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Fish Physiol Biochem 2018 Dec 8. Epub 2018 Dec 8.

Biochemical Adaptation Laboratory, Department of Zoology, North-Eastern Hill University, Shillong, 793022, India.

Nitric oxide (NO) is an important signalling molecule that plays diverse physiological functions in several vertebrates including that of adaptation to various stressful stimuli. The air-breathing magur catfish (Clarias magur) is known to tolerate a very high external ammonia (HEA) stress in its natural habitats. We report here the possible induction of inducible nitric oxide (inos) gene and more generation of NO in magur catfish exposed to HEA. Read More

Aquat Toxicol 2018 Nov 30;207:72-82. Epub 2018 Nov 30.

Department of Aquaculture and Fisheries, University of Arkansas at Pine Bluff, 1200 North University Drive, Pine Bluff, 71601, AR, USA. Electronic address:

Waterborne ammonia is an environmental pollutant that is toxic to all aquatic animals. However, ammonia induced toxicity as well as compensatory mechanisms to defend against high environmental ammonia (HEA) are not well documented at present for largemouth bass (Micropterus salmoides), a high value fish for culture and sport fisheries in the United States. To provide primary information on the sensitivity of this species to ammonia toxicity, a 96 h-LC test was conducted. Read More

Waste Manag 2018 Dec 30;82:276-284. Epub 2018 Oct 30.

Department of Environmental Engineering, Democritus University of Thrace, Xanthi, Greece. Electronic address:

Poultry manure (PM) can contain ammonium and ammonia nitrogen, which may inhibit the anaerobic process. The aim of this work was to evaluate the performance of anaerobic digestion of PM co-digested with fruit and vegetable waste. Two semi-continuous bench scale (19L) stirred tank reactors were used. Read More

Waste Manag 2018 Dec 28;82:231-240. Epub 2018 Oct 28.

Department of Science, Waterford Institute of Technology, Waterford, Ireland.

Extremely high volatile fatty acids (VFAs) and ammonia concentrations can accumulate during dry co-digestion of organic wastes, which may inactivate pathogenic microorganisms. In this study, inactivation of Salmonella during dry co-digestion of pig manure (PM) and food waste (FW), which are both reservoirs of zoonotic pathogens, was examined. The effects of pH, VFAs, ammonia and their interactions were assessed on three inoculated Salmonella serotypes. Read More

Arch Toxicol 2018 Nov 22. Epub 2018 Nov 22.

Dept. Food Safety, German Federal Institute for Risk Assessment, Max-Dohrn-Str. 8-10, 10589, Berlin, Germany.

The antihistaminic drug methapyrilene was withdrawn from the market in 1979 because of hepatocarcinogenicity in rats. Since then, the drug has been used as a model hepatotoxin especially for transcriptomic analyses using material from in vivo studies. Much less transcriptomics data are available from in vitro studies, and no studies have investigated proteomic effects of methapyrilene in vitro. Read More

Waste Manag 2018 Oct 25;80:339-348. Epub 2018 Sep 25.

School of Chemistry, Federal University of Rio de Janeiro. 149 Athos da Silveira Ramos Avenue, Room E206, 21941-909 Rio de Janeiro, RJ, Brazil.

Combined treatment of urban solid waste leachate and domestic sewage has emerged in Brazil and worldwide as an alternative to minimize the difficulties of treating landfill leachate. Landfill leachate is a complex matrix of organic and inorganic substances, recalcitrant material and xenobiotic organic compounds that are considered to be highly toxic, as well as endocrine disrupting compounds (EDC) that contribute to increased estrogenic activity. Although combined treatment is feasible for removal of organic matter, ammonia and toxicity, the efficiency of the removal of estrogenic substance is poorly investigated. Read More

Waste Manag 2018 Oct 17;80:218-223. Epub 2018 Sep 17.

School of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea. Electronic address:

This work evaluated the toxicity of ammonia toward mesophilic methanogenic microflora, with respect to the acclimation and pH. Microflora acclimated to total ammonia nitrogen (TAN) concentrations of 1.0-2. Read More

Bioresour Technol 2018 Nov 7;273:203-211. Epub 2018 Nov 7.

MOE Biomass Energy Research Center and College of Food Science and Technology and State Key Laboratory of Food Science and Technology, Nanchang University, 235 East Nanjing Road, Nanchang, Jiangxi 330047, People's Republic of China; Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Avenue, St. Paul, MN 55108, United States.

