keyword
MENU ▼
Read by QxMD icon Read
search

pollutants

keyword
https://www.readbyqxmd.com/read/29161803/modeling-the-effects-of-pollutant-emissions-from-large-industrial-complexes-on-benzene-toluene-and-xylene-btx-concentrations-in-urban-areas
#1
Jin-Hee Bang, Inbo Oh, Soontae Kim, Seunghee You, Yangho Kim, Ho-Jang Kwon, Geun-Bae Kim
This study utilized the Community Multi-scale Air Quality (CMAQ) model to simulate the spatial distribution of benzene, toluene, and xylene (BTX) concentrations in Ulsan metropolitan region (UMR), where large national industrial complexes (IC) are located. Through controlling the pollutant emissions in major IC, this study has performed a quantitative analysis on the influence of pollutant emissions from the IC on the BTX concentrations in surrounding urban areas. The seasonal modeling results indicated that the average BTX concentrations were high around the petrochemical complexes, with higher concentrations in the surrounding urban areas during the summer...
November 20, 2017: Environmental Health and Toxicology
https://www.readbyqxmd.com/read/29161746/exercise-performed-concomitantly-with-particulate-matter-exposure-inhibits-lung-injury
#2
Adriano Silva-Renno, Guilherme Crisitanini Baldivia, Manoel C Oliveira-Junior, Maysa Alves Rodrigues Brandao-Rangel, Elias El-Mafarjeh, Marisa Dolhnikoff, Thaís Mauad, Jôse Mára Britto, Paulo Hilário Nascimento Saldiva, Luis Vicente Franco Oliveira, Ana P Ligeiro-Oliveira, Gustavo Silveira Graudenz, Rodolfo Paula Vieira
Air pollution is a growing problem worldwide, inducing and exacerbating several diseases. Among the several components of air pollutants, particulate matter (PM), especially thick (10-2.5 µm; PM 10) and thin (≤2.5 µm; PM 2.5), are breathable particles that easily can be deposited within the lungs, resulting in pulmonary and systemic inflammation. Although physical activity is strongly recommended, its effects when practiced in polluted environments are questionable. Therefore, the present study evaluated the pulmonary and systemic response of concomitant treadmill training with PM 2...
November 21, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29161700/association-between-environmental-particulate-matter-and-carpal-tunnel-syndrome-in-patients-undergoing-hemodialysis
#3
Cheng-Hao Weng, Ching-Chih Hu, Tzung-Hai Yen, Wen-Hung Huang
BACKGROUND/AIMS: The deposition of β2-microglobulin induced by reactive inflammation causing carpal tunnel syndrome (CTS) is one of the complications of dialysis-related amyloidosis in maintenance hemodialysis (MHD) patients. Air pollution levels, especially particulate matter with an aerodynamic diameter of <2.5 mm (PM2.5), have significantly been associated with the elevation of systemic inflammatory markers. There is no previous research on possible associations between CTS and PM2...
November 21, 2017: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29161679/the-changes-of-nutrient-composition-of-piled-laying-hen-manure-and-anaerobic-fermentation-for-recycling-as-a-dietary-ingredient-for-ruminants
#4
Tianlong Han, Liping Wang, Yanming Zhang, Jun Zhang, Dongsheng Han, Ning Lv, Xiaohua Han, Guoqiang Zhao, Min Wang
This study investigated the changes of nutrient compositions of piled laying hen manure, detected the physical and chemical components of laying hen manure fermented by mixed strains, and analysed its application effects on feeding ruminants. The results showed that with increasing of piling time, the contents of crude protein (CP) and ether extract (EE) in laying hen manure were reduced, while the contents of crude ash (CA), calcium (Ca) and phosphorus (P) were increased. Fermentation could effectively decrease pH value, reduce Ca/P ratio, lessen the total bacterial counts, and maintain the organisms contents in laying hen manure...
