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https://www.readbyqxmd.com/read/28089530/algae-mediated-removal-of-selected-pharmaceutical-and-personal-care-products-ppcps-from-lake-mead-water
#1
Xuelian Bai, Kumud Acharya
The persistence and fate of pharmaceutical and personal care products (PPCPs) in the Lake Mead ecosystem are particularly important considering the potential ecological risks and human health impacts. This study evaluated the removal of five common PPCPs (i.e., trimethoprim, sulfamethoxazole, carbamazepine, ciprofloxacin, and triclosan) from Lake Mead water mediated by the green alga Nannochloris sp. The results from the incubation studies showed that trimethoprim and carbamazepine were highly resistant to uptake in the algal cultural medium and were measured at approximately 90%-100% of the applied dose after 14days of incubation...
January 12, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28076771/screening-and-prioritization-of-micropollutants-in-wastewaters-from-on-site-sewage-treatment-facilities
#2
Meritxell Gros, Kristin M Blum, Henrik Jernstedt, Gunno Renman, Sara Rodríguez-Mozaz, Peter Haglund, Patrik L Andersson, Karin Wiberg, Lutz Ahrens
A comprehensive screening of micropollutants was performed in wastewaters from on-site sewage treatment facilities (OSSFs) and urban wastewater treatment plants (WWTPs) in Sweden. A suspect screening approach, using high resolution mass spectrometry, was developed and used in combination with target analysis. With this strategy, a total number of 79 micropollutants were successfully identified, which belong to the groups of per- and polyfluoroalkyl substances (PFASs), pesticides, phosphorus-containing flame retardants (PFRs) and pharmaceuticals and personal care products (PPCPs)...
December 30, 2016: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28073640/pharmaceuticals-in-a-temperate-forest-water-reuse-system
#3
Andrew D McEachran, Damian Shea, Elizabeth Guthrie Nichols
Forest-water reuse systems infiltrate municipal, industrial, and agricultural wastewaters through forest soils to shallow aquifers that ultimately discharge to surface waters. Their ability to mitigate regulated nutrients, metals, and organic chemicals is well known, but the fate of non-regulated chemicals in these systems is largely unstudied. This study quantified 33 pharmaceuticals and personal care products (PPCPs) in soils, groundwaters, and surface waters in a 2000-hectare forest that receives ~1200mm/year of secondary-treated, municipal wastewater in addition to natural rainfall (~1300mm/year)...
January 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28041695/influence-of-ppcps-on-the-performance-of-intermittently-operated-slow-sand-filters-for-household-water-purification
#4
Caroline M E Pompei, Lena Ciric, Melisa Canales, Kersti Karu, Eny M Vieira, Luiza C Campos
Removal of pharmaceuticals and personal care products (PPCPs) from drinking water is usually enhanced by advanced oxidation which is not affordable in low income countries. Slow sand filtration has been found to be capable of removing anti-inflammatory compounds, and its low maintenance costs and easy operation make it an attractive technology for treating drinking water in many parts of the world. In addition, slow sand filters can be used at both large and household scales. The biofilm (i.e. schmutzdecke) developed on the top of the sand and within the upper layers of the sand is acknowledged to be responsible for the water purification...
December 29, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/28012668/diclofenac-in-arabidopsis-cells-rapid-formation-of-conjugates
#5
Qiuguo Fu, Qingfu Ye, Jianbo Zhang, Jaben Richards, Dan Borchardt, Jay Gan
Pharmaceutical and personal care products (PPCPs) are continuously introduced into the soil-plant system, through practices such as agronomic use of reclaimed water and biosolids containing these trace contaminants. Plants may accumulate PPCPs from soil, serving as a conduit for human exposure. Metabolism likely controls the final accumulation of PPCPs in plants, but is in general poorly understood for emerging contaminants. In this study, we used diclofenac as a model compound, and employed (14)C tracing, and time-of-flight (TOF) and triple quadruple (QqQ) mass spectrometers to unravel its metabolism pathways in Arabidopsis thaliana cells...