Ammonia toxicity is a major disadvantage of microalgal growth when high-strength ammonium wastewaters like manure-free piggery wastewater (MFPW) were used as microalgal growth medium. In the present study, the effect of ammonium concentration, carbon/nitrogen ratio, and pH on ammonia toxicity of Chlorella vulgaris cultivated in the MFPW and nutrients removal was investigated. The three important parameters affected ammonia toxicity of C. Read More

Environ Toxicol Chem 2018 Nov 17. Epub 2018 Nov 17.

Environmental Research Institute of the Supervising Scientist, Australian Government Department of the Environment and Energy, Darwin, NT, Australia.

The chronic toxicity of ammonia to tropical freshwater species is under-represented, leading to the use of temperate species to derive water quality guideline values (GV) for tropical regions. Such practices may lead to under-protective GVs due to differences in toxicities observed between tropical and temperate species. Additionally, there are limited studies assessing the toxicity of ammonia in low ionic strength waters, which may also result in higher toxicity. Read More

Conf Proc IEEE Eng Med Biol Soc 2018 Jul;2018:4209-4212

Recirculating Aquaculture Systems (RAS) present an innovative, clean and practical way of producing fish intensively. Stress caused by high concentrations of chemical species such as nitrite and un-ionized ammonia, affects fish health and growth and therefore the sustainability of RAS would require an online monitoring for those chemical stressors. This work reveals a study on the suitability of Aliivibrio fischeri as a toxicity sensor for un-ionized ammonia and nitrite. Read More

Life Sci 2018 Dec 1;215:11-21. Epub 2018 Nov 1.

Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt. Electronic address:

Aims: Hepatic encephalopathy (HE) is a complex neuropsychiatric syndrome. Paracetamol (APAP) causes, in high doses, a hepatic injury. Alogliptin (ALO), with its 100% oral bioavailability, may be able to reverse the acute hepatic injury and memory impairments. Read More

J Vet Res 2018 Jun 24;62(2):183-191. Epub 2018 Oct 24.

Department of Hygiene of Animal Feedingstuffs, National Veterinary Research Institute, 24-100 Pulawy, Poland.

Introduction: Pyrrolizidine alkaloids (PAs) are secondary metabolites produced by many plant species. Due to their toxicity PAs can pose a risk to human and animal health. To detect the toxic compounds in feed materials a sensitive method based on liquid chromatography coupled with mass spectrometry has been developed. Read More

Mol Biol Rep 2018 Oct 23. Epub 2018 Oct 23.

Programa de Pós-Graduação em Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.

This work investigated the preventive effect of diphenyl diselenide [(PhSe)] against the toxic effects of mercury in silver catfish (Rhamdia quelen). The animals were treated during 30 consecutive days with a (PhSe) supplemented feed (3.0 mg kg) or commercial feed. Read More

J Environ Sci (China) 2018 Dec 7;74:19-31. Epub 2018 Feb 7.

Earth System Science and Technology, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen Kasuga, Fukuoka, 816-8580, Japan.

Nowadays, trends in wastewater treatment by zero-valent iron (ZVI) were turned to use bimetallic NZVI particles by planting another metal onto the ZVI surface to increase its reactivity. Nano size zero-valent iron/copper (NZVI/Cu) bimetallic particles were synthesized in order to examine its toxicity effects on the wastewater microbial life, kinetics of phosphorus, ammonia stripping and the reduction of chemical oxygen demand (COD). Various concentrations of NZVI/Cu and operation conditions both aerobic and anaerobic were investigated and compared with pure NZVI experiment. Read More

Bioresour Technol 2019 Jan 26;272:54-62. Epub 2018 Sep 26.

Department of Environmental Engineering, Technical University of Denmark, Bygningstorvet Bygning 115, DK-2800 Kgs. Lyngby, Denmark.

Different mesophilic and thermophilic methanogenic consortia were acclimatised and enriched to extreme total ammonia (9.0 and 5.0 g NH-N L, respectively) and free ammonia (1. Read More

Toxicol Lett 2018 Dec 9;299:191-200. Epub 2018 Oct 9.