November 18, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/29161670/construction-of-plasmonic-ag-modified-phosphorous-doped-ultrathin-g-c3n4-nanosheets-bivo4-photocatalyst-with-enhanced-visible-near-infrared-response-ability-for-ciprofloxacin-degradation
#5
Yaocheng Deng, Lin Tang, Chengyang Feng, Guangming Zeng, Jiajia Wang, Yaoyu Zhou, Yani Liu, Bo Peng, Haopeng Feng
To realize the full utilization of solar energy, the design of highly efficient photocatalyst with improved visible-near-infrared photocatalysis performance has attracted great attentions for environment pollutant removal. In this work, we rationally employed the surface plasmon resonance effect of metallic Ag in the phosphorus doped ultrathin g-C3N4 nanosheets (PCNS) and BiVO4 composites to construct a ternary Ag@PCNS/BiVO4 photocatalyst. It was applied for the photodegradation of ciprofloxacin (CIP), exhibiting 92...
November 15, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/29161669/the-coastal-environment-affects-lead-and-sodium-uptake-by-the-moss-hypnum-cupressiforme-used-as-an-air-pollution-biomonitor
#6
Marie Renaudin, Sébastien Leblond, Caroline Meyer, Christophe Rose, Emeline Lequy
Several studies suggest that potential competition exists between marine cations and heavy metals for binding sites on the cell wall of mosses. This competition would impact the heavy metal concentration measured in mosses by biomonitoring programs, which may underestimate air pollution by heavy metals in a coastal environment. In the present study, we aim to identify possible mechanisms affecting lead uptake by mosses in a coastal environment, specifically, the competition between lead (Pb(2+)) and sodium (Na(+)) for binding sites in Hypnum cupressiforme (Hc)...
November 10, 2017: Chemosphere
https://www.readbyqxmd.com/read/29161632/ambient-air-pollution-adipokines-and-glucose-homeostasis-the-framingham-heart-study
#7
Wenyuan Li, Kirsten S Dorans, Elissa H Wilker, Mary B Rice, Itai Kloog, Joel D Schwartz, Petros Koutrakis, Brent A Coull, Diane R Gold, James B Meigs, Caroline S Fox, Murray A Mittleman
OBJECTIVE: To examine associations of proximity to major roadways, sustained exposure to fine particulate matter (PM2.5), and acute exposure to ambient air pollutants with adipokines and measures of glucose homeostasis among participants living in the northeastern United States. METHODS: We included 5958 participants from the Framingham Offspring cohort examination cycle 7 (1998-2001) and 8 (2005-2008) and Third Generation cohort examination cycle 1 (2002-2005) and 2 (2008-2011), who did not have type 2 diabetes at the time of examination visit...
November 18, 2017: Environment International
https://www.readbyqxmd.com/read/29161601/characterizing-emission-rates-of-regulated-pollutants-from-model-year-2012-heavy-duty-diesel-vehicles-equipped-with-dpf-and-scr-systems
#8
Yu Jiang, Jiacheng Yang, David Cocker, Georgios Karavalakis, Kent C Johnson, Thomas D Durbin
The regulated emissions of five 2012 and newer, low-mileage, heavy-duty Class 8 diesel trucks equipped with diesel particulate filters (DPFs) and selective catalytic reduction (SCR) systems were evaluated over test cycles representing urban, highway, and stop-and-go driving on a chassis dynamometer. NOx emissions over the Urban Dynamometer Driving Schedule (UDDS) ranged from 0.495 to 1.363g/mi (0.136 to 0.387g/bhp-hr) for four of the normal emitting trucks. For those trucks, NOx emissions were lowest over the cruise (0...
November 18, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29161513/insights-into-molecular-basis-of-acute-contact-toxicity-of-diverse-organic-chemical-in-honey-bee
#9
Xiao Li, Yuan Zhang, Hongna Chen, Huanhuan Li, Yong Zhao
The chemical pollutants, including pesticides and other industrial chemicals, have resulted in significant risks to the whole ecosystem. Therefore, the ecological risk assessment of chemicals is vital and necessary. Since honey bee (Apis mellifera) is probably among the most exposed species to the polluting chemicals, we focused on the in silico estimation of honey bee toxicity (HBT) of chemical and the analysis of the relevance of chemical HBT and several key physical-chemical properties and structural characteristics...
November 21, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/29161512/trophodynamics-of-organic-pollutants-in-pelagic-and-benthic-food-webs-of-lake-dianchi-importance-of-ingested-sediment-as-uptake-route
#10
Senrong Fan, Beili Wang, Hang Liu, Shixiong Gao, Tong Li, Shuran Wang, Yong Liu, Xueqin Liu, Yi Wan
Habitat is of great importance in determining the trophic transfer of pollutants in freshwater ecosystems; however, the major factors influencing chemical trophodynamics in pelagic and benthic food webs remain unclear. This study investigated the levels of p,p'-dichlorodiphenyldichloroethylene (p,p'-DDE), polycyclic aromatic hydrocarbons (PAHs), and substituted PAHs (s-PAHs) in two plankton species, six invertebrate species, and ten fish species collected from Lake Dianchi in southern China. Relatively high concentrations of PAHs and s-PAHs were detected with total concentrations of 11...