December 21, 2016: Environmental Pollution
https://www.readbyqxmd.com/read/28008648/evaluating-the-effects-of-triclosan-on-three-field-crops-grown-in-four-formulations-of-biosolids
#6
René S Shahmohamadloo, Linda Lissemore, Ryan S Prosser, Paul K Sibley
A growing body of evidence suggests that amending soil with biosolids can be an integral component of sustainable agriculture. Despite strong evidence supporting its beneficial use in agriculture, there are concerns that chemicals, such as pharmaceuticals and personal care products (PPCPs), could present a risk to terrestrial ecosystems and human health. Triclosan (TCS) is one of the most commonly detected compounds in biosolids. To date, laboratory studies indicate that TCS likely poses a de minimis risk to field crops; however, these studies were either conducted under unrealistic exposure conditions or only assessed one or two formulations of biosolids...
December 23, 2016: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/27931386/fate-of-environmental-pollutants
#7
Lokesh P Padhye
This annual review covers the literature published in 2015 on topics related to the occurrence and fate of emerging environmental pollutants in wastewater. Due to the vast amount of literature published on this topic, I have discussed only a fraction of the quality research publications, up to maximum 20 relevant articles per section, due to limitation of space. The abstract search was carried out using Web of Science, and the abstracts were selected based on their relevance. In few cases, full-text articles were referred to better understand new findings...
October 2016: Water Environment Research: a Research Publication of the Water Environment Federation
https://www.readbyqxmd.com/read/27836351/characterizing-pharmaceutical-personal-care-product-and-hormone-contamination-in-a-karst-aquifer-of-southwestern-illinois-usa-using-water-quality-and-stream-flow-parameters
#8
L K Dodgen, W R Kelly, S V Panno, S J Taylor, D L Armstrong, K N Wiles, Y Zhang, W Zheng
Karst aquifers are drinking water sources for 25% of the global population. However, the unique geology of karst areas facilitates rapid transfer of surficial chemicals to groundwater, potentially contaminating drinking water. Contamination of karst aquifers by nitrate, chloride, and bacteria have been previously observed, but little knowledge is available on the presence of contaminants of emerging concern (CECs), such as pharmaceuticals. Over a 17-month period, 58 water samples were collected from 13 sites in the Salem Plateau, a karst region in southwestern Illinois, United States...
February 1, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/27810576/effects-of-pharmaceuticals-and-personal-care-products-ppcps-on-multixenobiotic-resistance-mxr-related-efflux-transporter-activity-in-zebrafish-danio-rerio-embryos
#9
V Cunha, K Burkhardt-Medicke, P Wellner, M M Santos, P Moradas-Ferreira, T Luckenbach, M Ferreira
Certain ATP binding cassette (ABC) transporter proteins, such as zebrafish Abcb4, are efflux pumps acting as a cellular defence against a wide range of different, potentially toxic chemical compounds thus mediating so called multixenobiotic resistance (MXR). Certain chemicals target MXR proteins and, as so called chemosensitisers, inhibit the activity of these proteins thus increasing the toxicity of other chemicals that would normally be effluxed. In this study 14 pharmaceuticals and personal care products (PPCPs) that are being increasingly detected in aquatic systems, were assessed for interference with the MXR system of zebrafish (Danio rerio)...
February 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/27807790/magnetic-cobalt-ferrite-composite-as-an-efficient-catalyst-for-photocatalytic-oxidation-of-carbamazepine
#10
Yongzhen He, Chaomeng Dai, Xuefei Zhou
A magnetic spinel cobalt ferrite nanoparticle composite (CFO) was prepared via an ultrasonication-assisted co-precipitation method. The morphological structure and surface composition of CFO before and after reaction were investigated by using X-ray diffraction, scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray, and Fourier transform infrared spectroscopy, indicating the consumption of iron oxide during photodegradation. X-ray photoelectron spectroscopy and vibrating sample magnetometry confirm the preparation of the ferrite nanoparticle composite and its magnetic properties...
