to the pollution from point and diffuse sources. Although eutrophication can be alleviated by reducing the input to the river system, fast-treating terminal control technologies, especially under emergent situations, should be developed to reduce risks induced by eutrophication. The present study developed an emergency purification device based on dissolved air flotation (DAF) technology. After equipment commissioning and parameter optimization for applications in the field of engineering, the device was found to effectively remove total phosphorus, chlorophyll a, chemical oxygen demand, and turbidity in water by controlling the coagulant dosage and adjusting the gas-liquid mixing pump parameters...
April 2018: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/29676735/determination-of-phthalate-esters-in-seawater-of-chabahar-bay-using-dispersive-liquid-liquid-microextraction-coupled-with-gc-fid
#4
Beheshteh Ajdari, Mahmoud Nassiri, Mir Mahdi Zahedi, Morteza Ziyaadini
Phthalate esters (PEs), a group of environmental pollutants which are possibly carcinogenic to humans, have been detected in seawater. Seven PEs in seawater were quantitatively determined by using gas-chromatography flame ionizing detection after executing dispersive liquid-liquid microextraction. The suggested method is optimized for microextraction and determination of PEs in artificial sea water. Factors affecting the microextraction procedure such as the type and volume of extracting and dispersive solvents (carbon tetrachloride, 20 μL; methanol, 0...
April 2018: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/29676634/impact-of-seasonal-winter-air-pollution-on-health-across-the-lifespan-in-mongolia-and-some-putative-solutions
#5
David Warburton, Nicole Warburton, Clarence Wigfall, Ochir Chimedsuren, Delgerzul Lodoisamba, Sereeter Lodoysamba, Badarch Jargalsaikhan
Environmental pollution of the air, water, and soil comprise an increasingly urgent challenge to global health, well-being, and productivity. The impact of environmental pollution arguably has its greatest impact across the lifespan on children, women of childbearing age, and pregnant women and their unborn children, not only because of their vulnerability during development, but also because of their subsequent longevity. Ulaanbaatar, Mongolia, is a highly instructive, perhaps extreme, example of what happens with recent, rapid urbanization...
April 2018: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29676630/international-approach-to-environmental-and-lung-health-a-perspective-from-the-fogarty-international-center
#6
Roger I Glass, Joshua P Rosenthal
The global burden of lung disease is substantial, accounting for an estimated 7.5 million deaths per year, approximately 14% of annual deaths worldwide. The prime illnesses include, in descending order, chronic obstructive pulmonary disease, lung cancer, tuberculosis, acute respiratory infections, asthma, and interstitial lung fibrosis. Key risk factors include smoking, both indoor and outdoor air pollution, and occupational exposures. Although the distribution of both the diseases and the risk factors varies greatly by age, geography, and setting, the greatest burden falls on populations living in low- and middle-income countries...
April 2018: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29676625/exposomics-based-analysis-of-environmental-factors-associated-with-forced-expiratory-volume-in-1-second-at-6-months-post-lung-transplantation
#7
Michelle L North, Musawir Ahmed, Sepehr Salehi, Kavindi Jayasinghe, Manisha Tilak, Joyce Wu, Cheol-Heon Jeong, Greg J Evans, Chung-Wai Chow
RATIONALE: Chronic lung allograft dysfunction is the biggest impediment to long-term survival after lung transplantation. Studies have shown an increased risk for chronic lung allograft dysfunction in patients exposed to traffic-related air pollution, using residential distance to roadways and outdoor pollution. OBJECTIVES: Personal monitoring and the indoor environment post-lung transplantation have not been investigated. The exposome is a novel conceptual framework that allows for concurrent examination of multiple intrinsic and extrinsic factors, including environmental exposures, as well as changes in exposures over time, to elucidate the complex environmental factors that affect health outcomes...
April 2018: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29676472/the-first-taxus-rhizosphere-microbiome-revealed-by-shotgun-metagenomic-sequencing
#8
Da-Cheng Hao, Cai-Rong Zhang, Pei-Gen Xiao
In the present study, the shotgun high throughput metagenomic sequencing was implemented to globally capture the features of Taxus rhizosphere microbiome. Total reads could be assigned to 6925 species belonging to 113 bacteria phyla and 301 species of nine fungi phyla. For archaea and virus, 263 and 134 species were for the first time identified, respectively. More than 720,000 Unigenes were identified by clean reads assembly. The top five assigned phyla were Actinobacteria (363,941 Unigenes), Proteobacteria (182,053), Acidobacteria (44,527), Ascomycota (fungi; 18,267), and Chloroflexi (15,539)...
