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Environmental Pollution

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https://www.readbyqxmd.com/read/28641183/size-partitioning-and-mixing-behavior-of-trace-metals-and-dissolved-organic-matter-in-a-south-china-estuary
#1
Wenhao Wang, Min Chen, Laodong Guo, Wen-Xiong Wang
The Jiulong River estuary, located in the southeastern China, suffered from metal pollution due to industrial effluent releases. Mixing of effluent and estuarine water may have significantly affected the size distribution of trace metals and their environmental fate. In the present study, colloidal size distribution of organic matter and selected metals were quantified using asymmetric flow field-flow fractionation (AF4) and ICP-MS. We demonstrated a dominance of dissolved metals in the 1-10kDa fraction, and metals such as Cu, Zn, Ni, Co, Pb, Cd and Mn were mostly regulated by terrestrial fulvic acid...
June 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28641089/combined-time-lapse-magnetic-resonance-imaging-and-modeling-to-investigate-colloid-deposition-and-transport-in-porous-media
#2
Alizée P Lehoux, Pamela Faure, François Lafolie, Stéphane Rodts, Denis Courtier-Murias, Philippe Coussot, Eric Michel
Colloidal particles can act as vectors of adsorbed pollutants in the subsurface, or be themselves pollutants. They can reach the aquifer and impair groundwater quality. The mechanisms of colloid transport and deposition are often studied in columns filled with saturated porous media. Time-lapse profiles of colloid concentration inside the columns have occasionally been derived from magnetic resonance imaging (MRI) data recorded in transport experiments. These profiles are valuable, in addition to particle breakthrough curves (BTCs), for testing and improving colloid transport models...
June 14, 2017: Water Research
https://www.readbyqxmd.com/read/28640897/impact-of-selected-non-steroidal-anti-inflammatory-pharmaceuticals-on-microbial-community-assembly-and-activity-in-sequencing-batch-reactors
#3
Cong Jiang, Jinju Geng, Haidong Hu, Haijun Ma, Xingsheng Gao, Hongqiang Ren
This study covers three widely detected non-steroidal anti-inflammatory pharmaceuticals (NSAIDs), diclofenac (DCF), ibuprofen (IBP) and naproxen (NPX), as NSAIDs pollutants. The objective is to evaluate the impact of NSAIDs at their environmental concentrations on microbial community assembly and activity. The exposure experiments were conducted under three conditions (5 μg L-1 DCF, 5 μg L-1 DCF+5 μg L-1 IBP and 5 μg L-1 DCF+5 μg L-1 IBP+ 5 μg L-1 NPX) in sequencing batch reactors (SBRs) for 130 days...
2017: PloS One
https://www.readbyqxmd.com/read/28640811/comparing-bee-species-responses-to-chemical-mixtures-common-response-patterns
#4
Alex Robinson, Helen Hesketh, Elma Lahive, Alice A Horton, Claus Svendsen, Agnes Rortais, Jean Lou Dorne, Jan Baas, Matthew S Heard, David J Spurgeon
Pollinators in agricultural landscapes can be exposed to mixtures of pesticides and environmental pollutants. Existing mixture toxicity modelling approaches, such as the models of concentration addition and independent action and the mechanistic DEBtox framework have been previously shown as valuable tools for understanding and ultimately predicting joint toxicity. Here we apply these mixture models to investigate the potential to interpret the effects of semi-chronic binary mixture exposure for three bee species: Apis mellifera, Bombus terrestris and Osmia bicornis within potentiation and mixture toxicity experiments...
2017: PloS One
https://www.readbyqxmd.com/read/28640797/rural-and-urban-differences-in-air-quality-2008-2012-and-community-drinking-water-quality-2010-2015-united-states
#5
Heather Strosnider, Caitlin Kennedy, Michele Monti, Fuyuen Yip
PROBLEM/CONDITION: The places in which persons live, work, and play can contribute to the development of adverse health outcomes. Understanding the differences in risk factors in various environments can help to explain differences in the occurrence of these outcomes and can be used to develop public health programs, interventions, and policies. Efforts to characterize urban and rural differences have largely focused on social and demographic characteristics. A paucity of national standardized environmental data has hindered efforts to characterize differences in the physical aspects of urban and rural areas, such as air and water quality...