Department of Biochemistry, Maringá University, 87020900 Maringá, Brazil. Electronic address:

A study of the effects of butylated hydroxyanisole (BHA) on the hepatic metabolism was conducted with emphasis on parameters linked to energy metabolism and mitochondrial reactive oxygen species production. The experimental systems were the isolated perfused rat liver and isolated mitochondria. It was found that BHA inhibits biosynthetic pathways (gluconeogenesis) and ammonia detoxification, which are dependent on ATP generated within the mitochondria. Read More

Comp Biochem Physiol A Mol Integr Physiol 2019 Jan 5;227:92-99. Epub 2018 Oct 5.

Department of Biology, Pomona College, 175 West 6th Street, Claremont, CA 91711, USA. Electronic address:

Marsupial embryos of Armadillidium vulgare (Isopoda: Oniscidea) were collected at different stages of development and assayed for products of nitrogen excretion. Stages were classified as early stage one, late stage one (clear embryo and somite differentiation), early stage two (chorion shed, prior to blastokinesis), late stage two (following blastokinesis), and mancae (vitelline membrane shed; second embryonic molt). Stage one and stage two embryos were primarily ammonotelic. Read More

Chemosphere 2019 Jan 28;214:719-728. Epub 2018 Sep 28.

Division of Marine and Environmental Research, Rudjer Boskovic Institute, Bijenicka 54, 10000, Zagreb, Croatia. Electronic address:

The biotransformation study of difficult-to-degrade opioid analgesic methadone (MTHD) was performed by activated sludge culture adapted to high concentration of methadone (10 mg/L). The study included determination of elimination kinetics of the parent compound, taxonomic characterization of microbial culture, identification of biotransformation products (TPs) and assessment of ecotoxicological effects of biotransformation processes. The chemical analyses were performed by ultra-performance liquid chromatography/quadrupole-time-of-flight mass spectrometry, whereas the ecotoxicological assessment was made based on determinations of toxicity to freshwater algae. Read More

Sci Total Environ 2019 Feb 27;650(Pt 2):1779-1786. Epub 2018 Sep 27.

Programa de Ecofisiología Aplicada, Instituto de Ecología y Desarrollo Sustentable (PRODEA-INEDES-CONICET), Universidad Nacional de Lujan (UNLu), PO Box 221, B6700ZBA Luján, Argentina. Electronic address:

In the field of aquatic ecotoxicology, indexes obtained from a battery of biomarkers have proved to be a useful tool for assessing quantifiable and integrated health responses of organisms exposed to pollutants. The objective of this work was to evaluate the effects of exposure to the Reconquista River water (RR) on adults of Cnesterodon decemmaculatus using different integrated indexes. We conducted a 12-d laboratory assay involving the exposure of fish to RR, a negative control (moderately hard water - MHW medium), and a positive control (for genotoxicity with MHW + Cyclophosphamide, CP). Read More

Ecotoxicol Environ Saf 2018 Dec 25;166:123-131. Epub 2018 Sep 25.

Plataforma Solar de Almería-CIEMAT, Carretera de Senés Km 4, 04200 Tabernas, Almería, Spain; CIESOL, Joint Centre of the University of Almería-CIEMAT, 04120 Almería, Spain.

In cork industry, the operation of boiling raw cork generates large volumes of wastewater named Cork Boiling Wastewater (CBW). The main characteristics are the low biodegradability and medium to low acute toxicity, resulting in the necessity of designing advanced biological treatments by possible conventional activated sludge adaptation. In order to evaluate the variation of bacterial population along that process, a study based on optical microscopy, plate count, DNA extraction, qPCR and massive sequencing techniques was performed. Read More

Genomics 2018 11 24;110(6):404-413. Epub 2018 Sep 24.

Shenzhen Key Lab of Marine Genomics, Guangdong Provincial Key Lab of Molecular Breeding in Marine Economic Animals, BGI Academy of Marine Sciences, BGI Marine, BGI, Shenzhen, China; BGI Zhenjiang Institute of Hydrobiology, Zhenjiang, China; Laboratory of Aquatic Genomics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China. Electronic address:

Mudskippers are typical amphibious fishes and possess various strategies to ameliorate ammonia toxicity during exposure to environmental ammonia. The present study aimed to provide transcriptomic evidence through profiling the gill and liver transcriptomes of Boleophthalmus pectinirostris (BP) and Periophthalmus magnuspinnatus (PM), which were subjected to treatment with high environmental ammonia for up to 72 h. The results of gene function annotation showed that most of the differentially expressed genes were involved in metabolic pathways. Read More

J Clean Prod 2018 Sep;196:1188-1197

School of Environment, Tsinghua University, Beijing, 100084, PR China.