November 3, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27775436/ecotoxicity-interspecies-qaar-models-from-daphnia-toxicity-of-pharmaceuticals-and-personal-care-products
#11
A Sangion, P Gramatica
Pharmaceutical and Personal Care Products (PPCPs) became a class of contaminants of emerging concern because are ubiquitously detected in surface water and soil, where they can affect wildlife. Ecotoxicological data are only available for a few PPCPs, thus modelling approaches are essential tools to maximize the information contained in the existing data. In silico methods may be helpful in filling data gaps for the toxicity of PPCPs towards various ecological indicator organisms. The good correlation between toxicity toward Daphnia magna and those on two fish species (Pimephales promelas and Oncorhynchus mykiss), improved by the addition of one theoretical molecular descriptor, allowed us to develop predictive models to investigate the relationship between toxicities in different species...
October 2016: SAR and QSAR in Environmental Research
https://www.readbyqxmd.com/read/27750166/mass-loading-and-removal-of-pharmaceuticals-and-personal-care-products-including-psychoactives-antihypertensives-and-antibiotics-in-two-sewage-treatment-plants-in-southern-india
#12
Bikram Subedi, Keshava Balakrishna, Derrick Ian Joshua, Kurunthachalam Kannan
Environmental contamination by pharmaceuticals and personal care products (PPCPs) is barely studied in India despite being one of the largest global producers and consumers of pharmaceuticals. In this study, 29 pharmaceuticals and six metabolites were determined in sewage treatment plants (STPs) in Udupi (STPU: population served ∼150,000) and Mangalore (STPM: population served ∼450,000); the measured mean concentrations ranged from 12 to 61,000 ng/L and 5.0 to 31,000 ng/L, respectively. Atorvastatin (the most prescribed antihypercholesterolemic in India), mefenamic acid, and paraxanthine were found for the first time in wastewater in India at the mean concentrations of 395 ng/L, 1100 ng/L, and 13,000 ng/L, respectively...
January 2017: Chemosphere
https://www.readbyqxmd.com/read/27734948/colloid-mediated-transport-of-pharmaceutical-and-personal-care-products-through-porous-media
#13
Yingna Xing, Xijuan Chen, Xin Chen, Jie Zhuang
Pharmaceutical and personal care products (PPCPs) enter soils through reclaimed water irrigation and biosolid land applications. Colloids, such as clays, that are present in soil may interact with PPCPs and thus affect their fate and transport in the subsurface environment. This study addresses the influence of soil colloids on the sorption and transport behaviors of PPCPs through laboratory column experiments. Results show that the affinities of PPCPs for colloids vary with their molecular chemistry and solution ionic strength...
October 13, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27695005/adsorptive-removal-of-pharmaceuticals-and-personal-care-products-from-water-with-functionalized-metal-organic-frameworks-remarkable-adsorbents-with-hydrogen-bonding-abilities
#14
Pill Won Seo, Biswa Nath Bhadra, Imteaz Ahmed, Nazmul Abedin Khan, Sung Hwa Jhung
Adsorption of typical pharmaceuticals and personal care products (PPCPs) (such as naproxen, ibuprofen and oxybenzone) from aqueous solutions was studied by using the highly porous metal-organic framework (MOF) MIL-101 with and without functionalization. Adsorption results showed that MIL-101s with H-donor functional groups such as -OH and -NH2 were very effective for naproxen adsorption, despite a decrease in porosity, probably because of H-bonding between O atoms on naproxen and H atoms on the adsorbent. For this reason, MIL-101 with two functional groups capable of H-bonding (MIL-101-(OH)2) exhibited remarkable adsorption capacity based on adsorbent surface area...
October 3, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27692886/uptake-and-subcellular-distribution-of-triclosan-in-typical-hydrophytes-under-hydroponic-conditions
#15
Yupeng He, Enguang Nie, Chengming Li, Qingfu Ye, Haiyan Wang
The increasing discharge of pharmaceuticals and personal care products (PPCPs) into the environment has generated serious public concern. The recent awareness of the environmental impact of this emerging class of pollutants and their potential adverse effects on human health have been documented in many reports. However, information regarding uptake and intracellular distribution of PPCPs in hydrophytes under hydroponic conditions, and potential human exposure is very limited. A laboratory experiment was conducted using (14)C-labeled triclosan (TCS) to investigate uptake and distribution of TCS in six aquatic plants (water spinach, purple perilla, cress, penny grass, cane shoot, and rice), and the subcellular distribution of (14)C-TCS was determined in these plants...