June 23, 2017: MMWR. Surveillance Summaries: Morbidity and Mortality Weekly Report. Surveillance Summaries
https://www.readbyqxmd.com/read/28636053/evidence-of-bad-recycling-practices-bfrs-in-children-s-toys-and-food-contact-articles
#6
A Guzzonato, F Puype, S J Harrad
Brominated flame retardants (BFRs) have been used intentionally in a wide range of plastics, but are now found in an even wider range of such materials (including children's toys and food contact articles) as a result of recycling practices that mix BFR-containing waste plastics with "virgin" materials. In this study Br was quantified in toy and food contact samples on the assumption that its concentration can be used as a metric for BFR contamination. Subsequently, compound specific determination of BFRs was performed to evaluate the validity of the aforementioned assumption, crucial to render rapid, inexpensive, in situ Br determination in non-laboratory environments (such as waste handling facilities) a viable option for sorting wastes according to their BFR content...
June 21, 2017: Environmental Science. Processes & Impacts
https://www.readbyqxmd.com/read/28635641/the-fate-of-pollutants-in-porous-asphalt-pavements-laboratory-experiments-to-investigate-their-potential-to-impact-environmental-health
#7
Susanne M Charlesworth, Jamie Beddow, Ernest O Nnadi
Pervious Paving Systems (PPS) are part of a sustainable approach to drainage in which excess surface water is encouraged to infiltrate through their structure, during which potentially toxic elements, such as metals and hydrocarbons are treated by biodegradation and physical entrapment and storage. However, it is not known where in the PPS structure these contaminants accumulate, which has implications for environmental health, particularly during maintenance, as well as consequences for the recycling of material from the PPS at the end-of-life...
June 21, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28634868/occurrence-removal-and-health-risk-assessment-of-phthalate-esters-in-the-process-streams-of-two-different-wastewater-treatment-plants-in-lagos-and-ogun-states-nigeria
#8
O O Olujimi, O A Aroyeun, T F Akinhanmi, T A Arowolo
Phthalate esters (PEs) are one of the environmentally active organic pollutants capable of causing endocrine disruption. The levels of PE congeners were determined in the influent and effluent from Covenant Oxidation Pond (COP) and Ikeja Wastewater Treatment Plant (IWWTP). Standard methods were adopted for determining the physical and chemical parameters of the water samples. The water samples for PE congener's determination were collected, acidified and stored at 4 °C prior to liquid-liquid extraction and analysis by gas chromatograph...
July 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28634803/a-method-for-reducing-environmental-pollution-by-using-essential-oils-in-rodent-pest-management-program
#9
Goran Jokić, Tanja Blažić, Rada Đurović-Pejčev, Tijana Đorđević, Suzana Đedović, Marina Vukša
Strong-smelling plant extracts, such as essential oils, have a variety of feeding effects on mammals. Considering current concerns over long-term health issues and environmental effects of chemicals, plant-based products with repellent or antifungal activities may represent good solutions for improvement of rodent pest control programs. The present study was therefore focused on examining the effects of bergamot, lavender, and thyme essential oils as additional bait components on daily intakes of cereal-based baits by wild house mice...
June 21, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28634414/monitoring-and-analysis-of-coastal-reclamation-from-1995-2015-in-tianjin-binhai-new-area-china
#10
Wengang Chen, Dongchuan Wang, Yong Huang, Liding Chen, Lihui Zhang, Xiangwang Wei, Mengqin Sang, Feicui Wang, Jinya Liu, Bingxu Hu
Increasing coastal reclamation activities have been undertaken to solve the conflict between people and land resources, creating significant challenges for coordinating coastal reclamation, economic development and environmental protection. This paper analyzes the effects of coast reclamation on Gross Domestic Product growth and the quality of inshore seawater in the Tianjin Binhai New Area. Remote sensing and a Geographic Information System were used to extract the information of coastal reclamation. The correlation between the area of coastal reclamation, GDP growth and the quality of inshore seawater was analyzed and a decoupling elasticity model was used to explore trends in the relationship between economic development and coastal reclamation...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28634112/concentrations-of-environmental-organic-contaminants-in-meat-and-meat-products-and-human-dietary-exposure-a-review
#11
REVIEW
José L Domingo
Meat and meat products is one of the most relevant food groups in an important number of human diets. Recently, the IARC, based on results of a number of epidemiological studies, classified the consumptions of red meat and processed meat as "probably carcinogenic to humans" and as "carcinogenic to humans", respectively. It was suggested that the substances responsible of the potential carcinogenicity would be mainly generated during meat processing, such as curing and smoking, or when meat is heated at high temperatures...