April 20, 2018: Journal of Basic Microbiology
https://www.readbyqxmd.com/read/29675822/the-field-experiments-and-model-of-the-natural-dust-deposition-effects-on-photovoltaic-module-efficiency
#9
Marek Jaszczur, Janusz Teneta, Katarzyna Styszko, Qusay Hassan, Paulina Burzyńska, Ewelina Marcinek, Natalia Łopian
The maximisation of the efficiency of the photovoltaic system is crucial in order to increase the competitiveness of this technology. Unfortunately, several environmental factors in addition to many alterable and unalterable factors can significantly influence the performance of the PV system. Some of the environmental factors that depend on the site have to do with dust, soiling and pollutants. In this study conducted in the city centre of Kraków, Poland, characterised by high pollution and low wind speed, the focus is on the evaluation of the degradation of efficiency of polycrystalline photovoltaic modules due to natural dust deposition...
April 20, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29675047/menstrual-hygiene-management-and-waste-disposal-practices-and-challenges-faced-by-girls-women-of-developing-countries
#10
REVIEW
Rajanbir Kaur, Kanwaljit Kaur, Rajinder Kaur
Menstruation and menstrual practices still face many social, cultural, and religious restrictions which are a big barrier in the path of menstrual hygiene management. In many parts of the country especially in rural areas girls are not prepared and aware about menstruation so they face many difficulties and challenges at home, schools, and work places. While reviewing literature, we found that little, inaccurate, or incomplete knowledge about menstruation is a great hindrance in the path of personal and menstrual hygiene management...
2018: Journal of Environmental and Public Health
https://www.readbyqxmd.com/read/29674805/ectomycorrhizal-and-endophytic-fungi-associated-with-alnus-glutinosa-growing-in-a-saline-area-of-central-poland
#11
Dominika Thiem, Agnieszka Piernik, Katarzyna Hrynkiewicz
Alnus glutinosa (black alder) is a mycorrhizal pioneer tree species with tolerance to high concentrations of salt in the soil and can therefore be considered to be an important tree for the regeneration of forests areas devastated by excessive salt. However, there is still a lack of information about the ectomycorrhizal fungi (EMF) associated with mature individuals of A. glutinosa growing in natural saline conditions. The main objective of this study was to test the effect of soil salinity and other physicochemical parameters on root tips colonized by EMF, as well as on the species richness and diversity of an EMF community associated with A...
2018: Symbiosis
https://www.readbyqxmd.com/read/29674213/the-effects-of-trophic-transfer-and-environmental-factors-on-microplastic-uptake-by-plaice-pleuronectes-plastessa-and-spider-crab-maja-squinado
#12
Natalie Ann Welden, Bexultan Abylkhani, Leigh Michael Howarth
Microplastic pollution is apparent throughout the marine environment from deep ocean sediments to coastal habitats. Most of this is believed to originate on land, although marine activities, such as fishing and shipping, also contribute to the release and redistribution of microplastic. The relative importance of these maritime plastic sources, the manner by which they are distributed in the environment, and their effect on uptake by marine organisms are yet to be fully quantified. In this study, the relative impact of fishing activities on microplastic uptake by demersal fish and crustaceans was explored...
April 16, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29674074/fluorescent-microarray-for-multiplexed-quantification-of-environmental-contaminants-in-seawater-samples
#13
Ana Sanchis, J-Pablo Salvador, Katrina Campbell, Christopher T Elliott, Weilin L Shelver, Qing X Li, M-Pilar Marco
The development of a fluorescent multiplexed microarray platform able to detect and quantify a wide variety of pollutants in seawater is reported. The microarray platform has been manufactured by spotting 6 different bioconjugate competitors and it uses a cocktail of 6 monoclonal or polyclonal antibodies raised against important families of chemical pollutants such as triazine biocide (i.e. Irgarol 1051®), sulfonamide and chloramphenicol antibiotics, polybrominated diphenyl ether flame-retardant (PBDE, i.e...
July 1, 2018: Talanta
https://www.readbyqxmd.com/read/29674040/speciation-analysis-of-inorganic-arsenic-by-magnetic-solid-phase-extraction-on-line-with-inductively-coupled-mass-spectrometry-determination
#14
P Montoro Leal, E Vereda Alonso, M M López Guerrero, M T Siles Cordero, J M Cano Pavón, A García de Torres
Arsenic, one of the main environmental pollutants and potent natural poison, is a chemical element that is spread throughout the Earth's crust. It is well known that the toxicity of arsenic is highly dependent on its chemical forms. Generally, the inorganic species are more toxic than its organics forms, and As(III) is 60 times more toxic than As(V). In environmental waters, arsenic exists predominantly in two chemical forms: As(III) and As(V). In view of these facts, fast, sensitive, accurate and simple analytical methods for the speciation of inorganic arsenic in environmental waters are required...