The rich content of nutrients in human waste provides an outlook for turning it from pollutants to potential resources. The pilot-scale resource-oriented toilet with forward osmosis technology was demonstrated to have advantages to recover clean water, nitrogen, phosphorus, potassium, biogas, and heat from urine and feces. For the possibility of further full-scale implementation in different scenarios, six resource-oriented toilet systems and one conventional toilet system were designed in this study. Read More

Ecotoxicol Environ Saf 2018 Dec 21;166:56-62. Epub 2018 Sep 21.

Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China.

Textile dyeing wastewater was the focus of much research because of its adverse effect on aquatic biota. In the present research, textile dyeing influent and effluent samples were collected from four textile dyeing wastewater treatment plants (TDPs) in Guangdong province, China, and their conventional indicators and toxicity were examined to reveal relationships. The relationship between toxicity and chemical oxygen demand (COD) was clearly established at individual TDPs. Read More

Environ Sci Eur 2018 31;30(1):31. Epub 2018 Aug 31.

Department of Soil Science, Faculty of Regional and Environmental Science, University of Trier, Campus II, Behringstraße 21, 54296 Trier, Germany.

Background: The growing production and use of engineered AgNP in industry and private households make increasing concentrations of AgNP in the environment unavoidable. Although we already know the harmful effects of AgNP on pivotal bacterial driven soil functions, information about the impact of silver nanoparticles (AgNP) on the soil bacterial community structure is rare. Hence, the aim of this study was to reveal the long-term effects of AgNP on major soil bacterial phyla in a loamy soil. Read More

Science 2018 Sep;361(6407):1060-1063

Salt Lake City.

Fish Shellfish Immunol 2018 Dec 8;83:162-170. Epub 2018 Sep 8.

South China Sea Resource Exploitation and Protection Collaborative Innovation Center (SCS-REPIC)/School of Marine Sciences, Sun Yat-sen University, Guangzhou, China; South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, Guangzhou, China. Electronic address:

Ammonia is a major aquatic environmental pollutant that negatively impacts shrimp health and commercial productivity. However, we currently do not fully understand the underlying molecular mechanisms of ammonia stress in shrimp. We therefore performed transcriptomic analysis of hepatopancreas from black tiger shrimp (Penaeus monodon) treated with ammonia-stress. Read More

Environ Toxicol Chem 2018 Dec 15;37(12):3077-3085. Epub 2018 Nov 15.

Frankfort Field Office, US Fish and Wildlife Service, Frankfort, Kentucky, USA.

Unionid mussels are ecologically important and are globally imperiled. Toxicants contribute to mussel declines, and toxicity tests using juvenile mussels-a sensitive life stage-are valuable in determining thresholds used to set water quality criteria. In vitro culture methods provide an efficient way to propagate juveniles for toxicity testing, but their relative chemical sensitivity compared with in vivo propagated juveniles is unknown. Read More

Sci Total Environ 2019 Feb 3;650(Pt 1):18-26. Epub 2018 Sep 3.

Metropolitan Water Reclamation District, Chicago, IL 60611, United States of America.

Information on bioavailability of two antibiotic TOrCs, ciprofloxacin (CIP) and azithromycin (AZ), to terrestrial organisms is severely limited, especially in the biosolids context. Responses of two terrestrial organisms, earthworms and microbes, to a range of environmentally relevant concentrations of biosolids-borne CIP and AZ were assessed in laboratory incubation studies involving H-labeled compounds. Earthworm assessments were based on the Earthworm Sub-chronic Toxicity Test (OCSPP 850. Read More

Appl Environ Microbiol 2018 Sep 7. Epub 2018 Sep 7.

Universita Cattolica del Sacro Cuore, Department for Sustainable Food Process, Piacenza 29122, Italy

Pesticides are key stressors of soil microorganisms with reciprocal effects on ecosystem functioning. These effects have been mainly attributed to the parent compounds, while the impact of their transformation products (TPs) has been largely overlooked. We assessed, in a meadow soil (A),the transformation of iprodione and its toxicity on the (i) abundance of functional microbial groups, (ii) activity of key microbial enzymes and (iii) diversity of bacteria, fungi and ammonia-oxidizing microorganisms (AOM) using amplicon sequencing. Read More

Acta Histochem 2018 Oct 2;120(7):680-690. Epub 2018 Sep 2.