June 17, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28633837/synthesis-and-characterization-of-zns-ni-nps-loaded-on-ac-derived-from-apple-tree-wood-and-their-applicability-for-the-ultrasound-assisted-comparative-adsorption-of-cationic-dyes-based-on-the-experimental-design
#12
Hossein Zare Khafri, Mehrorang Ghaedi, Arash Asfaram, Mohammad Safarpoor
The applicability of ZnS:Ni nanoparticles loaded on activated carbon derived from apple tree wood (ZnS:Ni-NPs-ACATW) for the adsorption of Methylene Blue (MB) and Janus Green B (JGB) dyes in single system from water solution has been described. The synthesized adsorbent characterized and identified by UV-Vis, FE-SEM, EDX, TEM, FTIR and XRD. The influences of operation parameters including initial MB or JGB concentration (9.0-33.0mgL(-1)), pH (4.0-10.0), extent of adsorbent (0.08-0.12g) and sonication time (4...
September 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28633538/relationship-between-emergency-care-utilization-ambient-temperature-and-the-pollution-standard-index-in-taiwan
#13
Ching-Hui Tseng, Li-Chin Lu, Shao-Hwan Lan, Yen-Ping Hsieh, Shou-Jen Lan
This study applied a vector error correction model to investigate the effects of ambient temperature (AT) and air quality index values on emergency care utilization (ECU). The Pollution Standards Index (PSI) and total suspended particulates (TSP) were used for analysis. Data were obtained from the National Health Insurance Research Database of the Ministry of Transportation and Communications and Ministry Environmental of Protection Administration of Taiwan. Data from January of 1998 to December of 2012 (180 months) were analyzed...
June 21, 2017: International Journal of Environmental Health Research
https://www.readbyqxmd.com/read/28633118/surface-enhanced-raman-scattering-properties-of-dynamically-tunable-nanogaps-between-au-nanoparticles-self-assembled-on-hydrogel-microspheres-controlled-by-ph
#14
Huilin Li, Dandan Men, Yiqiang Sun, Dilong Liu, Xinyang Li, Liangbin Li, Cuncheng Li, Weiping Cai, Yue Li
We developed an interesting route for preparing a poly (acrylamide-co-acrylic acid) (P(AAm-co-AA)) hydrogel microsphere with a coating of Au nanospheres (hydrogel microsphere @ Au nanospheres) through self-assembly based on electrostatic interaction. The fabricated composites could be used as highly sensitive enhanced Raman scattering substrates. The nanogaps between adjacent Au nanospheres were dynamically tuned by volume changes in the hydrogel microspheres in the semiwet state under different pH conditions...
June 13, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28633101/assessment-of-environmental-and-health-risks-in-former-polymetallic-ore-mining-and-smelting-area-slovakia-spatial-distribution-and-accumulation-of-mercury-in-four-different-ecosystems
#15
Július Árvay, Lenka Demková, Martin Hauptvogl, Miloslav Michalko, Daniel Bajčan, Radovan Stanovič, Ján Tomáš, Miroslava Hrstková, Pavol Trebichalský
Former long-term mining and smelting of pollymetallic ores in the Middle Spiš area caused a serious contamination problem of the environment with heavy metals and metalloids, especially mercury (Hg). Several studies have reported concentration of Hg in the area but this paper provides first detailed characterization of Hg contamination of different environmental components in agricultural, forest, grassland and urban ecosystems. The ecosystems are in different distances from emission sources - former mercury and copper smelting plants in NE Slovakia...