November 21, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/29161088/mechanistic-basis-for-obesity-related-increases-in-ozone-induced-airway-hyperresponsiveness-in-mice
#11
Stephanie A Shore
Obesity is a risk factor for asthma, especially nonallergic asthma. Ozone, a common air pollutant, is a nonallergic asthma trigger. Importantly, ozone-induced decrements in lung function are greater in obese and overweight human subjects than in lean individuals. Obese mice also exhibit exaggerated pulmonary responses to ozone. Ozone causes greater increases in pulmonary resistance, in bronchoalveolar lavage neutrophils, and in airway hyperresponsiveness in obese than in lean mice. Our data indicate that IL-33 plays a role in mediating these events...
November 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29161030/nanoplastic-in-the-north-atlantic-subtropical-gyre
#12
Alexandra Ter Halle, Laurent Jeanneau, Marion Martignac, Emilie Jardé, Boris Pedrono, Laurent Brach, Julien Gigault
Plastics can be found in all ecosystems across the globe. This type of environmental pollution is important, even if its impact is not fully understood. The presence of small plastic particles at the micro- and nanoscales is of growing concern, but nanoplastic has not yet been observed in natural samples. In this study, we examined four size fractions (meso-, large micro-, small micro-, and nanoplastics) of debris collected in the North Atlantic subtropical gyre. To obtain the nanoplastic portion, we isolated the colloidal fraction of seawater...
November 21, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/29160704/nanobiotechnology-for-environment-innovative-solutions-for-the-management-of-harmful-algal-blooms
#13
Matthew Robert Gellert, Beum Jun Kim, Samuel Evan Reffsin, Sebastian Eureko Jusuf, Nicole Denise Wagner, Stephen Winans, Mingming Wu
Nanobiotechnology has played important roles in solving contemporary health problems including cancer and diabetes, but has not yet been widely exploited for problems in food security and environmental protection. Water scarcity is an emerging worldwide problem due to climate change and population increase. Current methods of managing water resources are not efficient or sustainable. In this perspective, we focus on harmful algal blooms to demonstrate how nanobiotechnology can be explored to understand microbe-environment interaction and allow for toxin/pollutant detection with significantly improved sensitivity...
November 21, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29160699/diversity-and-abundance-of-high-molecular-weight-azaarenes-in-pah-contaminated-environmental-samples
#14
Zhenyu Tian, Joaquim Vila, Hanyan Wang, Wanda Bodnar, Michael D Aitken
Azaarenes are N-heterocyclic polyaromatic pollutants that co-occur with polycyclic aromatic hydrocarbons (PAHs) in contaminated soils. Despite the known toxicity of some high-molecular-weight azaarenes, their diversity, abundance, and fate in contaminated soils remain to be elucidated. We applied high-resolution mass spectrometry and mass-defect filtering to four PAH-contaminated samples from geographically distant sites and detected 232 azaarene congeners distributed in eight homologous series, including alkylated derivatives and two hitherto unknown series...
November 21, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/29160435/risk-factors-in-cardiovascular-disease-mortality-associated-with-high-exposure-to-vehicular-traffic
#15
Poliany Cristiny de Oliveira Rodrigues, Emerson Soares Dos Santos, Sandra de Souza Hacon, Eliane Ignotti
OBJECTIVE: To identify areas and risk factors in cardiovascular disease (CD) mortality associated with air pollution from high exposure to vehicular traffic. METHODS: Cross-sectional study of CD mortality in 2,617 individuals aged 45-85 years living in the urban area of Cuiabá and Várzea Grande, Mato Grosso State, Brazil, between 2009 and 2011. We used the residential proximity of up to 150 meters to a roadway of great vehicle flow as a proxy of high exposure to air pollution from vehicular traffic...