July 1, 2018: Talanta
https://www.readbyqxmd.com/read/29673962/orexin-receptor-expression-is-increased-during-mancozeb-induced-feeding-impairments-and-neurodegenerative-events-in-a-marine-fish
#15
Merylin Zizza, Mariana Di Lorenzo, Vincenza Laforgia, Emilia Furia, Giovanni Sindona, Marcello Canonaco, Rosa Maria Facciolo
Food intake ensures energy resources sufficient for basic metabolism, immune system and reproductive investment. It is already known that food-seeking performances, which are crucially controlled by orexins (ORXs), may be under the influence of environmental factors including pollutants. Among these, mancozeb (mz) is becoming an environmental risk for neurodegenerative diseases. Due to few studies on marine fish exposed to mz, it was our intention to correlate feeding latency, food intake and feeding duration to potential neurodegenerative processes in key diencephalic sites and expression changes of the ORX neuroreceptor (ORXR) in the ornate wrasses (Thalassoma pavo)...
April 16, 2018: Neurotoxicology
https://www.readbyqxmd.com/read/29673937/evaluating-riparian-solutions-to-multiple-stressor-problems-in-river-ecosystems-a-conceptual-study
#16
REVIEW
Christian K Feld, Maria Rosário Fernandes, Maria Teresa Ferreira, Daniel Hering, Steve J Ormerod, Markus Venohr, Cayetano Gutiérrez-Cánovas
Rivers are among the most sensitive of all ecosystems to the effects of global change, but options to prevent, mitigate or restore ecosystem damage are still inadequately understood. Riparian buffers are widely advocated as a cost-effective option to manage impacts, but empirical evidence is yet to identify ideal riparian features (e.g. width, length and density) which enhance ecological integrity and protect ecosystem services in the face of catchment-scale stressors. Here, we use an extensive literature review to synthesise evidence on riparian buffer and catchment management effects on instream environmental conditions (e...
April 8, 2018: Water Research
https://www.readbyqxmd.com/read/29673227/air-pollution-forecasts-an-overview
#17
REVIEW
Lu Bai, Jianzhou Wang, Xuejiao Ma, Haiyan Lu
Air pollution is defined as a phenomenon harmful to the ecological system and the normal conditions of human existence and development when some substances in the atmosphere exceed a certain concentration. In the face of increasingly serious environmental pollution problems, scholars have conducted a significant quantity of related research, and in those studies, the forecasting of air pollution has been of paramount importance. As a precaution, the air pollution forecast is the basis for taking effective pollution control measures, and accurate forecasting of air pollution has become an important task...
April 17, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29673198/chemoresistance-to-cancer-treatment-benzo-%C3%AE-pyrene-as-friend-or-foe
#18
Kevin Dzobo, Naseeha Hassen, Dimakatso Alice Senthebane, Nicholas Ekow Thomford, Arielle Rowe, Hendrina Shipanga, Ambroise Wonkam, M Iqbal Parker, Shaheen Mowla, Collet Dandara
Background: Environmental pollution such as exposure to pro-carcinogens including benzo-α-pyrene is becoming a major problem globally. Moreover, the effects of benzo-α-pyrene (BaP) on drug pharmacokinetics, pharmacodynamics, and drug resistance warrant further investigation, especially in cancer outpatient chemotherapy where exposure to environmental pollutants might occur. Method: We report here on the effects of benzo-α-pyrene on esophageal cancer cells in vitro, alone, or in combination with chemotherapeutic drugs cisplatin, 5-flurouracil, or paclitaxel...
April 17, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29672862/aryl-hydrocarbon-receptor-activation-by-diesel-exhaust-particles-mediates-epithelium-derived-cytokines-expression-in-severe-allergic-asthma
#19
Chih-Ming Weng, Chun-Hua Wang, Meng-Jung Lee, Jung-Re He, Hsin-Yu Huang, Ming-Wei Chao, Kian Fan Chung, Han-Pin Kuo
BACKGROUND: Exposure to environmental pollutants promotes Th2 cell responses. Aryl hydrocarbon receptor (AhR) activation aggravates allergic responses. Epithelium-derived thymic stromal lymphopoietin (TSLP), interleukin (IL)-25 and IL-33 are implicated in the dysregulation of Th2 immune responses in severe allergic asthma. METHODS: Bronchial biopsies of 28 allergic severe asthma and 6 mild asthma subjects from highly polluted areas were analyzed for AhR nuclear translocation (NT), cytokine expression and gene activation...
April 19, 2018: Allergy
https://www.readbyqxmd.com/read/29672477/assessment-of-community-awareness-and-practices-concerning-indoor-air-pollutants-madison-county-alabama-june-2017
#20
Charlene Siza, Melissa Morrison, Scott Harris, Timothy Hatch, Michael Tyler
The Alabama Department of Public Health (ADPH) conducts an annual community assessment to evaluate household preparedness and local public health concerns. In June 2017, ADPH conducted a Community Assessment for Public Health Emergency Response (CASPER), focusing on indoor air pollutants in seven neighborhoods in Madison County, Alabama, where a large percentage of homes were built before 1980. Local health partners had concerns about indoor air quality and environmental risks such as radon; however, limited information was available regarding community awareness, prevention, and mitigation measures related to potential exposures...
April 20, 2018: MMWR. Morbidity and Mortality Weekly Report
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