Natural Sciences and Science Education, National Institute of Education, Nanyang Technological University, 1 Nanyang Walk, Singapore 637616, Republic of Singapore.

During water-land transition, ancient fishes acquired the ability to breathe air, but air-breathing engendered problems in nitrogenous waste excretion. Nitrogen is a fundamental component of amino acids, proteins, and nucleic acids, and the degradation of these nitrogen-containing compounds releases ammonia. Ammonia is toxic and must be removed. Read More

Am J Infect Control 2018 Aug 29. Epub 2018 Aug 29.

University of California San Francisco Division of Occupational and Environmental Medicine, San Francisco, CA; Western States Pediatric Environmental Health Specialty Unit-University of California San Francisco, San Francisco, CA.

Background: Children in child care settings have a high infectious burden. They are frequently exposed to sanitizing and disinfecting agents, whose toxicities have not been studied in these settings. Current guidance on the preferred disinfection agents for child care is vague. Read More

Sensors (Basel) 2018 Aug 29;18(9). Epub 2018 Aug 29.

Centre for Environmental Radioactivity (CERAD CoE), Norwegian University of Life Sciences (NMBU), Faculty of Environmental Sciences and Natural Resource Management, P.O. Box 5003, NO-1432 Ås, Norway.

A novel toxicity-warning sensor for water quality monitoring in recirculating aquaculture systems (RAS) is presented. The design of the sensor system mainly comprises a whole-cell biosensor. , a luminescent bacterium widely used in toxicity analysis, was tested for a mixture of known fish-health stressors, namely nitrite, un-ionized ammonia, copper, aluminum and zinc. Read More

Environ Microbiol 2018 Aug 22. Epub 2018 Aug 22.

Department of Biological Sciences, University of Alabama, Tuscaloosa, AL, 35487, USA.

Marine oil spills are catastrophic events that cause massive damage to ecosystems at all trophic levels. While most of the research has focused on carbon-degrading microorganisms, the potential impacts of hydrocarbons on microbes responsible for nitrification have received far less attention. Nitrifiers are sensitive to hydrocarbon toxicity: ammonia-oxidizing bacteria and archaea being 100 and 1000 times more sensitive than typical heterotrophs respectively. Read More

J Neuroinflammation 2018 Aug 22;15(1):234. Epub 2018 Aug 22.

Department of Infectious Diseases, The First Affiliated Hospital of China Medical University, 155 Nanjing North Street, Shenyang, 110001, Liaoning Province, People's Republic of China.

Background: Ammonia and tumor necrosis factor-alpha (TNF-α) play important roles in the mechanisms of hepatic encephalopathy (HE). Rhesus glycoprotein C (Rhcg) is important for ammonia transport especially in the kidney. The aim of the present study was to investigate the role of Rhcg in the brain in acute liver failure (ALF) and the effect of TNF-α on Rhcg expression. Read More

Water Res 2018 11 31;145:103-112. Epub 2018 Jul 31.

State Key Laboratory of Pollution Control and Resources Reuse, National Centre for International Research of Sustainable Urban Water System, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China.

Haloacetamides (HAMs), an emerging class of disinfection by-products, have received increasing attention due to their elevated cyto- and genotoxicity. However, only limited information is available regarding the iodinated analogues. This study investigated the formation and speciation of iodinated haloacetamides (I-HAMs) and their chlorinated/brominated analogues during the chloramination of bromide and/or iodide-containing waters and a model compound solution over various time periods. Read More

Cell Physiol Biochem 2018 15;48(5):2189-2204. Epub 2018 Aug 15.

Tytgat Institute for Liver and Intestinal Research, Academic Medical Center (AMC), Amsterdam, the Netherlands.