January 2017: Environmental Pollution
https://www.readbyqxmd.com/read/27620105/fate-of-environmental-pollutants
#16
Lokesh P Padhye
This annual review covers the literature published in 2015 on topics related to the occurrence and fate of emerging environmental pollutants in wastewater. Due to the vast amount of literature published on this topic, I have discussed only a fraction of the quality research publications, up to maximum 20 relevant articles per section, due to limitation of space. The abstract search was carried out using Web of Science, and the abstracts were selected based on their relevance. In few cases, full-text articles were referred to better understand new findings...
October 2016: Water Environment Research: a Research Publication of the Water Environment Federation
https://www.readbyqxmd.com/read/27617334/effects-of-pharmaceuticals-and-personal-care-products-on-marine-organisms-from-single-species-studies-to-an-ecosystem-based-approach
#17
Emma Prichard, Elise F Granek
Pharmaceuticals and personal care products (PPCPs) are contaminants of emerging concern that are increasing in use and have demonstrated negative effects on aquatic organisms. There is a growing body of literature reporting the effects of PPCPs on freshwater organisms, but studies on the effects of PPCPs to marine and estuarine organisms are limited. Among effect studies, the vast majority examines subcellular or cellular effects, with far fewer studies examining organismal- and community-level effects. We reviewed the current published literature on marine and estuarine algae, invertebrates, fish, and mammals exposed to PPCPs, in order to expand upon current reviews...
September 12, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27610223/metagenomic-analysis-of-an-ecological-wastewater-treatment-plant-s-microbial-communities-and-their-potential-to-metabolize-pharmaceuticals
#18
Ian N Balcom, Heather Driscoll, James Vincent, Meagan Leduc
Pharmaceuticals and other micropollutants have been detected in drinking water, groundwater, surface water, and soil around the world. Even in locations where wastewater treatment is required, they can be found in drinking water wells, municipal water supplies, and agricultural soils. It is clear conventional wastewater treatment technologies are not meeting the challenge of the mounting pressures on global freshwater supplies. Cost-effective ecological wastewater treatment technologies have been developed in response...
2016: F1000Research
https://www.readbyqxmd.com/read/27607932/application-of-nanoscale-zero-valent-iron-and-iron-powder-during-sludge-anaerobic-digestion-impact-on-methane-yield-and-pharmaceutical-and-personal-care-products-degradation
#19
Fidèle Suanon, Qian Sun, Mingyue Li, Xiang Cai, Youchi Zhang, Yijun Yan, Chang-Ping Yu
Lab scale and single stage high solid anaerobic digestion of sewage sludge spiked with freshly synthesized nanoscale zero valent iron (nZVI) and commercial iron powder (IP) under mesophilic condition (37±1°C) was performed. The effects of both additives on methane yield, and pharmaceutical and personal care product (PPCP) removal were investigated. Results showed that methane yield was increased by 25.2% and 40.8% in the presence of nZVI (0.1%) and IP (1.6%), respectively. Removal efficiencies of chemical oxygen demand were 54...
August 31, 2016: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/27598698/a-pilot-plant-study-using-conventional-and-advanced-water-treatment-processes-evaluating-removal-efficiency-of-indicator-compounds-representative-of-pharmaceuticals-and-personal-care-products
#20
Shuangyi Zhang, Stephen Gitungo, Lisa Axe, John E Dyksen, Robert F Raczko
With widespread occurrence of pharmaceuticals and personal care products (PPCPs) in the water cycle, their presence in source water has led to the need to better understand their treatability and removal efficiency in treatment processes. Fifteen indicator compounds were identified to represent the large number of PPCPs reported worldwide. Criteria applied to determine the indicator compounds included PPCPs widely used, observed at great frequency in aqueous systems, resistant to treatment, persistent in the environment, and representative of classes of organics...
November 15, 2016: Water Research
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