July 2017: Revista Brasileira de Epidemiologia, Brazilian Journal of Epidemiology
https://www.readbyqxmd.com/read/29160410/fuzzy-computational-models-to-evaluate-the-effects-of-air-pollution-on-children
#16
Gleise Silva David, Paloma Maria Silva Rocha Rizol, Luiz Fernando Costa Nascimento
OBJECTIVE: To build a fuzzy computational model to estimate the number of hospitalizations of children aged up to 10 years due to respiratory conditions based on pollutants and climatic factors in the city of São José do Rio Preto, Brazil. METHODS: A computational model was constructed using the fuzzy logic. The model has 4 inputs, each with 2 membership functions generating 16 rules, and the output with 5 pertinence functions, based on the Mamdani's method, to estimate the association between the pollutants and the number of hospitalizations...
November 13, 2017: Revista Paulista de Pediatria: Orgão Oficial da Sociedade de Pediatria de São Paulo
https://www.readbyqxmd.com/read/29160185/temperature-modulates-the-interaction-between-fungicide-pollution-and-disease-evidence-from-a-daphnia-microparasitic-yeast-model
#17
Ana P Cuco, Bruno B Castro, Fernando Gonçalves, Justyna Wolinska, Nelson Abrantes
Temperature is expected to modulate the responses of organisms to stress. Here, we aimed to assess the influence of temperature on the interaction between parasitism and fungicide contamination. Specifically, using the cladoceran Daphnia as a model system, we explored the isolated and interactive effects of parasite challenge (yeast Metschnikowia bicuspidata) and exposure to fungicides (copper sulphate and tebuconazole) at two temperatures (17 and 20 °C), in a fully factorial design. Confirming a previous study, M...
November 21, 2017: Parasitology
https://www.readbyqxmd.com/read/29159702/evaluation-of-levels-sources-and-health-hazards-of-road-dust-associated-toxic-metals-in-jalalabad-and-kabul-cities-afghanistan
#18
Waqar Azeem Jadoon, Wahdatullah Khpalwak, Russel Chrispine Garven Chidya, Sherif Mohamed Mohamed Ali Abdel-Dayem, Kazuhiko Takeda, Masood Arshad Makhdoom, Hiroshi Sakugawa
This study was designed to investigate selected road-dust associated heavy metals, their relations with natural and anthropogenic sources, and potential human and environmental health risks. For this purpose, 42 and 36 road-dusts samples were collected from Jalalabad and Kabul cities (Afghanistan), respectively. The following elements were found in descending concentrations: Mn, Zn, Pb, Ni, Cu, Cr, Co, and Cd in Jalalabad; and Mn, Zn, Ni, Cu, Cr, Pb, Co, and Cd in Kabul. Except for Ni, all the elemental contents were less than the Canadian permissible limits in residential/parkland soils...
November 20, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/29159455/plant-available-phosphorus-in-soil-as-predictor-for-the-leaching-potential-insights-from-long-term-lysimeter-studies
#19
Holger Rupp, Ralph Meissner, Peter Leinweber
This study aimed to demonstrate the impact of phosphorus (P) mineral fertilization on topsoil P content and P leaching. We evaluated 83 datasets from 25 years from lysimeter experiments involving different cropping systems (winter crop, summer crop and autumn tillage, harvested grass) or unfertilized fallow, four types of soil texture, and three levels of applied mineral P fertilizer. A positive monotonic and significant correlation was indicated between P in the topsoil determined by the double lactate method (P DL) and the yearly flow-weight total (TP) concentrations in leachates with Spearman rank correlations r s (r s > 0...
November 20, 2017: Ambio
https://www.readbyqxmd.com/read/29159440/identifying-and-assessing-human-activity-impacts-on-groundwater-quality-through-hydrogeochemical-anomalies-and-no3-nh4-and-cod-contamination-a-case-study-of-the-liujiang-river-basin-hebei-province-p-r-china
#20
Cong Peng, Jiang-Tao He, Man-Li Wang, Zhen-Guo Zhang, Lei Wang
In the face of rapid economic development and increasing human activity, the deterioration of groundwater quality has seriously affected the safety of the groundwater supply in eastern China. Identifying and assessing the impact of human activities is key to finding solutions to this problem. This study is an effort to scientifically and systematically identify and assess the influence of human activities on groundwater based on irregularities in hydrochemical properties and water contamination, which are considered to directly result from anthropogenic activity...
November 20, 2017: Environmental Science and Pollution Research International
keyword
keyword
102626
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"