June 17, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28632927/prospective-associations-between-environmental-heavy-metal-exposure-and-renal-outcomes-in-adults-with-chronic-kidney-disease
#16
Chun-Chieh Tsai, Chia-Lin Wu, Chew-Teng Kor, Ie-Bin Lian, Chin-Hua Chang, Teng-Hsiang Chang, Chia-Chu Chang, Ping-Fang Chiu
BACKGROUND: In Taiwan, Changhua County residents were exposed to high heavy metal pollution and exhibited high heavy metal levels in blood and urine. We examined associations between heavy metals in residential soil and renal outcomes of residents with chronic kidney disease (CKD). METHOD: From January 01, 2003 to June 30, 2015, we retrospectively identified CKD patients with an estimated glomerular filtration rate of <60 mL/min/1.73 m(2) at one tertiary care center...
June 20, 2017: Nephrology
https://www.readbyqxmd.com/read/28632198/community-response-to-multiple-sound-sources-integrating-acoustic-and-contextual-approaches-in-the-analysis
#17
Peter Lercher, Bert De Coensel, Luc Dekonink, Dick Botteldooren
Sufficient data refer to the relevant prevalence of sound exposure by mixed traffic sources in many nations. Furthermore, consideration of the potential effects of combined sound exposure is required in legal procedures such as environmental health impact assessments. Nevertheless, current practice still uses single exposure response functions. It is silently assumed that those standard exposure-response curves accommodate also for mixed exposures-although some evidence from experimental and field studies casts doubt on this practice...
June 20, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28631126/a-comparative-study-of-hospital-admissions-for-respiratory-diseases-during-normal-and-dusty-days-in-iran
#18
Sahar Geravandi, Pierre Sicard, Yusef Omidi Khaniabadi, Alessandra De Marco, Ali Ghomeishi, Gholamreza Goudarzi, Mohammad Mahboubi, Ahmad Reza Yari, Sina Dobaradaran, Ghasem Hassani, Mohammad Javad Mohammadi, Shahram Sadeghi
During the last century, most of people around the world moved from communicable to non-communicable diseases, mainly due to air pollution. Air pollutants and dust storm increase risk of morbidity, for cardiovascular and respiratory diseases, and increase the number of deaths. The city of Ahvaz is considered as the focal point of air pollution and dust storm in Iran. The aim of this study was to determine the number of Hospital Admission Respiratory Disease (HARD) including asthma attacks, acute bronchitis and chronic obstructive pulmonary disease attributed to PM10 by a descriptive study during normal and dust event days in Ahvaz during the time period 2010-2012...
June 19, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28631032/occurrence-and-fate-of-organic-and-organometallic-pollutants-in-municipal-wastewater-treatment-plants-and-their-impact-on-receiving-waters-adour-estuary-france
#19
J Cavalheiro, O Zuloaga, A Prieto, H Preudhomme, D Amouroux, M Monperrus
To achieve a "Good Environmental Status by 2015," as demanded by the water framework directive, monitoring programs are needed to furnish data on target compounds. In this study, a first evaluation of influents and main emissions of 3 local wastewater treatment plants (WWTP) in the Adour estuary (southwest of France) was performed for 23 pollutants (10 musk fragrances, 5 alkylphenols, and 8 organometallics), as well as receiving estuarine water from the same area. High frequency of occurrence of these compounds was found in influents samples (musks: 22-100%; alkylphenols 11-100%; organometallics 0-100%) and effluents (musks: 0-100%; alkylphenols 0-100%; organometallics 0-100%)...
June 19, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28629279/understanding-determinants-of-cardiovascular-health-in-a-mexican-american-community
#20
Karen A Larimer, Meg Gulanick, Sue Penckofer
Cardiovascular disease (CVD) is the leading cause of death in Hispanic Americans. Social and physical determinants of health unique to this community must be understood before interventions can be designed and implemented. This article describes a CVD risk assessment conducted in a primarily Mexican American community, using Healthy People 2020 as a model. Social (language, culture, awareness of CVD, and socio-economic status) and physical (presence and use of recreation areas, presence of grocery stores, public transportation, and environmental pollution) determinants of health as well as access to health services were assessed...
July 2017: Health Promotion Practice
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