Background/aims: For applicability of cell-based therapies aimed at the treatment of liver failure, such as bioartificial livers (BALs) and hepatocyte transplantation, it is essential that the applied hepatocytes tolerate exposure to the patient plasma. However, plasma from both healthy donors and acute liver failure (ALF) patients is detrimental to hepatocytes and hepatic cell lines, such as HepaRG. We aimed to elucidate the underlying mechanisms of plasma-induced toxicity against HepaRG cells in order to ultimately develop methods to reduce this toxicity and render HepaRG-BAL treatment more effective. Read More

Comp Biochem Physiol C Toxicol Pharmacol 2018 Nov 11;213:55-61. Epub 2018 Aug 11.

School of Marine Sciences, Ningbo University, Ningbo 315211, China.

Triplicate groups of juvenile yellow catfish (1.98 ± 0.01 g) were fed diets supplemented with 0% and 1% alanyl-glutamine dipeptide (AGD) for 56 days under three ammonia concentrations (0. Read More

Food Chem 2018 Dec 5;269:503-510. Epub 2018 Jul 5.

School of Biomedical Sciences, Faculty of Health Science, Universiti Kebangsaan Malaysia, 43650 Bandar Baru Bangi Selangor Darul Ehsan, Malaysia. Electronic address:

The presence of carcinogens in food is a major food safety concern. A nanocomposite-based electrochemical DNA biosensor was constructed for potential carcinogen detection in food samples by immobilizing amine terminated single stranded DNA onto silica nanospheres deposited onto a screen-printed electrode modified using gold nanoparticles. The effect of three different DNA sequences: 15-base guanine, 24-base guanine and 24-base adenine-thymine rich DNA on carcinogen (formaldehyde and acrylamide) detection was evaluated. Read More

J Adv Res 2018 Sep 26;13:39-50. Epub 2018 Feb 26.

Institute of Veterinary Physiology, Freie Universität Berlin, Oertzenweg 19b, 14163 Berlin, Germany.

Urea in diets of ruminants has been investigated to substitute expensive animal and vegetable protein sources for more than a century, and has been widely incorporated in diets of ruminants for many years. Urea is also recycled to the fermentative parts of the gastrointestinal (GI) tracts through saliva or direct secretory flux from blood depending upon the dietary situations. Within the GI tracts, urea is hydrolyzed to ammonia by urease enzymes produced by GI microorganisms and subsequent ammonia utilization serves the synthesis of microbial protein. Read More

Int J Environ Res Public Health 2018 07 28;15(8). Epub 2018 Jul 28.

Department of Health Science, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Korea.

Unlike other countries, the Korean chemical industry does not clearly distinguish between industrial sites and residential areas. The 2012 Gumi Hydrogen Fluoride Accident revealed that chemical accidents could cause damage to nearby residents. Accordingly, the Chemicals Control Act was enacted in 2015, which requested industrial sites using chemicals to perform a risk assessment for all chemical facilities and to distribute the results to the local residents and governments. Read More

Chemosphere 2018 Nov 19;210:762-768. Epub 2018 Jul 19.

College of Resources and Environment, Shandong Agricultural University, Key Laboratory of Agricultural Environment in Universities of Shandong, National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Taian, 271018, China. Electronic address:

Ionic liquids (ILs) were widely applied because of their excellent properties. The present investigation studied the toxicity of the IL 1-octyl-3-methylimidazolium hexafluorophosphate ([Omim]PF) to the soil microbial population and community diversity with dose (1.0, 2. Read More

Water Res 2018 10 31;143:579-588. Epub 2018 May 31.

Department of Civil and Environmental Engineering, Stanford University, 473 Via Ortega, Stanford, CA 94305, United States. Electronic address:

Treatment of fully nitrified municipal wastewater effluents with chlorine followed by chloramines (i.e., sequential chlorine disinfection) upstream of advanced treatment trains can contribute pathogen inactivation credits for potable reuse while leaving a chloramine residual to control biofouling on membrane units in the advanced treatment train. Read More

ACS Cent Sci 2018 Jun 6;4(6):748-754. Epub 2018 Jun 6.

Key Laboratory of Polyoxometalate Science of Ministry of Education, Northeast Normal University, Changchun 130024, P. R. China.

Ammonia (NH) is a commonly used industrial gas, but its corrosiveness and toxicity are hazardous to human health. Although many adsorbents have been investigated for NH sorption, limited ammonia uptake remains an urgent issue yet to be solved. In this article, a series of multivariate covalent organic frameworks (COFs) are explored which are densely functionalized with various active groups, such as -N-H, -C=O, and carboxyl group. Read More

Front Plant Sci 2018 19;9:772. Epub 2018 Jun 19.

Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of Allahabad, Allahabad, India.

In the present study, the role of sulfur (KSO: S; 60 mg S kg sand) and/or calcium (CaCl: Ca; 250 mg Ca kg sand) applied alone as well as in combination on growth, photosynthetic performance, indices of chlorophyll fluorescence, nitrogen metabolism, and protein and carbohydrate contents of Indian mustard ( L.) seedlings in the absence and presence of arsenic (NaHAsO.7HO: As; 15 mg As kg sand and As; 30 mg As kg sand) stress was analyzed. Read More

Huan Jing Ke Xue 2017 Sep;38(9):3807-3815

School of Environment and Energy, South China University of Technology, Guangzhou 510006, China.

Coking wastewater is a typical industrial wastewater with high toxicity. Its treatment with biological processes is often challenging because it contains constituents inhibiting microbial activity. To study the inhibitory effect and possible acclimation of microbes in coking wastewater treatment, municipal sludge was inoculated into coking wastewater. Read More

Huan Jing Ke Xue 2017 Oct;38(10):4253-4261

State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China.

The water hyacinth, , is widely used for the ecological restoration of eutrophic freshwater bodies, but little is known about its microbial interactions and nitrogen removal potential. In this study, we compared the relative importance of and bacteria in nitrogen removal. We also examined the plant's ability to modulate the abundance and diversity of nitrifying and denitrifying bacteria. Read More

Chemosphere 2018 Oct 19;209:767-775. Epub 2018 Jun 19.

Department of Environment and Geography, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada; Escuela de Química, Instituto Tecnológico de Costa Rica, Cartago, 159-7050, Costa Rica; Richardson College for the Environment, Department of Environmental Studies and Sciences and Department of Chemistry, The University of Winnipeg, Winnipeg, MB, R3B 2E9, Canada. Electronic address:

Although many studies have addressed the ability of subsurface filtration systems to remove emerging contaminants from wastewater at micro- and mesocosm-scale, little is known about their performance on full-scale wastewater treatment facilities. To understand better how effective these systems can be for municipal wastewater polishing, we assessed the ability of a full-scale lagoon-subsurface filter system located in Dunnottar, Manitoba, Canada, to attenuate regulatory wastewater parameters, nutrients, pharmaceuticals, and toxicity over the course of the discharge periods in 2015 and 2016 (June-October). Pharmaceuticals included β-blockers, anticonvulsant drugs, and macrolide and sulfonamide antibiotics. Read More

Appl Environ Microbiol 2018 Oct 17;84(19). Epub 2018 Sep 17.

Department of Biology, University of Waterloo, Waterloo, Ontario, Canada

Ammonia is a metabolic waste product excreted by aquatic organisms that causes toxicity when it accumulates. Aquaria and aquaculture systems therefore use biological filters that promote the growth of nitrifiers to convert ammonia to nitrate. Ammonia-oxidizing bacteria (AOB) have been isolated from aquarium biofilters and are available as commercial supplements, but recent evidence suggests that ammonia-oxidizing archaea (AOA) are abundant in aquarium biofilters. Read More

J Environ Sci (China) 2018 Jul 22;69:12-22. Epub 2018 Apr 22.

Faculty of Regional and Environmental Sciences, Department of Soil Science, University of Trier, Trier, Germany.

The increasing production and use of engineered silver nanoparticles (AgNP) in industry and private households are leading to increased concentrations of AgNP in the environment. An ecological risk assessment of AgNP is needed, but it requires understanding the long term effects of environmentally relevant concentrations of AgNP on the soil microbiome. Hence, the aim of this study was to reveal the long-term effects of AgNP on soil microorganisms. Read More

Water Res 2018 10 14;143:127-135. Epub 2018 Jun 14.

Advanced Water Management Centre, The University of Queensland, Brisbane, 4072, QLD, Australia.

Inhibition by ammoniacal nitrogen, consisting of free ammonia (NH) and ammonium ion (NH), has been widely investigated for anaerobic digestion. However, despite the large amount of research on the subject, ammoniacal nitrogen inhibition still threatens many anaerobic digesters. This paper presents (i) a method to reliably characterise ammoniacal nitrogen inhibition and (ii) a robust inhibition modelling approach. Read More